/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.12.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 04:53:21,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 04:53:21,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 04:53:21,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 04:53:21,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 04:53:22,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 04:53:22,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 04:53:22,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 04:53:22,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 04:53:22,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 04:53:22,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 04:53:22,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 04:53:22,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 04:53:22,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 04:53:22,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 04:53:22,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 04:53:22,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 04:53:22,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 04:53:22,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 04:53:22,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 04:53:22,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 04:53:22,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 04:53:22,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 04:53:22,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 04:53:22,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-15 04:53:22,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 04:53:22,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 04:53:22,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 04:53:22,042 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-15 04:53:22,053 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 04:53:22,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 04:53:22,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 04:53:22,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 04:53:22,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 04:53:22,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 04:53:22,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 04:53:22,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 04:53:22,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 04:53:22,055 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 04:53:22,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 04:53:22,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 04:53:22,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 04:53:22,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 04:53:22,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 04:53:22,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 04:53:22,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 04:53:22,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-15 04:53:22,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 04:53:22,056 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-15 04:53:22,056 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 04:53:22,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 04:53:22,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 04:53:22,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 04:53:22,304 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 04:53:22,305 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 04:53:22,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-2.c [2022-02-15 04:53:22,375 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cda10901/6e0181b234d54f738246d92c50ad0165/FLAGc22b96289 [2022-02-15 04:53:22,795 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 04:53:22,796 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-2.c [2022-02-15 04:53:22,819 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cda10901/6e0181b234d54f738246d92c50ad0165/FLAGc22b96289 [2022-02-15 04:53:23,125 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cda10901/6e0181b234d54f738246d92c50ad0165 [2022-02-15 04:53:23,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 04:53:23,130 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-15 04:53:23,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 04:53:23,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 04:53:23,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 04:53:23,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 04:53:23" (1/1) ... [2022-02-15 04:53:23,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6da609c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:53:23, skipping insertion in model container [2022-02-15 04:53:23,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 04:53:23" (1/1) ... [2022-02-15 04:53:23,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 04:53:23,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 04:53:23,550 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.12.i.cil-2.c[75436,75449] [2022-02-15 04:53:23,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 04:53:23,565 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 04:53:23,691 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.12.i.cil-2.c[75436,75449] [2022-02-15 04:53:23,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 04:53:23,714 INFO L208 MainTranslator]: Completed translation [2022-02-15 04:53:23,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:53:23 WrapperNode [2022-02-15 04:53:23,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 04:53:23,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 04:53:23,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 04:53:23,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 04:53:23,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:53:23" (1/1) ... [2022-02-15 04:53:23,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:53:23" (1/1) ... [2022-02-15 04:53:23,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:53:23" (1/1) ... [2022-02-15 04:53:23,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:53:23" (1/1) ... [2022-02-15 04:53:23,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:53:23" (1/1) ... [2022-02-15 04:53:23,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:53:23" (1/1) ... [2022-02-15 04:53:23,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:53:23" (1/1) ... [2022-02-15 04:53:23,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 04:53:23,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 04:53:23,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 04:53:23,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 04:53:23,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:53:23" (1/1) ... [2022-02-15 04:53:23,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 04:53:23,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 04:53:23,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-15 04:53:23,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-15 04:53:23,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 04:53:23,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 04:53:23,884 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 04:53:23,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-15 04:53:23,884 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-15 04:53:23,884 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 04:53:23,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-15 04:53:23,885 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-15 04:53:23,885 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-15 04:53:23,885 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-15 04:53:23,885 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 04:53:23,885 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 04:53:23,885 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 04:53:23,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 04:53:23,885 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-15 04:53:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 04:53:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 04:53:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 04:53:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-15 04:53:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-15 04:53:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-15 04:53:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-15 04:53:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-15 04:53:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-15 04:53:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-15 04:53:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-15 04:53:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 04:53:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-15 04:53:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 04:53:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-15 04:53:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 04:53:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-15 04:53:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-15 04:53:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 04:53:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 04:53:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 04:53:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-15 04:53:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-15 04:53:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-15 04:53:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-15 04:53:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 04:53:24,061 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 04:53:24,062 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 04:53:24,997 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 04:53:25,460 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-15 04:53:25,461 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-15 04:53:25,471 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 04:53:25,478 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 04:53:25,478 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 04:53:25,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 04:53:25 BoogieIcfgContainer [2022-02-15 04:53:25,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 04:53:25,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 04:53:25,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 04:53:25,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 04:53:25,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 04:53:23" (1/3) ... [2022-02-15 04:53:25,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ed60c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 04:53:25, skipping insertion in model container [2022-02-15 04:53:25,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:53:23" (2/3) ... [2022-02-15 04:53:25,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ed60c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 04:53:25, skipping insertion in model container [2022-02-15 04:53:25,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 04:53:25" (3/3) ... [2022-02-15 04:53:25,486 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.12.i.cil-2.c [2022-02-15 04:53:25,490 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-15 04:53:25,490 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 04:53:25,523 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 04:53:25,528 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 [2022-02-15 04:53:25,529 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 04:53:25,542 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 04:53:25,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-02-15 04:53:25,551 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:53:25,552 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] [2022-02-15 04:53:25,552 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:53:25,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:53:25,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1074581461, now seen corresponding path program 1 times [2022-02-15 04:53:25,563 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:53:25,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2014945571] [2022-02-15 04:53:25,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:53:25,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:53:25,622 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:53:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:53:25,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:53:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:53:25,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:53:25,999 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:53:25,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2014945571] [2022-02-15 04:53:26,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2014945571] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:53:26,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:53:26,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:53:26,002 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074706797] [2022-02-15 04:53:26,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:53:26,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:53:26,007 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:53:26,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:53:26,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:53:26,065 INFO L87 Difference]: Start difference. First operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:27,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:53:29,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:53:31,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:53:32,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:53:32,505 INFO L93 Difference]: Finished difference Result 440 states and 746 transitions. [2022-02-15 04:53:32,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:53:32,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-02-15 04:53:32,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:53:32,519 INFO L225 Difference]: With dead ends: 440 [2022-02-15 04:53:32,519 INFO L226 Difference]: Without dead ends: 268 [2022-02-15 04:53:32,521 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 [2022-02-15 04:53:32,524 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 162 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:53:32,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 481 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 540 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-02-15 04:53:32,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-02-15 04:53:32,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 185. [2022-02-15 04:53:32,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.6111111111111112) internal successors, (290), 180 states have internal predecessors, (290), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:32,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 294 transitions. [2022-02-15 04:53:32,569 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 294 transitions. Word has length 49 [2022-02-15 04:53:32,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:53:32,569 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 294 transitions. [2022-02-15 04:53:32,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:32,569 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 294 transitions. [2022-02-15 04:53:32,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-15 04:53:32,571 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:53:32,571 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] [2022-02-15 04:53:32,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 04:53:32,572 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:53:32,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:53:32,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1287983627, now seen corresponding path program 1 times [2022-02-15 04:53:32,572 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:53:32,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [986422919] [2022-02-15 04:53:32,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:53:32,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:53:32,577 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:53:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:53:32,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:53:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:53:32,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:53:32,722 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:53:32,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [986422919] [2022-02-15 04:53:32,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [986422919] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:53:32,723 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:53:32,723 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:53:32,723 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664969348] [2022-02-15 04:53:32,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:53:32,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:53:32,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:53:32,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:53:32,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:53:32,725 INFO L87 Difference]: Start difference. First operand 185 states and 294 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:35,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:53:37,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:53:38,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:53:38,022 INFO L93 Difference]: Finished difference Result 477 states and 761 transitions. [2022-02-15 04:53:38,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:53:38,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 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 50 [2022-02-15 04:53:38,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:53:38,024 INFO L225 Difference]: With dead ends: 477 [2022-02-15 04:53:38,024 INFO L226 Difference]: Without dead ends: 307 [2022-02-15 04:53:38,025 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 [2022-02-15 04:53:38,026 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 129 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:53:38,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 380 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-02-15 04:53:38,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-02-15 04:53:38,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 225. [2022-02-15 04:53:38,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 220 states have (on average 1.6545454545454545) internal successors, (364), 220 states have internal predecessors, (364), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:38,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 368 transitions. [2022-02-15 04:53:38,042 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 368 transitions. Word has length 50 [2022-02-15 04:53:38,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:53:38,042 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 368 transitions. [2022-02-15 04:53:38,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:38,043 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 368 transitions. [2022-02-15 04:53:38,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-02-15 04:53:38,051 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:53:38,052 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:53:38,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 04:53:38,052 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:53:38,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:53:38,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1547223483, now seen corresponding path program 1 times [2022-02-15 04:53:38,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:53:38,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1008578555] [2022-02-15 04:53:38,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:53:38,073 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:53:38,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:53:38,077 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:53:38,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:53:38,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:53:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:53:38,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:53:38,327 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:53:38,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1008578555] [2022-02-15 04:53:38,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1008578555] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:53:38,327 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:53:38,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:53:38,328 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808632243] [2022-02-15 04:53:38,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:53:38,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:53:38,328 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:53:38,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:53:38,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:53:38,329 INFO L87 Difference]: Start difference. First operand 225 states and 368 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:39,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:53:40,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:53:42,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:53:44,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:53:44,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:53:44,426 INFO L93 Difference]: Finished difference Result 463 states and 758 transitions. [2022-02-15 04:53:44,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:53:44,427 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 78 [2022-02-15 04:53:44,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:53:44,428 INFO L225 Difference]: With dead ends: 463 [2022-02-15 04:53:44,428 INFO L226 Difference]: Without dead ends: 253 [2022-02-15 04:53:44,429 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 [2022-02-15 04:53:44,430 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 22 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-15 04:53:44,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 499 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 371 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-02-15 04:53:44,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-02-15 04:53:44,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 236. [2022-02-15 04:53:44,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.658008658008658) internal successors, (383), 231 states have internal predecessors, (383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:44,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 387 transitions. [2022-02-15 04:53:44,442 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 387 transitions. Word has length 78 [2022-02-15 04:53:44,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:53:44,442 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 387 transitions. [2022-02-15 04:53:44,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:44,442 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 387 transitions. [2022-02-15 04:53:44,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-15 04:53:44,444 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:53:44,444 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:53:44,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 04:53:44,444 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:53:44,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:53:44,445 INFO L85 PathProgramCache]: Analyzing trace with hash 850623994, now seen corresponding path program 1 times [2022-02-15 04:53:44,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:53:44,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863416377] [2022-02-15 04:53:44,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:53:44,456 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:53:44,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:53:44,459 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:53:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:53:44,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:53:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:53:44,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:53:44,592 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:53:44,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863416377] [2022-02-15 04:53:44,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1863416377] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:53:44,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:53:44,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:53:44,593 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600091503] [2022-02-15 04:53:44,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:53:44,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:53:44,594 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:53:44,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:53:44,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:53:44,595 INFO L87 Difference]: Start difference. First operand 236 states and 387 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:47,446 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 [] [2022-02-15 04:53:49,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:53:49,264 INFO L93 Difference]: Finished difference Result 463 states and 757 transitions. [2022-02-15 04:53:49,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:53:49,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-02-15 04:53:49,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:53:49,267 INFO L225 Difference]: With dead ends: 463 [2022-02-15 04:53:49,267 INFO L226 Difference]: Without dead ends: 253 [2022-02-15 04:53:49,270 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 [2022-02-15 04:53:49,273 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 24 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-15 04:53:49,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 501 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 369 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-02-15 04:53:49,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-02-15 04:53:49,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 236. [2022-02-15 04:53:49,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.6536796536796536) internal successors, (382), 231 states have internal predecessors, (382), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:49,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 386 transitions. [2022-02-15 04:53:49,297 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 386 transitions. Word has length 91 [2022-02-15 04:53:49,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:53:49,298 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 386 transitions. [2022-02-15 04:53:49,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:49,299 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 386 transitions. [2022-02-15 04:53:49,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 04:53:49,301 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:53:49,302 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:53:49,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 04:53:49,302 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:53:49,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:53:49,303 INFO L85 PathProgramCache]: Analyzing trace with hash 513796650, now seen corresponding path program 1 times [2022-02-15 04:53:49,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:53:49,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881030769] [2022-02-15 04:53:49,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:53:49,330 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:53:49,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:53:49,336 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:53:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:53:49,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:53:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:53:49,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:53:49,482 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:53:49,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881030769] [2022-02-15 04:53:49,483 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1881030769] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:53:49,483 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:53:49,483 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:53:49,483 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905109676] [2022-02-15 04:53:49,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:53:49,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:53:49,484 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:53:49,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:53:49,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:53:49,485 INFO L87 Difference]: Start difference. First operand 236 states and 386 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:51,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:53:53,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:53:55,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:53:55,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:53:55,914 INFO L93 Difference]: Finished difference Result 462 states and 755 transitions. [2022-02-15 04:53:55,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:53:55,914 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 92 [2022-02-15 04:53:55,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:53:55,916 