/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/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 18:51:55,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 18:51:55,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 18:51:55,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-06 18:51:55,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-06 18:51:55,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-06 18:51:55,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-06 18:51:55,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-06 18:51:55,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-06 18:51:55,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-06 18:51:55,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-06 18:51:55,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-06 18:51:55,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-06 18:51:55,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-06 18:51:55,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-06 18:51:55,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-06 18:51:55,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-06 18:51:55,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-06 18:51:55,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-06 18:51:55,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-06 18:51:55,725 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-06 18:51:55,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-06 18:51:55,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-06 18:51:55,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-06 18:51:55,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-06 18:51:55,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-06 18:51:55,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 18:51:55,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 18:51:55,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 18:51:55,740 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-04-06 18:51:55,745 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 18:51:55,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 18:51:55,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 18:51:55,746 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-06 18:51:55,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 18:51:55,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-06 18:51:55,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 18:51:55,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 18:51:55,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 18:51:55,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 18:51:55,747 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-06 18:51:55,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 18:51:55,747 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 18:51:55,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 18:51:55,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 18:51:55,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 18:51:55,748 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-06 18:51:55,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 18:51:55,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 18:51:55,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 18:51:55,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-06 18:51:55,748 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-06 18:51:55,748 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-06 18:51:55,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-06 18:51:55,749 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-04-06 18:51:55,749 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 18:51:55,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 18:51:55,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 18:51:55,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 18:51:55,975 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 18:51:55,975 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 18:51:55,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_14.cil.c [2022-04-06 18:51:56,024 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f13ae1e48/0429b75e6c26495190da831a7b6bfc43/FLAGb2a844e36 [2022-04-06 18:51:56,469 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 18:51:56,469 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_14.cil.c [2022-04-06 18:51:56,476 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f13ae1e48/0429b75e6c26495190da831a7b6bfc43/FLAGb2a844e36 [2022-04-06 18:51:56,488 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f13ae1e48/0429b75e6c26495190da831a7b6bfc43 [2022-04-06 18:51:56,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 18:51:56,492 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-06 18:51:56,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 18:51:56,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 18:51:56,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 18:51:56,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 06:51:56" (1/1) ... [2022-04-06 18:51:56,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e33a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:56, skipping insertion in model container [2022-04-06 18:51:56,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 06:51:56" (1/1) ... [2022-04-06 18:51:56,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 18:51:56,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 18:51:56,731 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-simplified/s3_srvr_14.cil.c[45163,45176] [2022-04-06 18:51:56,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 18:51:56,740 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 18:51:56,773 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-simplified/s3_srvr_14.cil.c[45163,45176] [2022-04-06 18:51:56,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 18:51:56,781 INFO L208 MainTranslator]: Completed translation [2022-04-06 18:51:56,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:56 WrapperNode [2022-04-06 18:51:56,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 18:51:56,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 18:51:56,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 18:51:56,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 18:51:56,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:56" (1/1) ... [2022-04-06 18:51:56,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:56" (1/1) ... [2022-04-06 18:51:56,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:56" (1/1) ... [2022-04-06 18:51:56,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:56" (1/1) ... [2022-04-06 18:51:56,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:56" (1/1) ... [2022-04-06 18:51:56,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:56" (1/1) ... [2022-04-06 18:51:56,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:56" (1/1) ... [2022-04-06 18:51:56,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 18:51:56,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 18:51:56,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 18:51:56,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 18:51:56,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:56" (1/1) ... [2022-04-06 18:51:56,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 18:51:56,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 18:51:56,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-06 18:51:56,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-06 18:51:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 18:51:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 18:51:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 