/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.03.i.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 04:43:40,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 04:43:40,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 04:43:40,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-24 04:43:40,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-24 04:43:40,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-24 04:43:40,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-24 04:43:40,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-24 04:43:40,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-24 04:43:40,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-24 04:43:40,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-24 04:43:40,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-24 04:43:40,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-24 04:43:40,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-24 04:43:40,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-24 04:43:40,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-24 04:43:40,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-24 04:43:40,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-24 04:43:40,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-24 04:43:40,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-24 04:43:40,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-24 04:43:40,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-24 04:43:40,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-24 04:43:40,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-24 04:43:40,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-24 04:43:40,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 04:43:40,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 04:43:40,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 04:43:40,786 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-24 04:43:40,795 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 04:43:40,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 04:43:40,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 04:43:40,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 04:43:40,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 04:43:40,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 04:43:40,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 04:43:40,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 04:43:40,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 04:43:40,798 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 04:43:40,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 04:43:40,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 04:43:40,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 04:43:40,799 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-24 04:43:40,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 04:43:40,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 04:43:40,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 04:43:40,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-24 04:43:40,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 04:43:40,799 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-24 04:43:40,799 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 04:43:40,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 04:43:41,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 04:43:41,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 04:43:41,022 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 04:43:41,023 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 04:43:41,024 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.03.i.cil.c [2022-02-24 04:43:41,078 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cf73317f/c724a0e20e7748c8a8e13f6311da9b45/FLAG84b68a9de [2022-02-24 04:43:41,497 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 04:43:41,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.03.i.cil.c [2022-02-24 04:43:41,526 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cf73317f/c724a0e20e7748c8a8e13f6311da9b45/FLAG84b68a9de [2022-02-24 04:43:41,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cf73317f/c724a0e20e7748c8a8e13f6311da9b45 [2022-02-24 04:43:41,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 04:43:41,837 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-24 04:43:41,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 04:43:41,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 04:43:41,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 04:43:41,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:43:41" (1/1) ... [2022-02-24 04:43:41,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b35143d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:43:41, skipping insertion in model container [2022-02-24 04:43:41,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:43:41" (1/1) ... [2022-02-24 04:43:41,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 04:43:41,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 04:43:42,163 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.03.i.cil.c[72493,72506] [2022-02-24 04:43:42,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 04:43:42,183 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 04:43:42,288 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.03.i.cil.c[72493,72506] [2022-02-24 04:43:42,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 04:43:42,310 INFO L208 MainTranslator]: Completed translation [2022-02-24 04:43:42,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:43:42 WrapperNode [2022-02-24 04:43:42,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 04:43:42,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 04:43:42,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 04:43:42,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 04:43:42,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:43:42" (1/1) ... [2022-02-24 04:43:42,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:43:42" (1/1) ... [2022-02-24 04:43:42,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:43:42" (1/1) ... [2022-02-24 04:43:42,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:43:42" (1/1) ... [2022-02-24 04:43:42,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:43:42" (1/1) ... [2022-02-24 04:43:42,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:43:42" (1/1) ... [2022-02-24 04:43:42,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:43:42" (1/1) ... [2022-02-24 04:43:42,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 04:43:42,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 04:43:42,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 04:43:42,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 04:43:42,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:43:42" (1/1) ... [2022-02-24 04:43:42,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 04:43:42,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 04:43:42,448 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) [2022-02-24 04:43:42,456 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 [2022-02-24 04:43:42,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 04:43:42,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 04:43:42,477 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 04:43:42,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-24 04:43:42,477 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-24 04:43:42,477 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 04:43:42,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-24 04:43:42,478 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-24 04:43:42,478 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-24 04:43:42,478 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-24 04:43:42,478 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 04:43:42,478 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 04:43:42,478 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 04:43:42,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 04:43:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-24 04:43:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-24 04:43:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 04:43:42,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-24 04:43:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-24 04:43:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-24 04:43:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-24 04:43:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-24 04:43:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-24 04:43:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-24 04:43:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-24 04:43:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-24 04:43:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 04:43:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-24 04:43:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 04:43:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-24 04:43:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 04:43:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-24 04:43:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-24 04:43:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 