INFO L225 Difference]: With dead ends: 462 [2022-02-15 04:53:55,916 INFO L226 Difference]: Without dead ends: 252 [2022-02-15 04:53:55,917 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 [2022-02-15 04:53:55,917 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 28 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:53:55,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 503 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 367 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-02-15 04:53:55,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-02-15 04:53:55,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 236. [2022-02-15 04:53:55,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.6493506493506493) internal successors, (381), 231 states have internal predecessors, (381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:55,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 385 transitions. [2022-02-15 04:53:55,927 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 385 transitions. Word has length 92 [2022-02-15 04:53:55,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:53:55,927 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 385 transitions. [2022-02-15 04:53:55,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:55,928 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 385 transitions. [2022-02-15 04:53:55,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 04:53:55,929 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:53:55,929 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:53:55,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 04:53:55,929 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:53:55,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:53:55,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1361436862, now seen corresponding path program 1 times [2022-02-15 04:53:55,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:53:55,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1688369587] [2022-02-15 04:53:55,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:53:55,944 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:53:55,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:53:55,947 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:53:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:53:56,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:53:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:53:56,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:53:56,087 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:53:56,087 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1688369587] [2022-02-15 04:53:56,087 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1688369587] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:53:56,087 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:53:56,087 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:53:56,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693985358] [2022-02-15 04:53:56,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:53:56,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:53:56,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:53:56,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:53:56,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:53:56,090 INFO L87 Difference]: Start difference. First operand 236 states and 385 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:53:57,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:53:59,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:02,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:54:02,281 INFO L93 Difference]: Finished difference Result 528 states and 851 transitions. [2022-02-15 04:54:02,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:54:02,282 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 92 [2022-02-15 04:54:02,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:54:02,283 INFO L225 Difference]: With dead ends: 528 [2022-02-15 04:54:02,283 INFO L226 Difference]: Without dead ends: 318 [2022-02-15 04:54:02,284 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 [2022-02-15 04:54:02,284 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 156 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-15 04:54:02,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 380 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-02-15 04:54:02,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-02-15 04:54:02,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 236. [2022-02-15 04:54:02,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.6363636363636365) internal successors, (378), 231 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) [2022-02-15 04:54:02,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 382 transitions. [2022-02-15 04:54:02,293 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 382 transitions. Word has length 92 [2022-02-15 04:54:02,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:54:02,293 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 382 transitions. [2022-02-15 04:54:02,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:02,293 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 382 transitions. [2022-02-15 04:54:02,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 04:54:02,294 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:54:02,294 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:54:02,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 04:54:02,294 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:54:02,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:54:02,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1414414261, now seen corresponding path program 1 times [2022-02-15 04:54:02,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:54:02,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654448332] [2022-02-15 04:54:02,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:54:02,313 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:54:02,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:54:02,316 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:54:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:02,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:54:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:02,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:54:02,398 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:54:02,398 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [654448332] [2022-02-15 04:54:02,398 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [654448332] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:54:02,398 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:54:02,398 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:54:02,399 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204842458] [2022-02-15 04:54:02,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:54:02,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:54:02,399 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:54:02,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:54:02,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:54:02,400 INFO L87 Difference]: Start difference. First operand 236 states and 382 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:03,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:04,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:06,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:08,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:08,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:54:08,648 INFO L93 Difference]: Finished difference Result 528 states and 846 transitions. [2022-02-15 04:54:08,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:54:08,648 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 92 [2022-02-15 04:54:08,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:54:08,650 INFO L225 Difference]: With dead ends: 528 [2022-02-15 04:54:08,650 INFO L226 Difference]: Without dead ends: 318 [2022-02-15 04:54:08,651 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 [2022-02-15 04:54:08,651 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 150 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-15 04:54:08,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 380 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-02-15 04:54:08,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-02-15 04:54:08,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 236. [2022-02-15 04:54:08,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.6233766233766234) internal successors, (375), 231 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:08,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 379 transitions. [2022-02-15 04:54:08,660 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 379 transitions. Word has length 92 [2022-02-15 04:54:08,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:54:08,660 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 379 transitions. [2022-02-15 04:54:08,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:08,660 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 379 transitions. [2022-02-15 04:54:08,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 04:54:08,661 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:54:08,661 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:54:08,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 04:54:08,661 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:54:08,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:54:08,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1202248074, now seen corresponding path program 1 times [2022-02-15 04:54:08,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:54:08,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [189302530] [2022-02-15 04:54:08,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:54:08,673 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:54:08,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:54:08,677 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:54:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:08,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:54:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:08,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:54:08,785 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:54:08,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [189302530] [2022-02-15 04:54:08,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [189302530] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:54:08,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:54:08,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:54:08,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453146609] [2022-02-15 04:54:08,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:54:08,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:54:08,786 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:54:08,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:54:08,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:54:08,787 INFO L87 Difference]: Start difference. First operand 236 states and 379 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:10,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:12,544 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:14,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:16,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:16,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:54:16,923 INFO L93 Difference]: Finished difference Result 527 states and 840 transitions. [2022-02-15 04:54:16,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:54:16,924 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 92 [2022-02-15 04:54:16,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:54:16,925 INFO L225 Difference]: With dead ends: 527 [2022-02-15 04:54:16,926 INFO L226 Difference]: Without dead ends: 317 [2022-02-15 04:54:16,926 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 [2022-02-15 04:54:16,926 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 148 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-02-15 04:54:16,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 382 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 489 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-02-15 04:54:16,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-02-15 04:54:16,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 236. [2022-02-15 04:54:16,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.6103896103896105) internal successors, (372), 231 states have internal predecessors, (372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:16,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 376 transitions. [2022-02-15 04:54:16,934 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 376 transitions. Word has length 92 [2022-02-15 04:54:16,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:54:16,936 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 376 transitions. [2022-02-15 04:54:16,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:16,936 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 376 transitions. [2022-02-15 04:54:16,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-02-15 04:54:16,936 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:54:16,937 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:54:16,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 04:54:16,937 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:54:16,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:54:16,937 INFO L85 PathProgramCache]: Analyzing trace with hash 2288931, now seen corresponding path program 1 times [2022-02-15 04:54:16,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:54:16,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1872888525] [2022-02-15 04:54:16,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:54:16,952 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:54:16,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:54:16,959 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:54:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:17,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:54:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:17,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:54:17,091 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:54:17,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1872888525] [2022-02-15 04:54:17,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1872888525] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:54:17,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:54:17,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:54:17,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276122178] [2022-02-15 04:54:17,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:54:17,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:54:17,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:54:17,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:54:17,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:54:17,093 INFO L87 Difference]: Start difference. First operand 236 states and 376 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:19,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:21,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:23,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:23,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:54:23,664 INFO L93 Difference]: Finished difference Result 459 states and 736 transitions. [2022-02-15 04:54:23,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:54:23,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2022-02-15 04:54:23,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:54:23,666 INFO L225 Difference]: With dead ends: 459 [2022-02-15 04:54:23,666 INFO L226 Difference]: Without dead ends: 249 [2022-02-15 04:54:23,667 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 [2022-02-15 04:54:23,667 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 22 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:54:23,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 509 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 360 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-02-15 04:54:23,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-02-15 04:54:23,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 236. [2022-02-15 04:54:23,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.606060606060606) internal successors, (371), 231 states have internal predecessors, (371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:23,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 375 transitions. [2022-02-15 04:54:23,679 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 375 transitions. Word has length 93 [2022-02-15 04:54:23,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:54:23,680 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 375 transitions. [2022-02-15 04:54:23,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:23,680 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 375 transitions. [2022-02-15 04:54:23,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-02-15 04:54:23,681 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:54:23,681 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:54:23,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 04:54:23,681 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:54:23,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:54:23,682 INFO L85 PathProgramCache]: Analyzing trace with hash 858669859, now seen corresponding path program 1 times [2022-02-15 04:54:23,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:54:23,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1800645113] [2022-02-15 04:54:23,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:54:23,702 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:54:23,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:54:23,708 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:54:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:23,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:54:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:23,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:54:23,813 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:54:23,814 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1800645113] [2022-02-15 04:54:23,814 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1800645113] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:54:23,814 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:54:23,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:54:23,814 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799501248] [2022-02-15 04:54:23,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:54:23,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:54:23,814 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:54:23,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:54:23,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:54:23,815 INFO L87 Difference]: Start difference. First operand 236 states and 375 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:25,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:28,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:30,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:30,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:54:30,596 INFO L93 Difference]: Finished difference Result 527 states and 834 transitions. [2022-02-15 04:54:30,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:54:30,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2022-02-15 04:54:30,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:54:30,598 INFO L225 Difference]: With dead ends: 527 [2022-02-15 04:54:30,598 INFO L226 Difference]: Without dead ends: 317 [2022-02-15 04:54:30,598 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 [2022-02-15 04:54:30,599 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 151 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-02-15 04:54:30,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 382 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 489 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-02-15 04:54:30,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-02-15 04:54:30,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 236. [2022-02-15 04:54:30,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.593073593073593) internal successors, (368), 231 states have internal predecessors, (368), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:30,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 372 transitions. [2022-02-15 04:54:30,607 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 372 transitions. Word has length 94 [2022-02-15 04:54:30,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:54:30,608 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 372 transitions. [2022-02-15 04:54:30,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:30,608 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 372 transitions. [2022-02-15 04:54:30,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-02-15 04:54:30,609 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:54:30,609 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:54:30,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 04:54:30,609 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:54:30,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:54:30,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1676968680, now seen corresponding path program 1 times [2022-02-15 04:54:30,610 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:54:30,610 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1015234000] [2022-02-15 04:54:30,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:54:30,620 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:54:30,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:54:30,624 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:54:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:30,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:54:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:30,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:54:30,719 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:54:30,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1015234000] [2022-02-15 04:54:30,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1015234000] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:54:30,719 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:54:30,719 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:54:30,719 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931241975] [2022-02-15 04:54:30,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:54:30,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:54:30,720 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:54:30,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:54:30,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:54:30,720 INFO L87 Difference]: Start difference. First operand 236 states and 372 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) [2022-02-15 04:54:32,732 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 [] [2022-02-15 04:54:33,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:54:33,303 INFO L93 Difference]: Finished difference Result 527 states and 829 transitions. [2022-02-15 04:54:33,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:54:33,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2022-02-15 04:54:33,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:54:33,305 INFO L225 Difference]: With dead ends: 527 [2022-02-15 04:54:33,305 INFO L226 Difference]: Without dead ends: 317 [2022-02-15 04:54:33,305 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 [2022-02-15 04:54:33,306 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 149 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:54:33,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 382 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:54:33,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-02-15 04:54:33,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 236. [2022-02-15 04:54:33,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.58008658008658) internal successors, (365), 231 states have internal predecessors, (365), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:33,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 369 transitions. [2022-02-15 04:54:33,315 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 369 transitions. Word has length 95 [2022-02-15 04:54:33,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:54:33,315 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 369 transitions. [2022-02-15 04:54:33,315 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) [2022-02-15 04:54:33,315 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 369 transitions. [2022-02-15 04:54:33,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-02-15 04:54:33,316 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:54:33,316 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:54:33,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 04:54:33,316 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:54:33,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:54:33,317 INFO L85 PathProgramCache]: Analyzing trace with hash -344516719, now seen corresponding path program 1 times [2022-02-15 04:54:33,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:54:33,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [461465626] [2022-02-15 04:54:33,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:54:33,327 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:54:33,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:54:33,331 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:54:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:33,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:54:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:33,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:54:33,448 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:54:33,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [461465626] [2022-02-15 04:54:33,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [461465626] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:54:33,448 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:54:33,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:54:33,449 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146844222] [2022-02-15 04:54:33,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:54:33,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:54:33,449 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:54:33,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:54:33,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:54:33,449 INFO L87 Difference]: Start difference. First operand 236 states and 369 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) [2022-02-15 04:54:35,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:36,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:37,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:39,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:40,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:54:40,154 INFO L93 Difference]: Finished difference Result 488 states and 768 transitions. [2022-02-15 04:54:40,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:54:40,155 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 95 [2022-02-15 04:54:40,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:54:40,156 INFO L225 Difference]: With dead ends: 488 [2022-02-15 04:54:40,156 INFO L226 Difference]: Without dead ends: 278 [2022-02-15 04:54:40,157 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 [2022-02-15 04:54:40,158 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 29 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-02-15 04:54:40,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 523 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 401 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-02-15 04:54:40,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-02-15 04:54:40,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 258. [2022-02-15 04:54:40,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.5731225296442688) internal successors, (398), 253 states have internal predecessors, (398), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:40,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 402 transitions. [2022-02-15 04:54:40,169 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 402 transitions. Word has length 95 [2022-02-15 04:54:40,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:54:40,170 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 402 transitions. [2022-02-15 04:54:40,170 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) [2022-02-15 04:54:40,170 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 402 transitions. [2022-02-15 04:54:40,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-02-15 04:54:40,171 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:54:40,171 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:54:40,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 04:54:40,171 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:54:40,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:54:40,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1267586020, now seen corresponding path program 1 times [2022-02-15 04:54:40,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:54:40,172 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605492572] [2022-02-15 04:54:40,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:54:40,190 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:54:40,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:54:40,195 