18:51:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-06 18:51:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 18:51:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 18:51:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 18:51:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 18:51:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 18:51:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-06 18:51:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-06 18:51:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-06 18:51:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-06 18:51:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 18:51:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 18:51:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 18:51:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 18:51:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 18:51:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 18:51:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 18:51:56,922 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 18:51:56,923 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 18:51:56,973 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-06 18:51:57,271 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-04-06 18:51:57,272 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-04-06 18:51:57,283 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 18:51:57,289 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 18:51:57,289 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 18:51:57,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 06:51:57 BoogieIcfgContainer [2022-04-06 18:51:57,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 18:51:57,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 18:51:57,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 18:51:57,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 18:51:57,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 06:51:56" (1/3) ... [2022-04-06 18:51:57,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144a111f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 06:51:57, skipping insertion in model container [2022-04-06 18:51:57,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 06:51:56" (2/3) ... [2022-04-06 18:51:57,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144a111f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 06:51:57, skipping insertion in model container [2022-04-06 18:51:57,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 06:51:57" (3/3) ... [2022-04-06 18:51:57,301 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_14.cil.c [2022-04-06 18:51:57,305 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-06 18:51:57,305 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 18:51:57,338 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 18:51:57,346 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-06 18:51:57,346 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 18:51:57,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 152 states have (on average 1.730263157894737) internal successors, (263), 153 states have internal predecessors, (263), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-06 18:51:57,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-04-06 18:51:57,370 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:51:57,370 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:51:57,371 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:51:57,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:51:57,374 INFO L85 PathProgramCache]: Analyzing trace with hash -242326358, now seen corresponding path program 1 times [2022-04-06 18:51:57,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:57,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [45660925] [2022-04-06 18:51:57,390 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:51:57,390 INFO L85 PathProgramCache]: Analyzing trace with hash -242326358, now seen corresponding path program 2 times [2022-04-06 18:51:57,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:51:57,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641720021] [2022-04-06 18:51:57,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:51:57,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:51:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:57,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 18:51:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:57,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 18:51:57,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:51:57,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641720021] [2022-04-06 18:51:57,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641720021] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:57,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:57,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:57,626 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:51:57,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [45660925] [2022-04-06 18:51:57,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [45660925] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:57,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:57,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:57,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027374887] [2022-04-06 18:51:57,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:51:57,631 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 18:51:57,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:57,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 18:51:57,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 18:51:57,655 INFO L87 Difference]: Start difference. First operand has 160 states, 152 states have (on average 1.730263157894737) internal successors, (263), 153 states have internal predecessors, (263), 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 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:58,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:51:58,050 INFO L93 Difference]: Finished difference Result 445 states and 761 transitions. [2022-04-06 18:51:58,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 18:51:58,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (3), 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 29 [2022-04-06 18:51:58,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:51:58,067 INFO L225 Difference]: With dead ends: 445 [2022-04-06 18:51:58,067 INFO L226 Difference]: Without dead ends: 272 [2022-04-06 18:51:58,069 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 18:51:58,071 INFO L913 BasicCegarLoop]: 265 mSDtfsCounter, 717 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-06 18:51:58,072 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [719 Valid, 274 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-06 18:51:58,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-04-06 18:51:58,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 270. [2022-04-06 18:51:58,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 265 states have (on average 1.5660377358490567) internal successors, (415), 265 states have internal predecessors, (415), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:58,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 419 transitions. [2022-04-06 18:51:58,114 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 419 transitions. Word has length 29 [2022-04-06 18:51:58,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:51:58,115 INFO L478 AbstractCegarLoop]: Abstraction has 270 states and 419 transitions. [2022-04-06 18:51:58,115 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:58,115 