04:43:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 04:43:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 04:43:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-24 04:43:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-24 04:43:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-24 04:43:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-24 04:43:42,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 04:43:42,639 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 04:43:42,640 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 04:43:44,949 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-24 04:43:45,333 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-24 04:43:45,333 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-24 04:43:45,342 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 04:43:45,347 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 04:43:45,347 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-24 04:43:45,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:43:45 BoogieIcfgContainer [2022-02-24 04:43:45,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 04:43:45,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 04:43:45,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 04:43:45,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 04:43:45,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:43:41" (1/3) ... [2022-02-24 04:43:45,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9eaf8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:43:45, skipping insertion in model container [2022-02-24 04:43:45,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:43:42" (2/3) ... [2022-02-24 04:43:45,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9eaf8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:43:45, skipping insertion in model container [2022-02-24 04:43:45,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:43:45" (3/3) ... [2022-02-24 04:43:45,362 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.03.i.cil.c [2022-02-24 04:43:45,365 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-24 04:43:45,365 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 04:43:45,392 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 04:43:45,397 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 [2022-02-24 04:43:45,397 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 04:43:45,410 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-24 04:43:45,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-24 04:43:45,418 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:43:45,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 04:43:45,419 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:43:45,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:43:45,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1104936065, now seen corresponding path program 1 times [2022-02-24 04:43:45,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:43:45,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132169059] [2022-02-24 04:43:45,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:43:45,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 04:43:45,478 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 04:43:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:43:45,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 04:43:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:43:45,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 04:43:45,842 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 04:43:45,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132169059] [2022-02-24 04:43:45,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [132169059] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 04:43:45,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 04:43:45,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 04:43:45,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346839715] [2022-02-24 04:43:45,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 04:43:45,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 04:43:45,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 04:43:45,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 04:43:45,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 04:43:45,866 INFO L87 Difference]: Start difference. First operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 04:43:47,894 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 [] [2022-02-24 04:43:48,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 04:43:48,440 INFO L93 Difference]: Finished difference Result 324 states and 540 transitions. [2022-02-24 04:43:48,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 04:43:48,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-02-24 04:43:48,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 04:43:48,448 INFO L225 Difference]: With dead ends: 324 [2022-02-24 04:43:48,448 INFO L226 Difference]: Without dead ends: 165 [2022-02-24 04:43:48,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 04:43:48,461 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 34 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 04:43:48,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 577 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 401 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 04:43:48,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-02-24 04:43:48,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2022-02-24 04:43:48,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5384615384615385) internal successors, (220), 143 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 04:43:48,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 224 transitions. [2022-02-24 04:43:48,491 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 224 transitions. Word has length 52 [2022-02-24 04:43:48,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 04:43:48,492 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 224 transitions. [2022-02-24 04:43:48,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 04:43:48,492 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 224 transitions. [2022-02-24 04:43:48,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-24 04:43:48,493 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:43:48,494 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 04:43:48,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 04:43:48,494 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:43:48,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:43:48,494 INFO L85 PathProgramCache]: Analyzing trace with hash 133985870, now seen corresponding path program 1 times [2022-02-24 04:43:48,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:43:48,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1254407262] [2022-02-24 04:43:48,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:43:48,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 04:43:48,513 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 04:43:48,514 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 04:43:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:43:48,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 04:43:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:43:48,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 04:43:48,704 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 04:43:48,704 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1254407262] [2022-02-24 04:43:48,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1254407262] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 04:43:48,705 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 04:43:48,705 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 04:43:48,705 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412534020] [2022-02-24 04:43:48,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 04:43:48,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 04:43:48,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 04:43:48,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 04:43:48,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 04:43:48,707 INFO L87 Difference]: Start difference. First operand 148 states and 224 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 04:43:50,718 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 [] [2022-02-24 04:43:51,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 04:43:51,127 INFO L93 Difference]: Finished difference Result 287 states and 431 transitions. [2022-02-24 04:43:51,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 04:43:51,131 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-24 04:43:51,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 04:43:51,133 INFO L225 Difference]: With dead ends: 287 [2022-02-24 04:43:51,133 INFO L226 Difference]: Without dead ends: 165 [2022-02-24 04:43:51,133 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 [2022-02-24 04:43:51,134 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 24 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 04:43:51,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 453 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 04:43:51,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-02-24 