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:54:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:40,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:54:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:40,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:54:40,334 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:54:40,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605492572] [2022-02-15 04:54:40,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1605492572] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:54:40,335 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:54:40,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:54:40,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446679772] [2022-02-15 04:54:40,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:54:40,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:54:40,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:54:40,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:54:40,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:54:40,336 INFO L87 Difference]: Start difference. First operand 258 states and 402 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:42,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:44,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:45,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:47,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:47,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:54:47,681 INFO L93 Difference]: Finished difference Result 609 states and 956 transitions. [2022-02-15 04:54:47,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:54:47,682 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 108 [2022-02-15 04:54:47,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:54:47,683 INFO L225 Difference]: With dead ends: 609 [2022-02-15 04:54:47,683 INFO L226 Difference]: Without dead ends: 377 [2022-02-15 04:54:47,684 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 [2022-02-15 04:54:47,684 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 148 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:54:47,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 618 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 605 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-02-15 04:54:47,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-02-15 04:54:47,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 274. [2022-02-15 04:54:47,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 1.5576208178438662) internal successors, (419), 269 states have internal predecessors, (419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:47,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 423 transitions. [2022-02-15 04:54:47,704 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 423 transitions. Word has length 108 [2022-02-15 04:54:47,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:54:47,704 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 423 transitions. [2022-02-15 04:54:47,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:47,704 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 423 transitions. [2022-02-15 04:54:47,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 04:54:47,705 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:54:47,705 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:54:47,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 04:54:47,705 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:54:47,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:54:47,706 INFO L85 PathProgramCache]: Analyzing trace with hash 554717568, now seen corresponding path program 1 times [2022-02-15 04:54:47,706 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:54:47,706 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1056743664] [2022-02-15 04:54:47,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:54:47,724 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:54:47,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:54:47,727 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:54:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:47,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:54:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:47,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:54:47,809 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:54:47,809 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1056743664] [2022-02-15 04:54:47,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1056743664] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:54:47,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:54:47,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:54:47,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249266928] [2022-02-15 04:54:47,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:54:47,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:54:47,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:54:47,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:54:47,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:54:47,810 INFO L87 Difference]: Start difference. First operand 274 states and 423 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:49,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:50,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:54:50,199 INFO L93 Difference]: Finished difference Result 535 states and 832 transitions. [2022-02-15 04:54:50,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:54:50,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 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 109 [2022-02-15 04:54:50,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:54:50,201 INFO L225 Difference]: With dead ends: 535 [2022-02-15 04:54:50,201 INFO L226 Difference]: Without dead ends: 287 [2022-02-15 04:54:50,201 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 [2022-02-15 04:54:50,202 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 19 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:54:50,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 586 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 398 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:54:50,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-02-15 04:54:50,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 274. [2022-02-15 04:54:50,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 1.553903345724907) internal successors, (418), 269 states have internal predecessors, (418), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:50,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 422 transitions. [2022-02-15 04:54:50,213 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 422 transitions. Word has length 109 [2022-02-15 04:54:50,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:54:50,214 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 422 transitions. [2022-02-15 04:54:50,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:50,214 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 422 transitions. [2022-02-15 04:54:50,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-15 04:54:50,215 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:54:50,215 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:54:50,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 04:54:50,215 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:54:50,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:54:50,215 INFO L85 PathProgramCache]: Analyzing trace with hash 344847093, now seen corresponding path program 1 times [2022-02-15 04:54:50,215 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:54:50,215 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1908880834] [2022-02-15 04:54:50,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:54:50,237 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:54:50,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:54:50,241 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:54:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:50,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:54:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:50,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:54:50,370 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:54:50,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1908880834] [2022-02-15 04:54:50,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1908880834] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:54:50,370 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:54:50,370 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:54:50,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112215580] [2022-02-15 04:54:50,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:54:50,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:54:50,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:54:50,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:54:50,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:54:50,371 INFO L87 Difference]: Start difference. First operand 274 states and 422 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:52,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:55,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:56,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:58,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:54:58,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:54:58,843 INFO L93 Difference]: Finished difference Result 531 states and 826 transitions. [2022-02-15 04:54:58,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:54:58,843 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 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 110 [2022-02-15 04:54:58,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:54:58,844 INFO L225 Difference]: With dead ends: 531 [2022-02-15 04:54:58,844 INFO L226 Difference]: Without dead ends: 283 [2022-02-15 04:54:58,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-15 04:54:58,845 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 3 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:54:58,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 657 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 440 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2022-02-15 04:54:58,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-02-15 04:54:58,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2022-02-15 04:54:58,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5431654676258992) internal successors, (429), 278 states have internal predecessors, (429), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:58,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 433 transitions. [2022-02-15 04:54:58,855 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 433 transitions. Word has length 110 [2022-02-15 04:54:58,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:54:58,855 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 433 transitions. [2022-02-15 04:54:58,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:54:58,855 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 433 transitions. [2022-02-15 04:54:58,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-15 04:54:58,856 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:54:58,856 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:54:58,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 04:54:58,856 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:54:58,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:54:58,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1069725064, now seen corresponding path program 1 times [2022-02-15 04:54:58,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:54:58,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960446688] [2022-02-15 04:54:58,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:54:58,875 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:54:58,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:54:58,879 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:54:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:58,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:54:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:54:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:54:58,967 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:54:58,967 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960446688] [2022-02-15 04:54:58,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [960446688] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:54:58,967 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:54:58,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:54:58,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237627050] [2022-02-15 04:54:58,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:54:58,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:54:58,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:54:58,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:54:58,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:54:58,968 INFO L87 Difference]: Start difference. First operand 283 states and 433 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:00,983 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 [] [2022-02-15 04:55:01,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:55:01,421 INFO L93 Difference]: Finished difference Result 557 states and 858 transitions. [2022-02-15 04:55:01,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:55:01,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-02-15 04:55:01,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:55:01,427 INFO L225 Difference]: With dead ends: 557 [2022-02-15 04:55:01,427 INFO L226 Difference]: Without dead ends: 300 [2022-02-15 04:55:01,428 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 [2022-02-15 04:55:01,428 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 35 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:55:01,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 529 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:55:01,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-02-15 04:55:01,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 283. [2022-02-15 04:55:01,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.539568345323741) internal successors, (428), 278 states have internal predecessors, (428), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:01,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 432 transitions. [2022-02-15 04:55:01,438 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 432 transitions. Word has length 111 [2022-02-15 04:55:01,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:55:01,439 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 432 transitions. [2022-02-15 04:55:01,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:01,439 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 432 transitions. [2022-02-15 04:55:01,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-02-15 04:55:01,464 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:55:01,465 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:55:01,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 04:55:01,465 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:55:01,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:55:01,465 INFO L85 PathProgramCache]: Analyzing trace with hash -537282117, now seen corresponding path program 1 times [2022-02-15 04:55:01,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:55:01,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497289357] [2022-02-15 04:55:01,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:55:01,479 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:55:01,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:55:01,485 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:55:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:01,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:55:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:01,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:55:01,592 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:55:01,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497289357] [2022-02-15 04:55:01,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1497289357] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:55:01,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:55:01,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:55:01,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874271680] [2022-02-15 04:55:01,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:55:01,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:55:01,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:55:01,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:55:01,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:55:01,594 INFO L87 Difference]: Start difference. First operand 283 states and 432 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:03,604 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 [] [2022-02-15 04:55:04,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:55:04,122 INFO L93 Difference]: Finished difference Result 706 states and 1091 transitions. [2022-02-15 04:55:04,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:55:04,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-02-15 04:55:04,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:55:04,124 INFO L225 Difference]: With dead ends: 706 [2022-02-15 04:55:04,124 INFO L226 Difference]: Without dead ends: 449 [2022-02-15 04:55:04,125 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 [2022-02-15 04:55:04,125 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 131 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:55:04,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 394 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:55:04,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2022-02-15 04:55:04,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 347. [2022-02-15 04:55:04,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 342 states have (on average 1.5555555555555556) internal successors, (532), 342 states have internal predecessors, (532), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:04,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 536 transitions. [2022-02-15 04:55:04,144 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 536 transitions. Word has length 117 [2022-02-15 04:55:04,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:55:04,144 INFO L470 AbstractCegarLoop]: Abstraction has 347 states and 536 transitions. [2022-02-15 04:55:04,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:04,144 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 536 transitions. [2022-02-15 04:55:04,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-02-15 04:55:04,145 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:55:04,145 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:55:04,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 04:55:04,145 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:55:04,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:55:04,146 INFO L85 PathProgramCache]: Analyzing trace with hash -158828971, now seen corresponding path program 1 times [2022-02-15 04:55:04,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:55:04,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521174900] [2022-02-15 04:55:04,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:55:04,168 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:55:04,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:55:04,173 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:55:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:04,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:55:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:04,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:55:04,270 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:55:04,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521174900] [2022-02-15 04:55:04,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [521174900] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:55:04,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:55:04,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:55:04,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062290427] [2022-02-15 04:55:04,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:55:04,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:55:04,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:55:04,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:55:04,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:55:04,271 INFO L87 Difference]: Start difference. First operand 347 states and 536 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) [2022-02-15 04:55:06,287 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 [] [2022-02-15 04:55:06,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:55:06,845 INFO L93 Difference]: Finished difference Result 748 states and 1157 transitions. [2022-02-15 04:55:06,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:55:06,845 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 122 [2022-02-15 04:55:06,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:55:06,847 INFO L225 Difference]: With dead ends: 748 [2022-02-15 04:55:06,847 INFO L226 Difference]: Without dead ends: 427 [2022-02-15 04:55:06,847 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 [2022-02-15 04:55:06,848 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 153 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:55:06,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 364 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:55:06,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-02-15 04:55:06,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 347. [2022-02-15 04:55:06,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 342 states have (on average 1.5380116959064327) internal successors, (526), 342 states have internal predecessors, (526), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:06,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 530 transitions. [2022-02-15 04:55:06,863 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 530 transitions. Word has length 122 [2022-02-15 04:55:06,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:55:06,863 INFO L470 AbstractCegarLoop]: Abstraction has 347 states and 530 transitions. [2022-02-15 04:55:06,863 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) [2022-02-15 04:55:06,863 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 530 transitions. [2022-02-15 04:55:06,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-02-15 04:55:06,864 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:55:06,864 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:55:06,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 04:55:06,864 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:55:06,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:55:06,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1699899791, now seen corresponding path program 1 times [2022-02-15 04:55:06,864 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:55:06,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38530201] [2022-02-15 04:55:06,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:55:06,882 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:55:06,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:55:06,888 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:55:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:06,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:55:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:07,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:55:07,004 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:55:07,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38530201] [2022-02-15 04:55:07,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [38530201] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:55:07,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:55:07,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:55:07,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725687738] [2022-02-15 04:55:07,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:55:07,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:55:07,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:55:07,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:55:07,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:55:07,006 INFO L87 Difference]: Start difference. First operand 347 states and 530 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:09,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:55:11,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:55:11,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:55:11,917 INFO L93 Difference]: Finished difference Result 764 states and 1174 transitions. [2022-02-15 04:55:11,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:55:11,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-02-15 04:55:11,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:55:11,919 INFO L225 Difference]: With dead ends: 764 [2022-02-15 04:55:11,919 INFO L226 Difference]: Without dead ends: 443 [2022-02-15 04:55:11,922 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 [2022-02-15 04:55:11,923 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 85 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-15 04:55:11,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 501 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 515 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-02-15 04:55:11,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-02-15 04:55:11,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 386. [2022-02-15 04:55:11,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5433070866141732) internal successors, (588), 381 states have internal predecessors, (588), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:11,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 592 transitions. [2022-02-15 04:55:11,940 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 592 transitions. Word has length 123 [2022-02-15 04:55:11,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:55:11,940 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 592 transitions. [2022-02-15 04:55:11,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:11,940 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 592 transitions. [2022-02-15 04:55:11,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-02-15 04:55:11,941 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:55:11,941 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:55:11,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 04:55:11,941 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:55:11,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:55:11,942 INFO L85 PathProgramCache]: Analyzing trace with hash 34204659, now seen corresponding path program 1 times [2022-02-15 04:55:11,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:55:11,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1517699249] [2022-02-15 04:55:11,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:55:11,960 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:55:11,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:55:11,966 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:55:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:12,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:55:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:12,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:55:12,057 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:55:12,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1517699249] [2022-02-15 04:55:12,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1517699249] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:55:12,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:55:12,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:55:12,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649350921] [2022-02-15 04:55:12,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:55:12,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:55:12,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:55:12,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:55:12,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:55:12,059 INFO L87 Difference]: Start difference. First operand 386 states and 592 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:13,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:55:15,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:55:17,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:55:19,870 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 [] [2022-02-15 04:55:20,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:55:20,332 INFO L93 Difference]: Finished difference Result 792 states and 1220 transitions. [2022-02-15 04:55:20,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:55:20,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-02-15 04:55:20,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:55:20,334 INFO L225 Difference]: With dead ends: 792 [2022-02-15 04:55:20,334 INFO L226 Difference]: Without dead ends: 432 [2022-02-15 04:55:20,335 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 [2022-02-15 04:55:20,335 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 35 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-02-15 04:55:20,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 619 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 460 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-02-15 04:55:20,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-02-15 04:55:20,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 410. [2022-02-15 