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 419 transitions. [2022-04-06 18:51:58,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-06 18:51:58,116 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:51:58,116 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:51:58,116 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 18:51:58,116 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:51:58,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:51:58,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1753118860, now seen corresponding path program 1 times [2022-04-06 18:51:58,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:58,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1898660922] [2022-04-06 18:51:58,117 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:51:58,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1753118860, now seen corresponding path program 2 times [2022-04-06 18:51:58,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:51:58,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459461843] [2022-04-06 18:51:58,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:51:58,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:51:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:58,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 18:51:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:58,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 18:51:58,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:51:58,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459461843] [2022-04-06 18:51:58,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459461843] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:58,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:58,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 18:51:58,171 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:51:58,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1898660922] [2022-04-06 18:51:58,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1898660922] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:58,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:58,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 18:51:58,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463845751] [2022-04-06 18:51:58,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:51:58,172 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 18:51:58,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:58,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 18:51:58,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 18:51:58,173 INFO L87 Difference]: Start difference. First operand 270 states and 419 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:58,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:51:58,454 INFO L93 Difference]: Finished difference Result 350 states and 531 transitions. [2022-04-06 18:51:58,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-06 18:51:58,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 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 30 [2022-04-06 18:51:58,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:51:58,456 INFO L225 Difference]: With dead ends: 350 [2022-04-06 18:51:58,456 INFO L226 Difference]: Without dead ends: 348 [2022-04-06 18:51:58,456 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-04-06 18:51:58,457 INFO L913 BasicCegarLoop]: 179 mSDtfsCounter, 439 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 18:51:58,457 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 191 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 18:51:58,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-04-06 18:51:58,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 288. [2022-04-06 18:51:58,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.558303886925795) internal successors, (441), 283 states have internal predecessors, (441), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:58,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 445 transitions. [2022-04-06 18:51:58,482 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 445 transitions. Word has length 30 [2022-04-06 18:51:58,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:51:58,482 INFO L478 AbstractCegarLoop]: Abstraction has 288 states and 445 transitions. [2022-04-06 18:51:58,482 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:58,482 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 445 transitions. [2022-04-06 18:51:58,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-06 18:51:58,483 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:51:58,483 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:51:58,483 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 18:51:58,483 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:51:58,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:51:58,484 INFO L85 PathProgramCache]: Analyzing trace with hash 119204085, now seen corresponding path program 1 times [2022-04-06 18:51:58,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:58,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [182051741] [2022-04-06 18:51:58,484 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:51:58,484 INFO L85 PathProgramCache]: Analyzing trace with hash 119204085, now seen corresponding path program 2 times [2022-04-06 18:51:58,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:51:58,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984676977] [2022-04-06 18:51:58,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:51:58,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:51:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:58,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 18:51:58,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:58,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 18:51:58,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:51:58,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984676977] [2022-04-06 18:51:58,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984676977] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:58,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:58,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 18:51:58,526 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:51:58,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [182051741] [2022-04-06 18:51:58,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [182051741] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:58,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:58,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 18:51:58,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115677374] [2022-04-06 18:51:58,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:51:58,527 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 18:51:58,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:58,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 18:51:58,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 18:51:58,528 INFO L87 Difference]: Start difference. First operand 288 states and 445 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:58,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:51:58,792 INFO L93 Difference]: Finished difference Result 337 states and 514 transitions. [2022-04-06 18:51:58,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 18:51:58,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 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 31 [2022-04-06 18:51:58,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:51:58,794 INFO L225 Difference]: With dead ends: 337 [2022-04-06 18:51:58,794 INFO L226 Difference]: Without dead