04:43:51,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2022-02-24 04:43:51,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5314685314685315) internal successors, (219), 143 states have internal predecessors, (219), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 04:43:51,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 223 transitions. [2022-02-24 04:43:51,146 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 223 transitions. Word has length 65 [2022-02-24 04:43:51,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 04:43:51,146 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 223 transitions. [2022-02-24 04:43:51,147 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) [2022-02-24 04:43:51,147 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 223 transitions. [2022-02-24 04:43:51,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 04:43:51,156 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:43:51,157 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 04:43:51,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 04:43:51,157 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:43:51,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:43:51,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1027752574, now seen corresponding path program 1 times [2022-02-24 04:43:51,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:43:51,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [862611271] [2022-02-24 04:43:51,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:43:51,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 04:43:51,169 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-24 04:43:51,169 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 04:43:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:43:51,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 04:43:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:43:51,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 04:43:51,303 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 04:43:51,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [862611271] [2022-02-24 04:43:51,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [862611271] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 04:43:51,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 04:43:51,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 04:43:51,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485411163] [2022-02-24 04:43:51,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 04:43:51,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 04:43:51,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 04:43:51,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 04:43:51,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 04:43:51,305 INFO L87 Difference]: Start difference. First operand 148 states and 223 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 04:43:53,313 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 [] [2022-02-24 04:43:53,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 04:43:53,665 INFO L93 Difference]: Finished difference Result 286 states and 429 transitions. [2022-02-24 04:43:53,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 04:43:53,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-02-24 04:43:53,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 04:43:53,667 INFO L225 Difference]: With dead ends: 286 [2022-02-24 04:43:53,667 INFO L226 Difference]: Without dead ends: 164 [2022-02-24 04:43:53,668 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 [2022-02-24 04:43:53,669 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 28 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 04:43:53,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 455 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 348 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 04:43:53,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-02-24 04:43:53,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 148. [2022-02-24 04:43:53,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5244755244755244) internal successors, (218), 143 states have internal predecessors, (218), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 04:43:53,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 222 transitions. [2022-02-24 04:43:53,680 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 222 transitions. Word has length 66 [2022-02-24 04:43:53,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 04:43:53,680 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 222 transitions. [2022-02-24 04:43:53,680 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) [2022-02-24 04:43:53,681 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 222 transitions. [2022-02-24 04:43:53,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 04:43:53,681 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:43:53,681 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 04:43:53,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 04:43:53,682 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:43:53,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:43:53,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1865763346, now seen corresponding path program 1 times [2022-02-24 04:43:53,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:43:53,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [673197612] [2022-02-24 04:43:53,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:43:53,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 04:43:53,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-24 04:43:53,697 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0 at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractor.removeDuplicateRows(QvasrAbstractor.java:399) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractor.gaussianSolve(QvasrAbstractor.java:134) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractor.computeAbstraction(QvasrAbstractor.java:111) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrSummarizer.summarizeLoop(QvasrSummarizer.java:129) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrLoopSummarization.getQvasrAcceleration(QvasrLoopSummarization.java:87) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorQvasr.accelerateLoop(AcceleratorQvasr.java:91) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:249) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:185) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:216) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-02-24 04:43:53,699 INFO L158 Benchmark]: Toolchain (without parser) took 11862.20ms. Allocated memory was 190.8MB in the beginning and 274.7MB in the end (delta: 83.9MB). Free memory was 131.2MB in the beginning and 141.2MB in the end (delta: -10.0MB). Peak memory consumption was 74.6MB. Max. memory is 8.0GB. [2022-02-24 04:43:53,699 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 190.8MB. Free memory is still 149.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-24 04:43:53,700 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.66ms. Allocated memory was 190.8MB in the beginning and 274.7MB in the end (delta: 83.9MB). Free memory was 131.0MB in the beginning and 226.6MB in the end (delta: -95.6MB). Peak memory consumption was 16.0MB. Max. memory is 8.0GB. [2022-02-24 04:43:53,700 INFO L158 Benchmark]: Boogie Preprocessor took 112.85ms. Allocated memory is still 274.7MB. Free memory was 226.6MB in the beginning and 218.7MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-02-24 04:43:53,700 INFO L158 Benchmark]: RCFGBuilder took 2923.65ms. Allocated memory is still 274.7MB. Free memory was 218.7MB in the beginning and 226.1MB in the end (delta: -7.4MB). Peak memory consumption was 77.0MB. Max. memory is 8.0GB. [2022-02-24 04:43:53,700 INFO L158 Benchmark]: TraceAbstraction took 8349.36ms. Allocated memory is still 274.7MB. Free memory was 225.6MB in the beginning and 141.2MB in the end (delta: 84.4MB). Peak memory consumption was 84.9MB. Max. memory is 8.0GB. [2022-02-24 04:43:53,702 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 190.8MB. Free memory is still 149.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 470.66ms. Allocated memory was 190.8MB in the beginning and 274.7MB in the end (delta: 83.9MB). Free memory was 131.0MB in the beginning and 226.6MB in the end (delta: -95.6MB). Peak memory consumption was 16.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 112.85ms. Allocated memory is still 274.7MB. Free memory was 226.6MB in the beginning and 218.7MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 2923.65ms. Allocated memory is still 274.7MB. Free memory was 218.7MB in the beginning and 226.1MB in the end (delta: -7.4MB). Peak memory consumption was 77.0MB. Max. memory is 8.0GB. * TraceAbstraction took 8349.36ms. Allocated memory is still 274.7MB. Free memory was 225.6MB in the beginning and 141.2MB in the end (delta: 84.4MB). Peak memory consumption was 84.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0: de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractor.removeDuplicateRows(QvasrAbstractor.java:399) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-02-24 04:43:53,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...