04:55:20,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 405 states have (on average 1.5382716049382716) internal successors, (623), 405 states have internal predecessors, (623), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:20,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 627 transitions. [2022-02-15 04:55:20,354 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 627 transitions. Word has length 123 [2022-02-15 04:55:20,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:55:20,355 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 627 transitions. [2022-02-15 04:55:20,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:20,355 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 627 transitions. [2022-02-15 04:55:20,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-15 04:55:20,356 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:55:20,356 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:55:20,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 04:55:20,356 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:55:20,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:55:20,357 INFO L85 PathProgramCache]: Analyzing trace with hash 287066353, now seen corresponding path program 1 times [2022-02-15 04:55:20,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:55:20,357 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1234493257] [2022-02-15 04:55:20,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:55:20,378 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:55:20,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:55:20,383 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:55:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:20,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:55:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:20,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:55:20,470 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:55:20,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1234493257] [2022-02-15 04:55:20,470 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1234493257] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:55:20,470 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:55:20,470 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:55:20,470 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571730532] [2022-02-15 04:55:20,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:55:20,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:55:20,471 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:55:20,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:55:20,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:55:20,471 INFO L87 Difference]: Start difference. First operand 410 states and 627 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:22,483 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 [] [2022-02-15 04:55:22,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:55:22,929 INFO L93 Difference]: Finished difference Result 874 states and 1339 transitions. [2022-02-15 04:55:22,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:55:22,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-02-15 04:55:22,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:55:22,931 INFO L225 Difference]: With dead ends: 874 [2022-02-15 04:55:22,931 INFO L226 Difference]: Without dead ends: 490 [2022-02-15 04:55:22,932 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 [2022-02-15 04:55:22,932 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 125 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:55:22,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 364 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:55:22,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2022-02-15 04:55:22,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 410. [2022-02-15 04:55:22,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 405 states have (on average 1.5333333333333334) internal successors, (621), 405 states have internal predecessors, (621), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:22,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 625 transitions. [2022-02-15 04:55:22,967 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 625 transitions. Word has length 124 [2022-02-15 04:55:22,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:55:22,967 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 625 transitions. [2022-02-15 04:55:22,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:22,967 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 625 transitions. [2022-02-15 04:55:22,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-15 04:55:22,968 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:55:22,968 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:55:22,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 04:55:22,968 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:55:22,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:55:22,969 INFO L85 PathProgramCache]: Analyzing trace with hash 777583331, now seen corresponding path program 1 times [2022-02-15 04:55:22,969 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:55:22,969 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691823577] [2022-02-15 04:55:22,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:55:22,990 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:55:22,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:55:22,996 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:55:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:23,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:55:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:23,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:55:23,085 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:55:23,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691823577] [2022-02-15 04:55:23,085 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [691823577] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:55:23,085 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:55:23,085 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:55:23,085 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974935569] [2022-02-15 04:55:23,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:55:23,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:55:23,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:55:23,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:55:23,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:55:23,086 INFO L87 Difference]: Start difference. First operand 410 states and 625 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:25,098 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 [] [2022-02-15 04:55:25,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:55:25,607 INFO L93 Difference]: Finished difference Result 914 states and 1399 transitions. [2022-02-15 04:55:25,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:55:25,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-02-15 04:55:25,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:55:25,609 INFO L225 Difference]: With dead ends: 914 [2022-02-15 04:55:25,609 INFO L226 Difference]: Without dead ends: 530 [2022-02-15 04:55:25,611 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 [2022-02-15 04:55:25,611 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 118 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:55:25,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 365 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:55:25,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2022-02-15 04:55:25,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 453. [2022-02-15 04:55:25,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.5401785714285714) internal successors, (690), 448 states have internal predecessors, (690), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:25,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 694 transitions. [2022-02-15 04:55:25,642 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 694 transitions. Word has length 131 [2022-02-15 04:55:25,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:55:25,642 INFO L470 AbstractCegarLoop]: Abstraction has 453 states and 694 transitions. [2022-02-15 04:55:25,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:25,642 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 694 transitions. [2022-02-15 04:55:25,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-15 04:55:25,643 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:55:25,643 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:55:25,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 04:55:25,644 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:55:25,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:55:25,644 INFO L85 PathProgramCache]: Analyzing trace with hash -347293821, now seen corresponding path program 1 times [2022-02-15 04:55:25,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:55:25,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1922175977] [2022-02-15 04:55:25,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:55:25,684 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:55:25,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:55:25,691 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:55:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:25,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:55:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:25,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:55:25,817 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:55:25,817 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1922175977] [2022-02-15 04:55:25,817 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1922175977] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:55:25,817 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:55:25,817 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:55:25,817 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289610934] [2022-02-15 04:55:25,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:55:25,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:55:25,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:55:25,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:55:25,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:55:25,818 INFO L87 Difference]: Start difference. First operand 453 states and 694 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:27,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:55:29,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:55:31,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:55:33,602 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 [] [2022-02-15 04:55:34,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:55:34,110 INFO L93 Difference]: Finished difference Result 928 states and 1425 transitions. [2022-02-15 04:55:34,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:55:34,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-02-15 04:55:34,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:55:34,113 INFO L225 Difference]: With dead ends: 928 [2022-02-15 04:55:34,113 INFO L226 Difference]: Without dead ends: 501 [2022-02-15 04:55:34,114 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 [2022-02-15 04:55:34,115 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 68 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-02-15 04:55:34,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 501 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 500 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-02-15 04:55:34,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-02-15 04:55:34,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 457. [2022-02-15 04:55:34,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 452 states have (on average 1.5353982300884956) internal successors, (694), 452 states have internal predecessors, (694), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:34,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 698 transitions. [2022-02-15 04:55:34,145 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 698 transitions. Word has length 132 [2022-02-15 04:55:34,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:55:34,145 INFO L470 AbstractCegarLoop]: Abstraction has 457 states and 698 transitions. [2022-02-15 04:55:34,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:34,145 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 698 transitions. [2022-02-15 04:55:34,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-02-15 04:55:34,146 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:55:34,146 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:55:34,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 04:55:34,147 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:55:34,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:55:34,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1930169128, now seen corresponding path program 1 times [2022-02-15 04:55:34,147 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:55:34,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1099756929] [2022-02-15 04:55:34,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:55:34,187 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:55:34,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:55:34,194 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:55:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:34,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:55:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:34,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:55:34,329 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:55:34,329 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1099756929] [2022-02-15 04:55:34,329 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1099756929] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:55:34,330 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:55:34,330 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:55:34,330 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996004719] [2022-02-15 04:55:34,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:55:34,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:55:34,330 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:55:34,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:55:34,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:55:34,331 INFO L87 Difference]: Start difference. First operand 457 states and 698 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:36,340 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 [] [2022-02-15 04:55:36,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:55:36,908 INFO L93 Difference]: Finished difference Result 958 states and 1468 transitions. [2022-02-15 04:55:36,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:55:36,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-02-15 04:55:36,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:55:36,910 INFO L225 Difference]: With dead ends: 958 [2022-02-15 04:55:36,910 INFO L226 Difference]: Without dead ends: 527 [2022-02-15 04:55:36,911 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 [2022-02-15 04:55:36,912 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 142 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:55:36,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 404 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:55:36,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-02-15 04:55:36,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 457. [2022-02-15 04:55:36,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 452 states have (on average 1.5176991150442478) internal successors, (686), 452 states have internal predecessors, (686), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:36,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 690 transitions. [2022-02-15 04:55:36,938 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 690 transitions. Word has length 139 [2022-02-15 04:55:36,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:55:36,939 INFO L470 AbstractCegarLoop]: Abstraction has 457 states and 690 transitions. [2022-02-15 04:55:36,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:36,939 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 690 transitions. [2022-02-15 04:55:36,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-02-15 04:55:36,940 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:55:36,940 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:55:36,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 04:55:36,940 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:55:36,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:55:36,941 INFO L85 PathProgramCache]: Analyzing trace with hash -231720393, now seen corresponding path program 1 times [2022-02-15 04:55:36,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:55:36,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [710949186] [2022-02-15 04:55:36,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:55:36,966 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:55:36,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:55:36,982 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:55:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:37,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:55:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:37,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:55:37,084 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:55:37,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [710949186] [2022-02-15 04:55:37,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [710949186] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:55:37,084 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:55:37,084 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:55:37,084 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977486764] [2022-02-15 04:55:37,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:55:37,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:55:37,085 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:55:37,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:55:37,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:55:37,085 INFO L87 Difference]: Start difference. First operand 457 states and 690 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:39,093 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 [] [2022-02-15 04:55:39,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:55:39,640 INFO L93 Difference]: Finished difference Result 1001 states and 1520 transitions. [2022-02-15 04:55:39,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:55:39,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-02-15 04:55:39,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:55:39,642 INFO L225 Difference]: With dead ends: 1001 [2022-02-15 04:55:39,643 INFO L226 Difference]: Without dead ends: 570 [2022-02-15 04:55:39,644 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 [2022-02-15 04:55:39,644 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 124 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:55:39,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 384 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:55:39,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2022-02-15 04:55:39,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 487. [2022-02-15 04:55:39,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 482 states have (on average 1.508298755186722) internal successors, (727), 482 states have internal predecessors, (727), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:39,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 731 transitions. [2022-02-15 04:55:39,675 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 731 transitions. Word has length 144 [2022-02-15 04:55:39,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:55:39,675 INFO L470 AbstractCegarLoop]: Abstraction has 487 states and 731 transitions. [2022-02-15 04:55:39,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:39,676 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 731 transitions. [2022-02-15 04:55:39,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-15 04:55:39,677 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:55:39,677 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:55:39,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 04:55:39,677 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:55:39,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:55:39,677 INFO L85 PathProgramCache]: Analyzing trace with hash -683928855, now seen corresponding path program 1 times [2022-02-15 04:55:39,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:55:39,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424721620] [2022-02-15 04:55:39,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:55:39,720 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:55:39,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:55:39,738 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:55:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:39,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:55:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:39,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:55:39,845 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:55:39,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424721620] [2022-02-15 04:55:39,845 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1424721620] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:55:39,845 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:55:39,845 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:55:39,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984562621] [2022-02-15 04:55:39,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:55:39,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:55:39,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:55:39,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:55:39,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:55:39,846 INFO L87 Difference]: Start difference. First operand 487 states and 731 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:40,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:55:43,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:55:45,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:55:45,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:55:45,865 INFO L93 Difference]: Finished difference Result 1018 states and 1534 transitions. [2022-02-15 04:55:45,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:55:45,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-02-15 04:55:45,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:55:45,867 INFO L225 Difference]: With dead ends: 1018 [2022-02-15 04:55:45,867 INFO L226 Difference]: Without dead ends: 557 [2022-02-15 04:55:45,868 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 [2022-02-15 04:55:45,868 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 130 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-15 04:55:45,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 418 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-02-15 04:55:45,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-02-15 04:55:45,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 487. [2022-02-15 04:55:45,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 482 states have (on average 1.4937759336099585) internal successors, (720), 482 states have internal predecessors, (720), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:45,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 724 transitions. [2022-02-15 04:55:45,895 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 724 transitions. Word has length 145 [2022-02-15 04:55:45,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:55:45,895 INFO L470 AbstractCegarLoop]: Abstraction has 487 states and 724 transitions. [2022-02-15 04:55:45,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:45,895 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 724 transitions. [2022-02-15 04:55:45,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-15 04:55:45,896 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:55:45,896 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:55:45,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 04:55:45,897 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:55:45,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:55:45,897 INFO L85 PathProgramCache]: Analyzing trace with hash -901822382, now seen corresponding path program 1 times [2022-02-15 04:55:45,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:55:45,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372027701] [2022-02-15 04:55:45,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:55:45,924 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:55:45,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:55:45,940 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:55:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:46,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:55:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:46,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:55:46,062 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:55:46,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372027701] [2022-02-15 04:55:46,063 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1372027701] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:55:46,063 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:55:46,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:55:46,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7075455] [2022-02-15 04:55:46,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:55:46,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:55:46,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:55:46,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:55:46,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:55:46,064 INFO L87 Difference]: Start difference. First operand 487 states and 724 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:48,075 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 [] [2022-02-15 04:55:48,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:55:48,561 INFO L93 Difference]: Finished difference Result 980 states and 1465 transitions. [2022-02-15 04:55:48,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:55:48,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-02-15 04:55:48,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:55:48,564 INFO L225 Difference]: With dead ends: 980 [2022-02-15 04:55:48,564 INFO L226 Difference]: Without dead ends: 519 [2022-02-15 04:55:48,564 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 [2022-02-15 04:55:48,565 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 66 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:55:48,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 533 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:55:48,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-02-15 04:55:48,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 487. [2022-02-15 04:55:48,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 482 states have (on average 1.491701244813278) internal successors, (719), 482 states have internal predecessors, (719), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:48,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 723 transitions. [2022-02-15 04:55:48,590 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 723 transitions. Word has length 145 [2022-02-15 04:55:48,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:55:48,590 INFO L470 AbstractCegarLoop]: Abstraction has 487 states and 723 transitions. [2022-02-15 04:55:48,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:48,590 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 723 transitions. [2022-02-15 04:55:48,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-15 04:55:48,591 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:55:48,591 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:55:48,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 04:55:48,592 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:55:48,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:55:48,592 INFO L85 PathProgramCache]: Analyzing trace with hash 917142251, now seen corresponding path program 1 times [2022-02-15 04:55:48,592 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:55:48,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1309410629] [2022-02-15 04:55:48,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:55:48,613 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:55:48,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:55:48,636 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:55:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:48,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:55:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:48,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:55:48,714 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:55:48,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1309410629] [2022-02-15 04:55:48,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1309410629] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:55:48,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:55:48,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:55:48,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503505007] [2022-02-15 04:55:48,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:55:48,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:55:48,715 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:55:48,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:55:48,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:55:48,718 