ends: 335 [2022-04-06 18:51:58,795 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-04-06 18:51:58,795 INFO L913 BasicCegarLoop]: 169 mSDtfsCounter, 431 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 18:51:58,796 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 181 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 18:51:58,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-04-06 18:51:58,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 278. [2022-04-06 18:51:58,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 273 states have (on average 1.5677655677655677) internal successors, (428), 273 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) [2022-04-06 18:51:58,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 432 transitions. [2022-04-06 18:51:58,823 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 432 transitions. Word has length 31 [2022-04-06 18:51:58,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:51:58,824 INFO L478 AbstractCegarLoop]: Abstraction has 278 states and 432 transitions. [2022-04-06 18:51:58,824 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:58,824 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 432 transitions. [2022-04-06 18:51:58,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-06 18:51:58,825 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:51:58,825 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:51:58,825 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-06 18:51:58,825 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:51:58,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:51:58,825 INFO L85 PathProgramCache]: Analyzing trace with hash -103055551, now seen corresponding path program 1 times [2022-04-06 18:51:58,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:58,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [108824599] [2022-04-06 18:51:58,826 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:51:58,826 INFO L85 PathProgramCache]: Analyzing trace with hash -103055551, now seen corresponding path program 2 times [2022-04-06 18:51:58,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:51:58,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279820845] [2022-04-06 18:51:58,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:51:58,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:51:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:58,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 18:51:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:58,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 18:51:58,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:51:58,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279820845] [2022-04-06 18:51:58,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279820845] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:58,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:58,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 18:51:58,862 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:51:58,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [108824599] [2022-04-06 18:51:58,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [108824599] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:58,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:58,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 18:51:58,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593623764] [2022-04-06 18:51:58,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:51:58,863 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 18:51:58,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:58,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 18:51:58,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 18:51:58,863 INFO L87 Difference]: Start difference. First operand 278 states and 432 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:59,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:51:59,121 INFO L93 Difference]: Finished difference Result 360 states and 550 transitions. [2022-04-06 18:51:59,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-06 18:51:59,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 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 31 [2022-04-06 18:51:59,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:51:59,123 INFO L225 Difference]: With dead ends: 360 [2022-04-06 18:51:59,123 INFO L226 Difference]: Without dead ends: 358 [2022-04-06 18:51:59,123 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-04-06 18:51:59,124 INFO L913 BasicCegarLoop]: 179 mSDtfsCounter, 436 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 18:51:59,124 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [436 Valid, 191 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 18:51:59,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-04-06 18:51:59,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 276. [2022-04-06 18:51:59,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.5719557195571956) internal successors, (426), 271 states have internal predecessors, (426), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:59,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 430 transitions. [2022-04-06 18:51:59,143 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 430 transitions. Word has length 31 [2022-04-06 18:51:59,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:51:59,143 INFO L478 AbstractCegarLoop]: Abstraction has 276 states and 430 transitions. [2022-04-06 18:51:59,143 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:59,143 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 430 transitions. [2022-04-06 18:51:59,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-04-06 18:51:59,144 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:51:59,144 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:51:59,144 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-06 18:51:59,145 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:51:59,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:51:59,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1303486160, now seen corresponding path program 1 times [2022-04-06 18:51:59,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:59,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1551534814] [2022-04-06 18:51:59,145 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:51:59,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1303486160, now seen corresponding path program 2 times [2022-04-06 18:51:59,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:51:59,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17150226] [2022-04-06 18:51:59,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:51:59,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:51:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:59,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 18:51:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:59,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 18:51:59,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:51:59,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17150226] [2022-04-06 18:51:59,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17150226] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:59,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:59,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:59,181 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:51:59,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1551534814] [2022-04-06 18:51:59,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1551534814] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:59,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:59,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:59,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329999237] [2022-04-06 