INFO L87 Difference]: Start difference. First operand 487 states and 723 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:50,220 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:55:52,248 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 [] [2022-02-15 04:55:53,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:55:53,075 INFO L93 Difference]: Finished difference Result 1406 states and 2107 transitions. [2022-02-15 04:55:53,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:55:53,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-02-15 04:55:53,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:55:53,079 INFO L225 Difference]: With dead ends: 1406 [2022-02-15 04:55:53,079 INFO L226 Difference]: Without dead ends: 945 [2022-02-15 04:55:53,080 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 [2022-02-15 04:55:53,080 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:55:53,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 438 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 298 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-02-15 04:55:53,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2022-02-15 04:55:53,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 945. [2022-02-15 04:55:53,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 940 states have (on average 1.4861702127659575) internal successors, (1397), 940 states have internal predecessors, (1397), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:53,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1401 transitions. [2022-02-15 04:55:53,145 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1401 transitions. Word has length 145 [2022-02-15 04:55:53,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:55:53,145 INFO L470 AbstractCegarLoop]: Abstraction has 945 states and 1401 transitions. [2022-02-15 04:55:53,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:53,146 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1401 transitions. [2022-02-15 04:55:53,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-15 04:55:53,147 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:55:53,147 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:55:53,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 04:55:53,147 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:55:53,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:55:53,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1948183149, now seen corresponding path program 1 times [2022-02-15 04:55:53,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:55:53,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544005284] [2022-02-15 04:55:53,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:55:53,170 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:55:53,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:55:53,177 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:55:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:53,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:55:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:53,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:55:53,266 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:55:53,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544005284] [2022-02-15 04:55:53,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1544005284] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:55:53,266 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:55:53,266 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:55:53,266 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963575785] [2022-02-15 04:55:53,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:55:53,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:55:53,267 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:55:53,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:55:53,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:55:53,268 INFO L87 Difference]: Start difference. First operand 945 states and 1401 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 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) [2022-02-15 04:55:54,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:55:56,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:55:58,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:55:59,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:55:59,057 INFO L93 Difference]: Finished difference Result 1891 states and 2809 transitions. [2022-02-15 04:55:59,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:55:59,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 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 145 [2022-02-15 04:55:59,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:55:59,061 INFO L225 Difference]: With dead ends: 1891 [2022-02-15 04:55:59,061 INFO L226 Difference]: Without dead ends: 972 [2022-02-15 04:55:59,063 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 [2022-02-15 04:55:59,063 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-15 04:55:59,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 423 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 260 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-02-15 04:55:59,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2022-02-15 04:55:59,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 972. [2022-02-15 04:55:59,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 967 states have (on average 1.4808686659772492) internal successors, (1432), 967 states have internal predecessors, (1432), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:55:59,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1436 transitions. [2022-02-15 04:55:59,134 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1436 transitions. Word has length 145 [2022-02-15 04:55:59,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:55:59,134 INFO L470 AbstractCegarLoop]: Abstraction has 972 states and 1436 transitions. [2022-02-15 04:55:59,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 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) [2022-02-15 04:55:59,134 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1436 transitions. [2022-02-15 04:55:59,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-15 04:55:59,142 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:55:59,142 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:55:59,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 04:55:59,143 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:55:59,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:55:59,143 INFO L85 PathProgramCache]: Analyzing trace with hash 666010863, now seen corresponding path program 1 times [2022-02-15 04:55:59,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:55:59,143 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909493776] [2022-02-15 04:55:59,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:55:59,174 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:55:59,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:55:59,182 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:55:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:59,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:55:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:55:59,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:55:59,275 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:55:59,275 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909493776] [2022-02-15 04:55:59,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [909493776] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:55:59,275 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:55:59,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:55:59,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704852339] [2022-02-15 04:55:59,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:55:59,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:55:59,276 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:55:59,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:55:59,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:55:59,276 INFO L87 Difference]: Start difference. First operand 972 states and 1436 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:56:01,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:56:03,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:56:03,314 INFO L93 Difference]: Finished difference Result 1920 states and 2845 transitions. [2022-02-15 04:56:03,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:56:03,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-02-15 04:56:03,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:56:03,317 INFO L225 Difference]: With dead ends: 1920 [2022-02-15 04:56:03,317 INFO L226 Difference]: Without dead ends: 974 [2022-02-15 04:56:03,319 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 [2022-02-15 04:56:03,320 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-15 04:56:03,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 402 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-15 04:56:03,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2022-02-15 04:56:03,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 974. [2022-02-15 04:56:03,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 969 states have (on average 1.479876160990712) internal successors, (1434), 969 states have internal predecessors, (1434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:56:03,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1438 transitions. [2022-02-15 04:56:03,369 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1438 transitions. Word has length 145 [2022-02-15 04:56:03,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:56:03,369 INFO L470 AbstractCegarLoop]: Abstraction has 974 states and 1438 transitions. [2022-02-15 04:56:03,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:56:03,369 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1438 transitions. [2022-02-15 04:56:03,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-15 04:56:03,371 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:56:03,371 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:56:03,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 04:56:03,371 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:56:03,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:56:03,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1600409301, now seen corresponding path program 1 times [2022-02-15 04:56:03,371 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:56:03,371 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958103536] [2022-02-15 04:56:03,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:56:03,395 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:56:03,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:56:03,404 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:56:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:56:03,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:56:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:56:03,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:56:03,507 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:56:03,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958103536] [2022-02-15 04:56:03,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1958103536] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:56:03,507 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:56:03,507 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:56:03,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561701212] [2022-02-15 04:56:03,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:56:03,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:56:03,508 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:56:03,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:56:03,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:56:03,508 INFO L87 Difference]: Start difference. First operand 974 states and 1438 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:56:04,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:56:06,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:56:08,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:56:08,351 INFO L93 Difference]: Finished difference Result 2378 states and 3535 transitions. [2022-02-15 04:56:08,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:56:08,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-02-15 04:56:08,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:56:08,355 INFO L225 Difference]: With dead ends: 2378 [2022-02-15 04:56:08,355 INFO L226 Difference]: Without dead ends: 1432 [2022-02-15 04:56:08,357 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 [2022-02-15 04:56:08,358 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 151 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-15 04:56:08,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 583 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 443 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-02-15 04:56:08,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2022-02-15 04:56:08,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1432. [2022-02-15 04:56:08,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1427 states have (on average 1.4800280308339173) internal successors, (2112), 1427 states have internal predecessors, (2112), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:56:08,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2116 transitions. [2022-02-15 04:56:08,479 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2116 transitions. Word has length 147 [2022-02-15 04:56:08,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:56:08,479 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 2116 transitions. [2022-02-15 04:56:08,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:56:08,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2116 transitions. [2022-02-15 04:56:08,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-02-15 04:56:08,482 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:56:08,482 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, 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] [2022-02-15 04:56:08,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-15 04:56:08,482 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:56:08,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:56:08,483 INFO L85 PathProgramCache]: Analyzing trace with hash 860310021, now seen corresponding path program 1 times [2022-02-15 04:56:08,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:56:08,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [954697919] [2022-02-15 04:56:08,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:56:08,512 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:56:08,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:56:08,520 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:56:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:56:08,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:56:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:56:08,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:56:08,631 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:56:08,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [954697919] [2022-02-15 04:56:08,631 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [954697919] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:56:08,631 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:56:08,631 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:56:08,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793233264] [2022-02-15 04:56:08,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:56:08,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:56:08,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:56:08,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:56:08,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:56:08,633 INFO L87 Difference]: Start difference. First operand 1432 states and 2116 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:56:11,645 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 [] [2022-02-15 04:56:13,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:56:14,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:56:14,184 INFO L93 Difference]: Finished difference Result 2986 states and 4419 transitions. [2022-02-15 04:56:14,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:56:14,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-02-15 04:56:14,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:56:14,190 INFO L225 Difference]: With dead ends: 2986 [2022-02-15 04:56:14,191 INFO L226 Difference]: Without dead ends: 1582 [2022-02-15 04:56:14,199 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 [2022-02-15 04:56:14,200 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 40 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:56:14,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 619 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 490 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-02-15 04:56:14,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1582 states. [2022-02-15 04:56:14,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1582 to 1516. [2022-02-15 04:56:14,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 1511 states have (on average 1.4791528788881536) internal successors, (2235), 1511 states have internal predecessors, (2235), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:56:14,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2239 transitions. [2022-02-15 04:56:14,318 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2239 transitions. Word has length 176 [2022-02-15 04:56:14,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:56:14,319 INFO L470 AbstractCegarLoop]: Abstraction has 1516 states and 2239 transitions. [2022-02-15 04:56:14,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:56:14,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2239 transitions. [2022-02-15 04:56:14,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-02-15 04:56:14,322 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:56:14,322 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:56:14,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-15 04:56:14,323 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:56:14,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:56:14,323 INFO L85 PathProgramCache]: Analyzing trace with hash -460903366, now seen corresponding path program 1 times [2022-02-15 04:56:14,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:56:14,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058569051] [2022-02-15 04:56:14,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:56:23,294 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:56:23,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:56:23,302 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:56:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:56:23,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:56:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:56:23,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:56:23,402 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:56:23,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058569051] [2022-02-15 04:56:23,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1058569051] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:56:23,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:56:23,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:56:23,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661355052] [2022-02-15 04:56:23,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:56:23,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:56:23,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:56:23,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:56:23,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:56:23,403 INFO L87 Difference]: Start difference. First operand 1516 states and 2239 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:56:25,415 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 [] [2022-02-15 04:56:26,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:56:26,061 INFO L93 Difference]: Finished difference Result 3209 states and 4725 transitions. [2022-02-15 04:56:26,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:56:26,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 199 [2022-02-15 04:56:26,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:56:26,067 INFO L225 Difference]: With dead ends: 3209 [2022-02-15 04:56:26,067 INFO L226 Difference]: Without dead ends: 1721 [2022-02-15 04:56:26,070 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 [2022-02-15 04:56:26,070 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 129 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:56:26,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 390 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:56:26,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2022-02-15 04:56:26,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1516. [2022-02-15 04:56:26,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 1511 states have (on average 1.4632693580410325) internal successors, (2211), 1511 states have internal predecessors, (2211), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:56:26,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2215 transitions. [2022-02-15 04:56:26,204 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2215 transitions. Word has length 199 [2022-02-15 04:56:26,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:56:26,205 INFO L470 AbstractCegarLoop]: Abstraction has 1516 states and 2215 transitions. [2022-02-15 04:56:26,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:56:26,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2215 transitions. [2022-02-15 04:56:26,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-02-15 04:56:26,209 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:56:26,209 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:56:26,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-15 04:56:26,209 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:56:26,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:56:26,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1704769598, now seen corresponding path program 1 times [2022-02-15 04:56:26,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:56:26,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2140142298] [2022-02-15 04:56:26,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:56:26,274 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:56:26,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:56:26,281 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:56:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:56:26,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:56:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:56:26,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:56:26,412 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:56:26,412 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2140142298] [2022-02-15 04:56:26,412 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2140142298] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:56:26,412 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:56:26,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:56:26,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331876457] [2022-02-15 04:56:26,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:56:26,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:56:26,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:56:26,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:56:26,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:56:26,413 INFO L87 Difference]: Start difference. First operand 1516 states and 2215 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:56:29,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:56:29,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:56:29,761 INFO L93 Difference]: Finished difference Result 3491 states and 5123 transitions. [2022-02-15 04:56:29,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:56:29,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 201 [2022-02-15 04:56:29,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:56:29,767 INFO L225 Difference]: With dead ends: 3491 [2022-02-15 04:56:29,768 INFO L226 Difference]: Without dead ends: 2003 [2022-02-15 04:56:29,770 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 [2022-02-15 04:56:29,770 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-15 04:56:29,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 384 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-15 04:56:29,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2022-02-15 04:56:29,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 2003. [2022-02-15 04:56:29,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 1998 states have (on average 1.465965965965966) internal successors, (2929), 1998 states have internal predecessors, (2929), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:56:29,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2933 transitions. [2022-02-15 04:56:29,896 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2933 transitions. Word has length 201 [2022-02-15 04:56:29,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:56:29,897 INFO L470 AbstractCegarLoop]: Abstraction has 2003 states and 2933 transitions. [2022-02-15 04:56:29,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:56:29,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2933 transitions. [2022-02-15 04:56:29,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-02-15 04:56:29,900 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:56:29,900 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:56:29,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-15 04:56:29,900 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:56:29,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:56:29,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1551552478, now seen corresponding path program 1 times [2022-02-15 04:56:29,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:56:29,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475243681] [2022-02-15 04:56:29,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:56:39,853 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:56:39,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:56:39,860 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:56:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:56:39,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:56:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:56:39,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:56:39,988 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:56:39,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1475243681] [2022-02-15 04:56:39,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1475243681] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:56:39,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:56:39,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:56:39,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136165005] [2022-02-15 04:56:39,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:56:39,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:56:39,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:56:39,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:56:39,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:56:39,989 INFO L87 Difference]: Start difference. First operand 2003 states and 2933 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) [2022-02-15 04:56:41,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:56:42,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:56:44,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:56:46,640 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 [] [2022-02-15 04:56:47,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:56:47,369 INFO L93 Difference]: Finished difference Result 4047 states and 5935 transitions. [2022-02-15 04:56:47,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:56:47,370 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 230 [2022-02-15 04:56:47,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:56:47,377 INFO L225 Difference]: With dead ends: 4047 [2022-02-15 04:56:47,377 INFO L226 Difference]: Without dead ends: 2072 [2022-02-15 04:56:47,381 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 [2022-02-15 04:56:47,382 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 38 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-02-15 04:56:47,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 607 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-02-15 04:56:47,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2072 states. [2022-02-15 04:56:47,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2072 to 2003. [2022-02-15 04:56:47,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 1998 states have (on average 1.4639639639639639) internal successors, (2925), 1998 states have internal predecessors, (2925), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:56:47,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2929 transitions. [2022-02-15 04:56:47,531 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2929 transitions. Word has length 230 [2022-02-15 04:56:47,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:56:47,531 INFO L470 AbstractCegarLoop]: Abstraction has 2003 states and 2929 transitions. [2022-02-15 04:56:47,532 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) [2022-02-15 04:56:47,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2929 transitions. [2022-02-15 04:56:47,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-15 04:56:47,539 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:56:47,539 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:56:47,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-15 04:56:47,539 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:56:47,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:56:47,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1751943105, now seen corresponding path program 1 times [2022-02-15 04:56:47,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:56:47,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280410064] [2022-02-15 04:56:47,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:56:57,172 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:56:57,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:56:57,179 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:56:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:56:57,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:56:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:56:57,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:56:57,327 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:56:57,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [280410064] [2022-02-15 04:56:57,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [280410064] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:56:57,328 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:56:57,328 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:56:57,328 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060727980] [2022-02-15 04:56:57,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:56:57,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:56:57,328 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:56:57,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:56:57,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:56:57,329 INFO L87 Difference]: Start difference. First operand 2003 states and 2929 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:56:59,337 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 [] [2022-02-15 04:56:59,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:56:59,968 INFO L93 Difference]: Finished difference Result 4031 states and 5905 transitions. [2022-02-15 04:56:59,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:56:59,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 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 231 [2022-02-15 04:56:59,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:56:59,974 INFO L225 Difference]: With dead ends: 4031 [2022-02-15 04:56:59,974 INFO L226 Difference]: Without dead ends: 2056 [2022-02-15 04:56:59,977 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 [2022-02-15 04:56:59,978 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 32 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:56:59,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 599 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:56:59,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2056 states. [2022-02-15 04:57:00,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2056 to 2003. [2022-02-15 04:57:00,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 1998 states have (on average 1.461961961961962) internal successors, (2921), 1998 states have internal predecessors, (2921), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:57:00,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2925 transitions. [2022-02-15 04:57:00,109 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2925 transitions. Word has length 231 [2022-02-15 04:57:00,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:57:00,110 INFO L470 AbstractCegarLoop]: Abstraction has 2003 states and 2925 transitions. [2022-02-15 04:57:00,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:57:00,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2925 transitions. [2022-02-15 04:57:00,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-02-15 04:57:00,113 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:57:00,113 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, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:57:00,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-15 04:57:00,113 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:57:00,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:57:00,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1607990954, now seen corresponding path program 1 times [2022-02-15 04:57:00,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:57:00,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [541915863] [2022-02-15 04:57:00,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:57:00,153 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:57:00,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:57:00,162 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:57:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:57:00,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:57:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:57:00,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:57:00,267 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:57:00,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [541915863] [2022-02-15 04:57:00,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [541915863] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:57:00,267 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:57:00,268 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:57:00,268 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936967817] [2022-02-15 04:57:00,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:57:00,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:57:00,268 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:57:00,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:57:00,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:57:00,268 INFO L87 Difference]: Start difference. First operand 2003 states and 2925 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 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) [2022-02-15 04:57:02,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:57:03,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:57:05,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:57:06,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:57:06,591 INFO L93 Difference]: Finished difference Result 4464 states and 6533 transitions. [2022-02-15 04:57:06,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:57:06,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 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 233 [2022-02-15 04:57:06,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:57:06,598 INFO L225 Difference]: With dead ends: 4464 [2022-02-15 04:57:06,598 INFO L226 Difference]: Without dead ends: 2489 [2022-02-15 04:57:06,601 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 [2022-02-15 04:57:06,601 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 152 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-15 04:57:06,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 585 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-02-15 04:57:06,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2489 states. [2022-02-15 04:57:06,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2489 to 2489. [2022-02-15 04:57:06,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2489 states, 2484 states have (on average 1.461352657004831) internal successors, (3630), 2484 states have internal predecessors, (3630), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:57:06,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 3634 transitions. [2022-02-15 04:57:06,757 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 3634 transitions. Word has length 233 [2022-02-15 04:57:06,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:57:06,757 INFO L470 AbstractCegarLoop]: Abstraction has 2489 states and 3634 transitions. [2022-02-15 04:57:06,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 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) [2022-02-15 04:57:06,758 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 3634 transitions. [2022-02-15 04:57:06,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-02-15 04:57:06,761 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:57:06,761 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, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:57:06,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-15 04:57:06,761 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:57:06,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:57:06,762 INFO L85 PathProgramCache]: Analyzing trace with hash 164170661, now seen corresponding path program 1 times [2022-02-15 04:57:06,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:57:06,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [314426903] [2022-02-15 04:57:06,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:57:06,808 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:57:06,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:57:06,817 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:57:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:57:06,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:57:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:57:06,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:57:06,923 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:57:06,923 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [314426903] [2022-02-15 04:57:06,923 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [314426903] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:57:06,923 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:57:06,923 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:57:06,923 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208745599] [2022-02-15 04:57:06,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:57:06,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:57:06,924 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:57:06,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:57:06,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:57:06,925 INFO L87 Difference]: Start difference. First operand 2489 states and 3634 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:57:08,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:57:10,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:57:12,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:57:13,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:57:13,553 INFO L93 Difference]: Finished difference Result 5437 states and 7959 transitions. [2022-02-15 04:57:13,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:57:13,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 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 239 [2022-02-15 04:57:13,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:57:13,561 INFO L225 Difference]: With dead ends: 5437 [2022-02-15 04:57:13,561 INFO L226 Difference]: Without dead ends: 2976 [2022-02-15 04:57:13,566 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 [2022-02-15 04:57:13,567 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 162 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 18 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:57:13,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 383 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 259 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-02-15 04:57:13,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2022-02-15 04:57:13,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 2976. [2022-02-15 04:57:13,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2976 states, 2971 states have (on average 1.4631437226523056) internal successors, (4347), 2971 states have internal predecessors, (4347), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:57:13,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 4351 transitions. [2022-02-15 04:57:13,832 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 4351 transitions. Word has length 239 [2022-02-15 04:57:13,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:57:13,833 INFO L470 AbstractCegarLoop]: Abstraction has 2976 states and 4351 transitions. [2022-02-15 04:57:13,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:57:13,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 4351 transitions. [2022-02-15 04:57:13,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-02-15 04:57:13,837 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:57:13,837 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, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:57:13,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-15 04:57:13,838 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:57:13,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:57:13,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1635752059, now seen corresponding path program 1 times [2022-02-15 04:57:13,838 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:57:13,838 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996370725] [2022-02-15 04:57:13,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:57:13,906 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:57:13,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:57:13,918 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:57:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:57:14,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:57:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:57:14,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:57:14,049 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:57:14,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996370725] [2022-02-15 04:57:14,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [996370725] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:57:14,049 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:57:14,049 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:57:14,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801211023] [2022-02-15 04:57:14,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:57:14,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:57:14,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:57:14,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:57:14,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:57:14,050 INFO L87 Difference]: Start difference. First operand 2976 states and 4351 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 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) [2022-02-15 04:57:15,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:57:17,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:57:19,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:57:19,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:57:19,999 INFO L93 Difference]: Finished difference Result 6411 states and 9393 transitions. [2022-02-15 04:57:20,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:57:20,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 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 241 [2022-02-15 04:57:20,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:57:20,010 INFO L225 Difference]: With dead ends: 6411 [2022-02-15 04:57:20,010 INFO L226 Difference]: Without dead ends: 3463 [2022-02-15 04:57:20,017 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 [2022-02-15 04:57:20,017 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 163 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-15 04:57:20,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 382 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 259 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-02-15 04:57:20,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3463 states. [2022-02-15 04:57:20,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3463 to 3463. [2022-02-15 04:57:20,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 3458 states have (on average 1.4647194910352805) internal successors, (5065), 3458 states have internal predecessors, (5065), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:57:20,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 5069 transitions. [2022-02-15 04:57:20,326 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 5069 transitions. Word has length 241 [2022-02-15 04:57:20,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:57:20,326 INFO L470 AbstractCegarLoop]: Abstraction has 3463 states and 5069 transitions. [2022-02-15 04:57:20,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 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) [2022-02-15 04:57:20,327 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 5069 transitions. [2022-02-15 04:57:20,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-02-15 04:57:20,333 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:57:20,334 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:57:20,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-15 04:57:20,334 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:57:20,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:57:20,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1267934419, now seen corresponding path program 1 times [2022-02-15 04:57:20,334 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:57:20,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672806125] [2022-02-15 04:57:20,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:57:20,410 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:57:20,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:57:20,437 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:57:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:57:20,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:57:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:57:20,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:57:20,581 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:57:20,581 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672806125] [2022-02-15 04:57:20,581 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [672806125] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:57:20,582 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:57:20,582 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:57:20,582 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321695438] [2022-02-15 04:57:20,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:57:20,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:57:20,582 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:57:20,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:57:20,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:57:20,583 INFO L87 Difference]: Start difference. First operand 3463 states and 5069 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:57:22,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:57:24,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:57:25,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:57:25,511 INFO L93 Difference]: Finished difference Result 7380 states and 10822 transitions. [2022-02-15 04:57:25,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:57:25,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 274 [2022-02-15 04:57:25,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:57:25,517 INFO L225 Difference]: With dead ends: 7380 [2022-02-15 04:57:25,517 INFO L226 Difference]: Without dead ends: 3945 [2022-02-15 04:57:25,521 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 [2022-02-15 04:57:25,521 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-15 04:57:25,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 582 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 440 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-02-15 04:57:25,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3945 states. [2022-02-15 04:57:25,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3945 to 3945. [2022-02-15 04:57:25,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3945 states, 3940 states have (on average 1.4642131979695432) internal successors, (5769), 3940 states have internal predecessors, (5769), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:57:25,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3945 states to 3945 states and 5773 transitions. [2022-02-15 04:57:25,798 INFO L78 Accepts]: Start accepts. Automaton has 3945 states and 5773 transitions. Word has length 274 [2022-02-15 04:57:25,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:57:25,799 INFO L470 AbstractCegarLoop]: Abstraction has 3945 states and 5773 transitions. [2022-02-15 04:57:25,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:57:25,799 INFO L276 IsEmpty]: Start isEmpty. Operand 3945 states and 5773 transitions. [2022-02-15 04:57:25,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-02-15 04:57:25,803 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:57:25,804 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:57:25,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-15 04:57:25,804 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:57:25,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:57:25,804 INFO L85 PathProgramCache]: Analyzing trace with hash -103872879, now seen corresponding path program 1 times [2022-02-15 04:57:25,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:57:25,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1934550232] [2022-02-15 04:57:25,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:57:25,860 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:57:25,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:57:25,869 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:57:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:57:26,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:57:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:57:26,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:57:26,004 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:57:26,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1934550232] [2022-02-15 04:57:26,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1934550232] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:57:26,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:57:26,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:57:26,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707041045] [2022-02-15 04:57:26,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:57:26,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:57:26,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:57:26,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:57:26,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:57:26,007 INFO L87 Difference]: Start difference. First operand 3945 states and 5773 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:57:27,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:57:29,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:57:31,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:57:32,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:57:32,589 INFO L93 Difference]: Finished difference Result 8316 states and 12189 transitions. [2022-02-15 04:57:32,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:57:32,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (3), 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 274 [2022-02-15 04:57:32,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:57:32,596 INFO L225 Difference]: With dead ends: 8316 [2022-02-15 04:57:32,596 INFO L226 Difference]: Without dead ends: 4399 [2022-02-15 04:57:32,603 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 [2022-02-15 04:57:32,603 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 152 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-15 04:57:32,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 585 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-02-15 04:57:32,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4399 states. [2022-02-15 04:57:32,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4399 to 4399. [2022-02-15 04:57:32,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4399 states, 4394 states have (on average 1.4635867091488393) internal successors, (6431), 4394 states have internal predecessors, (6431), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:57:32,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4399 states to 4399 states and 6435 transitions. [2022-02-15 04:57:32,928 INFO L78 Accepts]: Start accepts. Automaton has 4399 states and 6435 transitions. Word has length 274 [2022-02-15 04:57:32,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:57:32,928 INFO L470 AbstractCegarLoop]: Abstraction has 4399 states and 6435 transitions. [2022-02-15 04:57:32,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:57:32,928 INFO L276 IsEmpty]: Start isEmpty. Operand 4399 states and 6435 transitions. [2022-02-15 04:57:32,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-02-15 04:57:32,935 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:57:32,935 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, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:57:32,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-15 04:57:32,935 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:57:32,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:57:32,936 INFO L85 PathProgramCache]: Analyzing trace with hash -312990784, now seen corresponding path program 1 times [2022-02-15 04:57:32,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:57:32,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [150984892] [2022-02-15 04:57:32,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:57:45,181 WARN L228 SmtUtils]: Spent 7.47s on a formula simplification. DAG size of input: 277 DAG size of output: 223 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:57:55,177 WARN L228 SmtUtils]: Spent 6.44s on a formula simplification. DAG size of input: 279 DAG size of output: 225 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:58:02,429 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:58:02,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:58:02,441 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:58:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:58:02,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:58:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:58:02,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:58:02,666 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:58:02,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [150984892] [2022-02-15 04:58:02,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [150984892] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:58:02,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:58:02,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:58:02,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134421264] [2022-02-15 04:58:02,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:58:02,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:58:02,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:58:02,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:58:02,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:58:02,667 INFO L87 Difference]: Start difference. First operand 4399 states and 6435 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 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) [2022-02-15 04:58:04,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:58:06,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:58:08,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:58:09,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:58:09,309 INFO L93 Difference]: Finished difference Result 9257 states and 13561 transitions. [2022-02-15 04:58:09,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:58:09,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 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 348 [2022-02-15 04:58:09,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:58:09,320 INFO L225 Difference]: With dead ends: 9257 [2022-02-15 04:58:09,320 INFO L226 Difference]: Without dead ends: 4886 [2022-02-15 04:58:09,330 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 [2022-02-15 04:58:09,330 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 154 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 22 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-15 04:58:09,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 379 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 259 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-02-15 04:58:09,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4886 states. [2022-02-15 04:58:09,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4886 to 4886. [2022-02-15 04:58:09,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4886 states, 4881 states have (on average 1.4652735095267364) internal successors, (7152), 4881 states have internal predecessors, (7152), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:58:09,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4886 states to 4886 states and 7156 transitions. [2022-02-15 04:58:09,766 INFO L78 Accepts]: Start accepts. Automaton has 4886 states and 7156 transitions. Word has length 348 [2022-02-15 04:58:09,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:58:09,767 INFO L470 AbstractCegarLoop]: Abstraction has 4886 states and 7156 transitions. [2022-02-15 04:58:09,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 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) [2022-02-15 04:58:09,767 INFO L276 IsEmpty]: Start isEmpty. Operand 4886 states and 7156 transitions. [2022-02-15 04:58:09,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-02-15 04:58:09,776 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:58:09,776 