18:51:59,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:51:59,181 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 18:51:59,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:59,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 18:51:59,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 18:51:59,182 INFO L87 Difference]: Start difference. First operand 276 states and 430 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:59,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:51:59,380 INFO L93 Difference]: Finished difference Result 796 states and 1250 transitions. [2022-04-06 18:51:59,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 18:51:59,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (3), 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 39 [2022-04-06 18:51:59,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:51:59,382 INFO L225 Difference]: With dead ends: 796 [2022-04-06 18:51:59,382 INFO L226 Difference]: Without dead ends: 535 [2022-04-06 18:51:59,384 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 18:51:59,384 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 588 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 18:51:59,384 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [588 Valid, 218 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 18:51:59,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-04-06 18:51:59,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 533. [2022-04-06 18:51:59,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 528 states have (on average 1.5378787878787878) internal successors, (812), 528 states have internal predecessors, (812), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:59,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 816 transitions. [2022-04-06 18:51:59,416 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 816 transitions. Word has length 39 [2022-04-06 18:51:59,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:51:59,417 INFO L478 AbstractCegarLoop]: Abstraction has 533 states and 816 transitions. [2022-04-06 18:51:59,417 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:59,417 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 816 transitions. [2022-04-06 18:51:59,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-04-06 18:51:59,418 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:51:59,418 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:51:59,418 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-06 18:51:59,418 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:51:59,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:51:59,418 INFO L85 PathProgramCache]: Analyzing trace with hash -602421582, now seen corresponding path program 1 times [2022-04-06 18:51:59,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:59,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [279588540] [2022-04-06 18:51:59,419 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:51:59,419 INFO L85 PathProgramCache]: Analyzing trace with hash -602421582, now seen corresponding path program 2 times [2022-04-06 18:51:59,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:51:59,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007680532] [2022-04-06 18:51:59,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:51:59,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:51:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:59,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 18:51:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:59,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 18:51:59,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:51:59,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007680532] [2022-04-06 18:51:59,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007680532] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:59,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:59,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:59,455 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:51:59,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [279588540] [2022-04-06 18:51:59,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [279588540] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:59,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:59,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 18:51:59,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852368593] [2022-04-06 18:51:59,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:51:59,456 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 18:51:59,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:59,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 18:51:59,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 18:51:59,456 INFO L87 Difference]: Start difference. First operand 533 states and 816 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:59,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:51:59,696 INFO L93 Difference]: Finished difference Result 1249 states and 1965 transitions. [2022-04-06 18:51:59,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 18:51:59,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (3), 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 39 [2022-04-06 18:51:59,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:51:59,699 INFO L225 Difference]: With dead ends: 1249 [2022-04-06 18:51:59,699 INFO L226 Difference]: Without dead ends: 731 [2022-04-06 18:51:59,700 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 18:51:59,700 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 277 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 18:51:59,701 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 243 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 18:51:59,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-04-06 18:51:59,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 707. [2022-04-06 18:51:59,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 702 states have (on average 1.435897435897436) internal successors, (1008), 702 states have internal predecessors, (1008), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:59,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 1012 transitions. [2022-04-06 18:51:59,738 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 1012 transitions. Word has length 39 [2022-04-06 18:51:59,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:51:59,738 INFO L478 AbstractCegarLoop]: Abstraction has 707 states and 1012 transitions. [2022-04-06 18:51:59,738 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:51:59,738 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 1012 transitions. [2022-04-06 18:51:59,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-04-06 18:51:59,739 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:51:59,739 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:51:59,739 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-06 18:51:59,739 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:51:59,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:51:59,739 INFO L85 PathProgramCache]: Analyzing trace with hash 77636788, now seen corresponding path program 1 times [2022-04-06 18:51:59,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:59,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1711686665] [2022-04-06 18:51:59,740 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 18:51:59,740 INFO L85 PathProgramCache]: Analyzing trace with hash 77636788, now seen corresponding path program 2 times [2022-04-06 18:51:59,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 18:51:59,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208156273] [2022-04-06 18:51:59,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 18:51:59,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 18:51:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:59,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 18:51:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 18:51:59,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 18:51:59,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 18:51:59,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208156273] [2022-04-06 18:51:59,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208156273] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:59,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:59,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-06 18:51:59,776 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 18:51:59,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1711686665] [2022-04-06 18:51:59,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1711686665] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 18:51:59,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 18:51:59,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-06 18:51:59,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235911977] [2022-04-06 18:51:59,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 18:51:59,776 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-06 18:51:59,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 18:51:59,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-06 18:51:59,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-06 18:51:59,777 INFO L87 Difference]: Start difference. First operand 707 states and 1012 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:52:00,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 18:52:00,132 INFO L93 Difference]: Finished difference Result 1645 states and 2434 transitions. [2022-04-06 18:52:00,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-06 18:52:00,132 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 39 [2022-04-06 18:52:00,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 18:52:00,135 INFO L225 Difference]: With dead ends: 1645 [2022-04-06 18:52:00,135 INFO L226 Difference]: Without dead ends: 905 [2022-04-06 18:52:00,136 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-06 18:52:00,136 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 648 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-06 18:52:00,137 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [648 Valid, 198 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-06 18:52:00,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2022-04-06 18:52:00,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 889. [2022-04-06 18:52:00,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 884 states have (on average 1.407239819004525) internal successors, (1244), 884 states have internal predecessors, (1244), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:52:00,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1248 transitions. [2022-04-06 18:52:00,187 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1248 transitions. Word has length 39 [2022-04-06 18:52:00,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 18:52:00,187 INFO L478 AbstractCegarLoop]: Abstraction has 889 states and 1248 transitions. [2022-04-06 18:52:00,187 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 18:52:00,187 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1248 transitions. [2022-04-06 18:52:00,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-04-06 18:52:00,188 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 18:52:00,189 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 18:52:00,189 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-06 18:52:00,189 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 18:52:00,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 18:52:00,189 INFO L85 PathProgramCache]: Analyzing trace with hash 943214065, now seen corresponding path program 1 times [2022-04-06 18:52:00,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 18:52:00,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1570392147] [2022-04-06 18:52:00,754 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-04-06 18:52:00,755 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.logic.Theory.term(Theory.java:1603) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:401) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:249) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:249) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.PredicateHelper.makeReflexive(PredicateHelper.java:222) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:253) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAcceleratedInterpolation.construct(IpTcStrategyModuleAcceleratedInterpolation.java:80) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) 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:412) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) 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) [2022-04-06 18:52:00,757 INFO L158 Benchmark]: Toolchain (without parser) took 4265.37ms. Allocated memory was 215.0MB in the beginning and 310.4MB in the end (delta: 95.4MB). Free memory was 162.1MB in the beginning and 261.3MB in the end (delta: -99.2MB). Peak memory consumption was 157.1MB. Max. memory is 8.0GB. [2022-04-06 18:52:00,758 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 215.0MB. Free memory is still 179.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-06 18:52:00,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 281.12ms. Allocated memory is still 215.0MB. Free memory was 190.8MB in the beginning and 183.3MB in the end (delta: 7.5MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. [2022-04-06 18:52:00,758 INFO L158 Benchmark]: Boogie Preprocessor took 31.60ms. Allocated memory is still 215.0MB. Free memory was 183.3MB in the beginning and 180.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-06 18:52:00,758 INFO L158 Benchmark]: RCFGBuilder took 476.25ms. Allocated memory is still 215.0MB. Free memory was 180.9MB in the beginning and 152.6MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-04-06 18:52:00,758 INFO L158 Benchmark]: TraceAbstraction took 3465.24ms. Allocated memory was 215.0MB in the beginning and 310.4MB in the end (delta: 95.4MB). Free memory was 151.8MB in the beginning and 261.3MB in the end (delta: -109.5MB). Peak memory consumption was 145.1MB. Max. memory is 8.0GB. [2022-04-06 18:52:00,759 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 215.0MB. Free memory is still 179.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 281.12ms. Allocated memory is still 215.0MB. Free memory was 190.8MB in the beginning and 183.3MB in the end (delta: 7.5MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.60ms. Allocated memory is still 215.0MB. Free memory was 183.3MB in the beginning and 180.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 476.25ms. Allocated memory is still 215.0MB. Free memory was 180.9MB in the beginning and 152.6MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 3465.24ms. Allocated memory was 215.0MB in the beginning and 310.4MB in the end (delta: 95.4MB). Free memory was 151.8MB in the beginning and 261.3MB in the end (delta: -109.5MB). Peak memory consumption was 145.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.logic.Theory.term(Theory.java:1603) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-04-06 18:52:00,783 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...