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:58:09,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-15 04:58:09,776 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:58:09,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:58:09,776 INFO L85 PathProgramCache]: Analyzing trace with hash 231262438, now seen corresponding path program 1 times [2022-02-15 04:58:09,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:58:09,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521429654] [2022-02-15 04:58:09,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:58:24,453 WARN L228 SmtUtils]: Spent 6.82s on a formula simplification. DAG size of input: 277 DAG size of output: 223 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:58:34,114 WARN L228 SmtUtils]: Spent 6.54s on a formula simplification. DAG size of input: 279 DAG size of output: 225 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:58:43,813 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:58:43,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:58:43,823 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:58:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:58:43,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:58:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:58:43,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:58:43,990 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:58:43,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1521429654] [2022-02-15 04:58:43,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1521429654] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:58:43,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:58:43,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:58:43,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192883173] [2022-02-15 04:58:43,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:58:43,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:58:43,992 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:58:43,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:58:43,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:58:43,992 INFO L87 Difference]: Start difference. First operand 4886 states and 7156 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 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) [2022-02-15 04:58:46,910 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 [] [2022-02-15 04:58:48,942 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 [] [2022-02-15 04:58:49,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:58:49,644 INFO L93 Difference]: Finished difference Result 5375 states and 7880 transitions. [2022-02-15 04:58:49,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:58:49,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 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 389 [2022-02-15 04:58:49,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:58:49,651 INFO L225 Difference]: With dead ends: 5375 [2022-02-15 04:58:49,651 INFO L226 Difference]: Without dead ends: 5373 [2022-02-15 04:58:49,652 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 [2022-02-15 04:58:49,652 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 155 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 23 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-15 04:58:49,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 378 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 259 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2022-02-15 04:58:49,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5373 states. [2022-02-15 04:58:50,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5373 to 5373. [2022-02-15 04:58:50,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5373 states, 5368 states have (on average 1.4668405365126678) internal successors, (7874), 5368 states have internal predecessors, (7874), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:58:50,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5373 states to 5373 states and 7878 transitions. [2022-02-15 04:58:50,049 INFO L78 Accepts]: Start accepts. Automaton has 5373 states and 7878 transitions. Word has length 389 [2022-02-15 04:58:50,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:58:50,050 INFO L470 AbstractCegarLoop]: Abstraction has 5373 states and 7878 transitions. [2022-02-15 04:58:50,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 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) [2022-02-15 04:58:50,050 INFO L276 IsEmpty]: Start isEmpty. Operand 5373 states and 7878 transitions. [2022-02-15 04:58:50,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-02-15 04:58:50,058 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:58:50,058 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:58:50,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-15 04:58:50,059 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:58:50,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:58:50,059 INFO L85 PathProgramCache]: Analyzing trace with hash 64201882, now seen corresponding path program 1 times [2022-02-15 04:58:50,059 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:58:50,059 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [959694554] [2022-02-15 04:58:50,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:58:50,257 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:58:50,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:58:50,279 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:58:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:58:50,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:58:50,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:58:50,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:58:50,482 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:58:50,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [959694554] [2022-02-15 04:58:50,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [959694554] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:58:50,483 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:58:50,483 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:58:50,483 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317988079] [2022-02-15 04:58:50,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:58:50,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:58:50,483 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:58:50,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:58:50,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:58:50,484 INFO L87 Difference]: Start difference. First operand 5373 states and 7878 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:58:52,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:58:54,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:58:56,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:58:58,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:58:58,380 INFO L93 Difference]: Finished difference Result 11587 states and 16955 transitions. [2022-02-15 04:58:58,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:58:58,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 1 states have call successors, (3), 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 397 [2022-02-15 04:58:58,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:58:58,390 INFO L225 Difference]: With dead ends: 11587 [2022-02-15 04:58:58,390 INFO L226 Difference]: Without dead ends: 6242 [2022-02-15 04:58:58,399 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 [2022-02-15 04:58:58,400 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 62 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:58:58,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 659 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 578 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-02-15 04:58:58,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6242 states. [2022-02-15 04:58:58,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6242 to 5824. [2022-02-15 04:58:58,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5824 states, 5819 states have (on average 1.4684653720570544) internal successors, (8545), 5819 states have internal predecessors, (8545), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:58:58,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5824 states to 5824 states and 8549 transitions. [2022-02-15 04:58:58,874 INFO L78 Accepts]: Start accepts. Automaton has 5824 states and 8549 transitions. Word has length 397 [2022-02-15 04:58:58,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:58:58,874 INFO L470 AbstractCegarLoop]: Abstraction has 5824 states and 8549 transitions. [2022-02-15 04:58:58,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:58:58,874 INFO L276 IsEmpty]: Start isEmpty. Operand 5824 states and 8549 transitions. [2022-02-15 04:58:58,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-02-15 04:58:58,882 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:58:58,882 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:58:58,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-15 04:58:58,883 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:58:58,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:58:58,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1011239768, now seen corresponding path program 1 times [2022-02-15 04:58:58,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:58:58,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [383463519] [2022-02-15 04:58:58,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:58:59,031 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:58:59,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:58:59,044 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:58:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:58:59,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:58:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:58:59,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:58:59,617 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:58:59,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [383463519] [2022-02-15 04:58:59,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [383463519] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:58:59,617 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:58:59,617 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 04:58:59,617 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726587163] [2022-02-15 04:58:59,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:58:59,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 04:58:59,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:58:59,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 04:58:59,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-15 04:58:59,618 INFO L87 Difference]: Start difference. First operand 5824 states and 8549 transitions. Second operand has 7 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-02-15 04:59:01,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:59:03,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:59:05,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:59:07,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:59:09,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:59:10,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:59:11,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:59:11,518 INFO L93 Difference]: Finished difference Result 11641 states and 17090 transitions. [2022-02-15 04:59:11,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 04:59:11,519 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 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 397 [2022-02-15 04:59:11,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:59:11,534 INFO L225 Difference]: With dead ends: 11641 [2022-02-15 04:59:11,534 INFO L226 Difference]: Without dead ends: 5824 [2022-02-15 04:59:11,541 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 [2022-02-15 04:59:11,541 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 7 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:59:11,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 872 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 448 Invalid, 2 Unknown, 0 Unchecked, 11.3s Time] [2022-02-15 04:59:11,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5824 states. [2022-02-15 04:59:12,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5824 to 5824. [2022-02-15 04:59:12,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5824 states, 5819 states have (on average 1.468293521223578) internal successors, (8544), 5819 states have internal predecessors, (8544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:59:12,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5824 states to 5824 states and 8548 transitions. [2022-02-15 04:59:12,031 INFO L78 Accepts]: Start accepts. Automaton has 5824 states and 8548 transitions. Word has length 397 [2022-02-15 04:59:12,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:59:12,032 INFO L470 AbstractCegarLoop]: Abstraction has 5824 states and 8548 transitions. [2022-02-15 04:59:12,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-02-15 04:59:12,032 INFO L276 IsEmpty]: Start isEmpty. Operand 5824 states and 8548 transitions. [2022-02-15 04:59:12,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-02-15 04:59:12,041 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:59:12,041 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:59:12,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-15 04:59:12,042 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:59:12,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:59:12,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1462476326, now seen corresponding path program 1 times [2022-02-15 04:59:12,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:59:12,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973639387] [2022-02-15 04:59:12,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:59:12,171 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:59:12,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:59:12,186 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:59:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:59:13,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:59:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:59:13,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:59:13,992 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:59:13,992 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973639387] [2022-02-15 04:59:13,992 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [973639387] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:59:13,992 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:59:13,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-15 04:59:13,993 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972019179] [2022-02-15 04:59:13,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:59:13,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-15 04:59:13,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:59:13,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-15 04:59:13,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2022-02-15 04:59:13,994 INFO L87 Difference]: Start difference. First operand 5824 states and 8548 transitions. Second operand has 25 states, 24 states have (on average 13.541666666666666) internal successors, (325), 23 states have internal predecessors, (325), 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) [2022-02-15 04:59:16,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:59:18,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:59:20,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:59:21,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:59:23,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:59:25,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:59:27,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:59:30,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:59:32,357 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 [] [2022-02-15 04:59:51,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:59:51,954 INFO L93 Difference]: Finished difference Result 54569 states and 78794 transitions. [2022-02-15 04:59:51,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-02-15 04:59:51,954 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 13.541666666666666) internal successors, (325), 23 states have internal predecessors, (325), 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 397 [2022-02-15 04:59:51,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:59:52,032 INFO L225 Difference]: With dead ends: 54569 [2022-02-15 04:59:52,032 INFO L226 Difference]: Without dead ends: 48773 [2022-02-15 04:59:52,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5142 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2541, Invalid=12711, Unknown=0, NotChecked=0, Total=15252 [2022-02-15 04:59:52,057 INFO L933 BasicCegarLoop]: 454 mSDtfsCounter, 4640 mSDsluCounter, 7154 mSDsCounter, 0 mSdLazyCounter, 7694 mSolverCounterSat, 1072 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4640 SdHoareTripleChecker+Valid, 7608 SdHoareTripleChecker+Invalid, 8772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1072 IncrementalHoareTripleChecker+Valid, 7694 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:59:52,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4640 Valid, 7608 Invalid, 8772 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1072 Valid, 7694 Invalid, 6 Unknown, 0 Unchecked, 28.4s Time] [2022-02-15 04:59:52,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48773 states. [2022-02-15 04:59:55,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48773 to 23387. [2022-02-15 04:59:55,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23387 states, 23382 states have (on average 1.4661277906081602) internal successors, (34281), 23382 states have internal predecessors, (34281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:59:55,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23387 states to 23387 states and 34285 transitions. [2022-02-15 04:59:55,726 INFO L78 Accepts]: Start accepts. Automaton has 23387 states and 34285 transitions. Word has length 397 [2022-02-15 04:59:55,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:59:55,727 INFO L470 AbstractCegarLoop]: Abstraction has 23387 states and 34285 transitions. [2022-02-15 04:59:55,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 13.541666666666666) internal successors, (325), 23 states have internal predecessors, (325), 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) [2022-02-15 04:59:55,727 INFO L276 IsEmpty]: Start isEmpty. Operand 23387 states and 34285 transitions. [2022-02-15 04:59:55,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2022-02-15 04:59:55,757 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:59:55,757 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:59:55,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-15 04:59:55,757 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:59:55,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:59:55,758 INFO L85 PathProgramCache]: Analyzing trace with hash -2094080550, now seen corresponding path program 1 times [2022-02-15 04:59:55,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:59:55,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050551826] [2022-02-15 04:59:55,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:59:55,903 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:59:55,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:59:55,914 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:59:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:59:56,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:59:56,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:59:56,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:59:56,137 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:59:56,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2050551826] [2022-02-15 04:59:56,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2050551826] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:59:56,137 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:59:56,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:59:56,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425167083] [2022-02-15 04:59:56,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:59:56,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:59:56,138 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:59:56,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:59:56,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:59:56,139 INFO L87 Difference]: Start difference. First operand 23387 states and 34285 transitions. Second operand has 5 states, 5 states have (on average 37.6) internal successors, (188), 4 states have internal predecessors, (188), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:59:58,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:00:02,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 05:00:02,896 INFO L93 Difference]: Finished difference Result 48418 states and 70769 transitions. [2022-02-15 05:00:02,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 05:00:02,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 4 states have internal predecessors, (188), 1 states have call successors, (3), 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 398 [2022-02-15 05:00:02,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 05:00:02,952 INFO L225 Difference]: With dead ends: 48418 [2022-02-15 05:00:02,952 INFO L226 Difference]: Without dead ends: 25059 [2022-02-15 05:00:02,993 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 [2022-02-15 05:00:02,994 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 60 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 05:00:02,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 655 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 569 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 05:00:03,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25059 states. [2022-02-15 05:00:06,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25059 to 23427. [2022-02-15 05:00:06,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23427 states, 23422 states have (on average 1.4653317393903167) internal successors, (34321), 23422 states have internal predecessors, (34321), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:00:06,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23427 states to 23427 states and 34325 transitions. [2022-02-15 05:00:06,828 INFO L78 Accepts]: Start accepts. Automaton has 23427 states and 34325 transitions. Word has length 398 [2022-02-15 05:00:06,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 05:00:06,828 INFO L470 AbstractCegarLoop]: Abstraction has 23427 states and 34325 transitions. [2022-02-15 05:00:06,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 4 states have internal predecessors, (188), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:00:06,829 INFO L276 IsEmpty]: Start isEmpty. Operand 23427 states and 34325 transitions. [2022-02-15 05:00:06,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2022-02-15 05:00:06,864 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 05:00:06,864 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 05:00:06,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-15 05:00:06,864 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 05:00:06,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 05:00:06,865 INFO L85 PathProgramCache]: Analyzing trace with hash -154157264, now seen corresponding path program 1 times [2022-02-15 05:00:06,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 05:00:06,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291265311] [2022-02-15 05:00:06,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 05:00:06,976 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 05:00:06,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 05:00:07,091 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 05:00:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 05:00:07,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 05:00:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 05:00:07,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 05:00:07,306 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 05:00:07,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291265311] [2022-02-15 05:00:07,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1291265311] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 05:00:07,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 05:00:07,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 05:00:07,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581853267] [2022-02-15 05:00:07,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 05:00:07,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 05:00:07,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 05:00:07,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 05:00:07,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 05:00:07,307 INFO L87 Difference]: Start difference. First operand 23427 states and 34325 transitions. Second operand has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 5 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) [2022-02-15 05:00:10,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:00:12,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:00:14,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:00:18,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 05:00:18,919 INFO L93 Difference]: Finished difference Result 47790 states and 70018 transitions. [2022-02-15 05:00:18,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 05:00:18,919 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 5 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 398 [2022-02-15 05:00:18,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 05:00:18,967 INFO L225 Difference]: With dead ends: 47790 [2022-02-15 05:00:18,968 INFO L226 Difference]: Without dead ends: 24391 [2022-02-15 05:00:18,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-02-15 05:00:18,999 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 52 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-02-15 05:00:18,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 760 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 665 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-02-15 05:00:19,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24391 states. [2022-02-15 05:00:22,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24391 to 23768. [2022-02-15 05:00:22,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23768 states, 23763 states have (on average 1.4653873669149518) internal successors, (34822), 23763 states have internal predecessors, (34822), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:00:22,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23768 states to 23768 states and 34826 transitions. [2022-02-15 05:00:22,496 INFO L78 Accepts]: Start accepts. Automaton has 23768 states and 34826 transitions. Word has length 398 [2022-02-15 05:00:22,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 05:00:22,497 INFO L470 AbstractCegarLoop]: Abstraction has 23768 states and 34826 transitions. [2022-02-15 05:00:22,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 5 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) [2022-02-15 05:00:22,497 INFO L276 IsEmpty]: Start isEmpty. Operand 23768 states and 34826 transitions. [2022-02-15 05:00:22,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-02-15 05:00:22,524 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 05:00:22,524 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 05:00:22,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-15 05:00:22,524 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 05:00:22,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 05:00:22,524 INFO L85 PathProgramCache]: Analyzing trace with hash 231774640, now seen corresponding path program 1 times [2022-02-15 05:00:22,524 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 05:00:22,525 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440155218] [2022-02-15 05:00:22,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 05:00:40,365 WARN L228 SmtUtils]: Spent 7.72s on a formula simplification. DAG size of input: 277 DAG size of output: 223 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 05:00:49,376 WARN L228 SmtUtils]: Spent 6.01s on a formula simplification. DAG size of input: 279 DAG size of output: 225 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 05:01:00,607 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 05:01:00,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 05:01:00,618 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 05:01:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 05:01:00,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 05:01:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 05:01:00,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 05:01:00,800 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 05:01:00,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440155218] [2022-02-15 05:01:00,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [440155218] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 05:01:00,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 05:01:00,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 05:01:00,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519202787] [2022-02-15 05:01:00,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 05:01:00,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 05:01:00,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 05:01:00,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 05:01:00,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 05:01:00,803 INFO L87 Difference]: Start difference. First operand 23768 states and 34826 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:01:02,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:01:04,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:01:06,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:01:10,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 05:01:10,915 INFO L93 Difference]: Finished difference Result 49140 states and 71771 transitions. [2022-02-15 05:01:10,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 05:01:10,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 1 states have call successors, (3), 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 419 [2022-02-15 05:01:10,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 05:01:10,957 INFO L225 Difference]: With dead ends: 49140 [2022-02-15 05:01:10,957 INFO L226 Difference]: Without dead ends: 25400 [2022-02-15 05:01:10,989 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 [2022-02-15 05:01:10,989 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 79 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-15 05:01:10,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 653 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 570 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-02-15 05:01:11,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25400 states. [2022-02-15 05:01:14,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25400 to 23768. [2022-02-15 05:01:14,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23768 states, 23763 states have (on average 1.4633253377098852) internal successors, (34773), 23763 states have internal predecessors, (34773), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:01:14,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23768 states to 23768 states and 34777 transitions. [2022-02-15 05:01:14,374 INFO L78 Accepts]: Start accepts. Automaton has 23768 states and 34777 transitions. Word has length 419 [2022-02-15 05:01:14,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 05:01:14,375 INFO L470 AbstractCegarLoop]: Abstraction has 23768 states and 34777 transitions. [2022-02-15 05:01:14,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:01:14,375 INFO L276 IsEmpty]: Start isEmpty. Operand 23768 states and 34777 transitions. [2022-02-15 05:01:14,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2022-02-15 05:01:14,399 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 05:01:14,399 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 05:01:14,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-15 05:01:14,399 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 05:01:14,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 05:01:14,400 INFO L85 PathProgramCache]: Analyzing trace with hash -55380156, now seen corresponding path program 1 times [2022-02-15 05:01:14,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 05:01:14,400 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [232082187] [2022-02-15 05:01:14,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 05:01:31,460 WARN L228 SmtUtils]: Spent 6.45s on a formula simplification. DAG size of input: 277 DAG size of output: 223 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 05:01:40,359 WARN L228 SmtUtils]: Spent 6.80s on a formula simplification. DAG size of input: 279 DAG size of output: 225 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 05:01:51,138 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 05:01:51,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 05:01:51,151 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 05:01:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 05:01:51,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 05:01:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 05:01:51,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 05:01:51,298 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 05:01:51,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [232082187] [2022-02-15 05:01:51,298 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [232082187] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 05:01:51,298 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 05:01:51,299 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 05:01:51,299 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337686446] [2022-02-15 05:01:51,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 05:01:51,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 05:01:51,299 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 05:01:51,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 05:01:51,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 05:01:51,299 INFO L87 Difference]: Start difference. First operand 23768 states and 34777 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:01:52,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:01:54,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:01:56,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:01:58,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:02:03,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 05:02:03,057 INFO L93 Difference]: Finished difference Result 48796 states and 71301 transitions. [2022-02-15 05:02:03,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 05:02:03,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 420 [2022-02-15 05:02:03,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 05:02:03,108 INFO L225 Difference]: With dead ends: 48796 [2022-02-15 05:02:03,108 INFO L226 Difference]: Without dead ends: 25056 [2022-02-15 05:02:03,147 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 [2022-02-15 05:02:03,147 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 119 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 54 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-02-15 05:02:03,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 382 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 463 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-02-15 05:02:03,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25056 states. [2022-02-15 05:02:06,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25056 to 23636. [2022-02-15 05:02:06,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23636 states, 23631 states have (on average 1.4528373746350134) internal successors, (34332), 23631 states have internal predecessors, (34332), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:02:06,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23636 states to 23636 states and 34336 transitions. [2022-02-15 05:02:06,622 INFO L78 Accepts]: Start accepts. Automaton has 23636 states and 34336 transitions. Word has length 420 [2022-02-15 05:02:06,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 05:02:06,622 INFO L470 AbstractCegarLoop]: Abstraction has 23636 states and 34336 transitions. [2022-02-15 05:02:06,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:02:06,622 INFO L276 IsEmpty]: Start isEmpty. Operand 23636 states and 34336 transitions. [2022-02-15 05:02:06,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2022-02-15 05:02:06,647 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 05:02:06,647 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 05:02:06,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-15 05:02:06,647 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 05:02:06,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 05:02:06,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1468950775, now seen corresponding path program 1 times [2022-02-15 05:02:06,648 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 05:02:06,648 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [297739303] [2022-02-15 05:02:06,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 05:02:23,085 WARN L228 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 277 DAG size of output: 223 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 05:02:32,973 WARN L228 SmtUtils]: Spent 7.12s on a formula simplification. DAG size of input: 279 DAG size of output: 225 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 05:02:43,618 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 05:02:43,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 05:02:43,633 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 05:02:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 05:02:43,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 05:02:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 05:02:43,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 05:02:43,811 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 05:02:43,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [297739303] [2022-02-15 05:02:43,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [297739303] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 05:02:43,811 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 05:02:43,811 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 05:02:43,811 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999448671] [2022-02-15 05:02:43,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 05:02:43,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 05:02:43,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 05:02:43,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 05:02:43,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 05:02:43,812 INFO L87 Difference]: Start difference. First operand 23636 states and 34336 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:02:45,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:02:47,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:02:49,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:02:51,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:02:55,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 05:02:55,598 INFO L93 Difference]: Finished difference Result 48440 states and 70192 transitions. [2022-02-15 05:02:55,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 05:02:55,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (3), 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 420 [2022-02-15 05:02:55,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 05:02:55,641 INFO L225 Difference]: With dead ends: 48440 [2022-02-15 05:02:55,642 INFO L226 Difference]: Without dead ends: 24832 [2022-02-15 05:02:55,674 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 [2022-02-15 05:02:55,674 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 72 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-02-15 05:02:55,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 643 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 553 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-02-15 05:02:55,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24832 states. [2022-02-15 05:02:59,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24832 to 23636. [2022-02-15 05:02:59,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23636 states, 23631 states have (on average 1.450763827176167) internal successors, (34283), 23631 states have internal predecessors, (34283), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:02:59,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23636 states to 23636 states and 34287 transitions. [2022-02-15 05:02:59,230 INFO L78 Accepts]: Start accepts. Automaton has 23636 states and 34287 transitions. Word has length 420 [2022-02-15 05:02:59,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 05:02:59,230 INFO L470 AbstractCegarLoop]: Abstraction has 23636 states and 34287 transitions. [2022-02-15 05:02:59,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:02:59,231 INFO L276 IsEmpty]: Start isEmpty. Operand 23636 states and 34287 transitions. [2022-02-15 05:02:59,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2022-02-15 05:02:59,256 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 05:02:59,256 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 05:02:59,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-15 05:02:59,256 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 05:02:59,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 05:02:59,257 INFO L85 PathProgramCache]: Analyzing trace with hash 301491870, now seen corresponding path program 1 times [2022-02-15 05:02:59,257 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 05:02:59,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485483455] [2022-02-15 05:02:59,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 05:03:14,953 WARN L228 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 277 DAG size of output: 223 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 05:03:24,597 WARN L228 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 279 DAG size of output: 225 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 05:03:35,317 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 05:03:35,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 05:03:35,332 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 05:03:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 05:03:35,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 05:03:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 05:03:35,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 05:03:35,488 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 05:03:35,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1485483455] [2022-02-15 05:03:35,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1485483455] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 05:03:35,488 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 05:03:35,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 05:03:35,488 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365083039] [2022-02-15 05:03:35,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 05:03:35,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 05:03:35,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 05:03:35,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 05:03:35,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 05:03:35,489 INFO L87 Difference]: Start difference. First operand 23636 states and 34287 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:03:37,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:03:39,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:03:41,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:03:45,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 05:03:45,869 INFO L93 Difference]: Finished difference Result 48018 states and 69673 transitions. [2022-02-15 05:03:45,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 05:03:45,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 422 [2022-02-15 05:03:45,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 05:03:45,902 INFO L225 Difference]: With dead ends: 48018 [2022-02-15 05:03:45,903 INFO L226 Difference]: Without dead ends: 24410 [2022-02-15 05:03:45,924 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 [2022-02-15 05:03:45,924 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 36 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-15 05:03:45,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 610 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 481 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-02-15 05:03:45,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24410 states. [2022-02-15 05:03:49,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24410 to 23614. [2022-02-15 05:03:49,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23614 states, 23609 states have (on average 1.4493201745097208) internal successors, (34217), 23609 states have internal predecessors, (34217), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:03:49,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23614 states to 23614 states and 34221 transitions. [2022-02-15 05:03:49,437 INFO L78 Accepts]: Start accepts. Automaton has 23614 states and 34221 transitions. Word has length 422 [2022-02-15 05:03:49,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 05:03:49,437 INFO L470 AbstractCegarLoop]: Abstraction has 23614 states and 34221 transitions. [2022-02-15 05:03:49,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:03:49,437 INFO L276 IsEmpty]: Start isEmpty. Operand 23614 states and 34221 transitions. [2022-02-15 05:03:49,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-02-15 05:03:49,462 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 05:03:49,463 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 8, 8, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 05:03:49,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-15 05:03:49,463 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 05:03:49,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 05:03:49,463 INFO L85 PathProgramCache]: Analyzing trace with hash -190462006, now seen corresponding path program 1 times [2022-02-15 05:03:49,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 05:03:49,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1784011207] [2022-02-15 05:03:49,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 05:03:49,564 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 05:03:49,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 05:03:49,577 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 05:03:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 05:03:50,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 05:03:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 05:03:50,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 05:03:50,489 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 05:03:50,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1784011207] [2022-02-15 05:03:50,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1784011207] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 05:03:50,489 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 05:03:50,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-02-15 05:03:50,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253263816] [2022-02-15 05:03:50,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 05:03:50,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-15 05:03:50,490 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 05:03:50,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-15 05:03:50,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2022-02-15 05:03:50,491 INFO L87 Difference]: Start difference. First operand 23614 states and 34221 transitions. Second operand has 17 states, 17 states have (on average 16.58823529411765) internal successors, (282), 16 states have internal predecessors, (282), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:03:52,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:03:54,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:03:56,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:03:58,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:04:00,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:04:01,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:04:03,837 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:04:05,546 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:04:06,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:04:28,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 05:04:28,329 INFO L93 Difference]: Finished difference Result 110360 states and 158356 transitions. [2022-02-15 05:04:28,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 05:04:28,330 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 16.58823529411765) internal successors, (282), 16 states have internal predecessors, (282), 1 states have call successors, (3), 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 426 [2022-02-15 05:04:28,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 05:04:28,495 INFO L225 Difference]: With dead ends: 110360 [2022-02-15 05:04:28,496 INFO L226 Difference]: Without dead ends: 86774 [2022-02-15 05:04:28,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 738 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=576, Invalid=1974, Unknown=0, NotChecked=0, Total=2550 [2022-02-15 05:04:28,538 INFO L933 BasicCegarLoop]: 360 mSDtfsCounter, 1457 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 3745 mSolverCounterSat, 290 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 3309 SdHoareTripleChecker+Invalid, 4039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 3745 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2022-02-15 05:04:28,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1457 Valid, 3309 Invalid, 4039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 3745 Invalid, 4 Unknown, 0 Unchecked, 20.1s Time] [2022-02-15 05:04:28,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86774 states. [2022-02-15 05:04:39,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86774 to 59522. [2022-02-15 05:04:40,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59522 states, 59517 states have (on average 1.4444780482887243) internal successors, (85971), 59517 states have internal predecessors, (85971), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:04:40,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59522 states to 59522 states and 85975 transitions. [2022-02-15 05:04:40,118 INFO L78 Accepts]: Start accepts. Automaton has 59522 states and 85975 transitions. Word has length 426 [2022-02-15 05:04:40,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 05:04:40,118 INFO L470 AbstractCegarLoop]: Abstraction has 59522 states and 85975 transitions. [2022-02-15 05:04:40,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 16.58823529411765) internal successors, (282), 16 states have internal predecessors, (282), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:04:40,118 INFO L276 IsEmpty]: Start isEmpty. Operand 59522 states and 85975 transitions. [2022-02-15 05:04:40,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-02-15 05:04:40,194 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 05:04:40,194 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 8, 8, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 05:04:40,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-15 05:04:40,194 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 05:04:40,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 05:04:40,194 INFO L85 PathProgramCache]: Analyzing trace with hash -636368426, now seen corresponding path program 2 times [2022-02-15 05:04:40,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 05:04:40,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352712497] [2022-02-15 05:04:40,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 05:04:40,309 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 05:04:40,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 05:04:40,325 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 05:04:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 05:04:41,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 05:04:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 05:04:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 05:04:41,407 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 05:04:41,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352712497] [2022-02-15 05:04:41,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1352712497] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 05:04:41,408 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 05:04:41,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-02-15 05:04:41,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747139886] [2022-02-15 05:04:41,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 05:04:41,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-15 05:04:41,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 05:04:41,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-15 05:04:41,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2022-02-15 05:04:41,409 INFO L87 Difference]: Start difference. First operand 59522 states and 85975 transitions. Second operand has 17 states, 17 states have (on average 16.352941176470587) internal successors, (278), 16 states have internal predecessors, (278), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:04:44,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:04:46,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:04:48,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:04:50,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:04:52,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:04:53,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:05:53,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 05:05:53,221 INFO L93 Difference]: Finished difference Result 287140 states and 412303 transitions. [2022-02-15 05:05:53,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-15 05:05:53,222 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 16.352941176470587) internal successors, (278), 16 states have internal predecessors, (278), 1 states have call successors, (3), 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 426 [2022-02-15 05:05:53,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 05:05:53,975 INFO L225 Difference]: With dead ends: 287140 [2022-02-15 05:05:53,975 INFO L226 Difference]: Without dead ends: 227646 [2022-02-15 05:05:54,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=703, Invalid=2377, Unknown=0, NotChecked=0, Total=3080 [2022-02-15 05:05:54,101 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 2500 mSDsluCounter, 3358 mSDsCounter, 0 mSdLazyCounter, 4065 mSolverCounterSat, 619 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2500 SdHoareTripleChecker+Valid, 3758 SdHoareTripleChecker+Invalid, 4687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 619 IncrementalHoareTripleChecker+Valid, 4065 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-02-15 05:05:54,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2500 Valid, 3758 Invalid, 4687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [619 Valid, 4065 Invalid, 3 Unknown, 0 Unchecked, 17.4s Time] [2022-02-15 05:05:54,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227646 states. [2022-02-15 05:06:36,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227646 to 194860. [2022-02-15 05:06:37,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194860 states, 194855 states have (on average 1.44228785507172) internal successors, (281037), 194855 states have internal predecessors, (281037), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:06:37,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194860 states to 194860 states and 281041 transitions. [2022-02-15 05:06:37,972 INFO L78 Accepts]: Start accepts. Automaton has 194860 states and 281041 transitions. Word has length 426 [2022-02-15 05:06:37,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 05:06:37,973 INFO L470 AbstractCegarLoop]: Abstraction has 194860 states and 281041 transitions. [2022-02-15 05:06:37,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 16.352941176470587) internal successors, (278), 16 states have internal predecessors, (278), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 05:06:37,973 INFO L276 IsEmpty]: Start isEmpty. Operand 194860 states and 281041 transitions. [2022-02-15 05:06:38,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-02-15 05:06:38,210 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 05:06:38,210 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 8, 8, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 05:06:38,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-15 05:06:38,211 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 05:06:38,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 05:06:38,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1128994600, now seen corresponding path program 1 times [2022-02-15 05:06:38,211 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 05:06:38,211 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270615771] [2022-02-15 05:06:38,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 05:06:38,489 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 05:06:38,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 05:06:38,510 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 05:06:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 05:06:39,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 05:06:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 05:06:39,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 05:06:39,991 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 05:06:39,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270615771] [2022-02-15 05:06:39,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1270615771] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 05:06:39,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 05:06:39,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 05:06:39,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112055583] [2022-02-15 05:06:39,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 05:06:39,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 05:06:39,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 05:06:39,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 05:06:39,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-02-15 05:06:39,992 INFO L87 Difference]: Start difference. First operand 194860 states and 281041 transitions. Second operand has 12 states, 11 states have (on average 18.0) internal successors, (198), 10 states have internal predecessors, (198), 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) [2022-02-15 05:06:41,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:06:43,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:06:45,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:06:47,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 05:06:50,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []