/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-simplified/s3_srvr_13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 04:21:18,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 04:21:19,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 04:21:19,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-15 04:21:19,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 04:21:19,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 04:21:19,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 04:21:19,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 04:21:19,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 04:21:19,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 04:21:19,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 04:21:19,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 04:21:19,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 04:21:19,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 04:21:19,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 04:21:19,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 04:21:19,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-15 04:21:19,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 04:21:19,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 04:21:19,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 04:21:19,114 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-15 04:21:19,123 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 04:21:19,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 04:21:19,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 04:21:19,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 04:21:19,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 04:21:19,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 04:21:19,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 04:21:19,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 04:21:19,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 04:21:19,125 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 04:21:19,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 04:21:19,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 04:21:19,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 04:21:19,125 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 04:21:19,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 04:21:19,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 04:21:19,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 04:21:19,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-15 04:21:19,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 04:21:19,126 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-15 04:21:19,126 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 04:21:19,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 04:21:19,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 04:21:19,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 04:21:19,314 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 04:21:19,317 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 04:21:19,318 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_13.cil.c [2022-02-15 04:21:19,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dddbe7795/7cbc4718456b46a0bc9e71ce3c885e46/FLAG61badcffd [2022-02-15 04:21:19,762 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 04:21:19,762 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_13.cil.c [2022-02-15 04:21:19,771 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dddbe7795/7cbc4718456b46a0bc9e71ce3c885e46/FLAG61badcffd [2022-02-15 04:21:19,784 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dddbe7795/7cbc4718456b46a0bc9e71ce3c885e46 [2022-02-15 04:21:19,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 04:21:19,788 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-15 04:21:19,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 04:21:19,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 04:21:19,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 04:21:19,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 04:21:19" (1/1) ... [2022-02-15 04:21:19,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243d0b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:19, skipping insertion in model container [2022-02-15 04:21:19,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 04:21:19" (1/1) ... [2022-02-15 04:21:19,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 04:21:19,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 04:21:20,021 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_13.cil.c[45032,45045] [2022-02-15 04:21:20,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 04:21:20,034 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 04:21:20,090 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_13.cil.c[45032,45045] [2022-02-15 04:21:20,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 04:21:20,109 INFO L208 MainTranslator]: Completed translation [2022-02-15 04:21:20,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:20 WrapperNode [2022-02-15 04:21:20,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 04:21:20,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 04:21:20,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 04:21:20,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 04:21:20,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:20" (1/1) ... [2022-02-15 04:21:20,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:20" (1/1) ... [2022-02-15 04:21:20,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:20" (1/1) ... [2022-02-15 04:21:20,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:20" (1/1) ... [2022-02-15 04:21:20,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:20" (1/1) ... [2022-02-15 04:21:20,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:20" (1/1) ... [2022-02-15 04:21:20,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:20" (1/1) ... [2022-02-15 04:21:20,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 04:21:20,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 04:21:20,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 04:21:20,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 04:21:20,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:20" (1/1) ... [2022-02-15 04:21:20,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 04:21:20,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 04:21:20,208 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-15 04:21:20,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-15 04:21:20,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 04:21:20,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 04:21:20,245 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 04:21:20,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-15 04:21:20,245 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 04:21:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 04:21:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 04:21:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 04:21:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 04:21:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 04:21:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 04:21:20,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 04:21:20,248 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-15 04:21:20,248 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 04:21:20,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 04:21:20,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 04:21:20,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 04:21:20,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 04:21:20,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 04:21:20,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 04:21:20,331 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 04:21:20,332 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 04:21:20,386 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 04:21:20,786 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-02-15 04:21:20,786 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-02-15 04:21:20,792 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 04:21:20,800 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 04:21:20,800 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 04:21:20,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 04:21:20 BoogieIcfgContainer [2022-02-15 04:21:20,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 04:21:20,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 04:21:20,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 04:21:20,807 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 04:21:20,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 04:21:19" (1/3) ... [2022-02-15 04:21:20,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a30e9ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 04:21:20, skipping insertion in model container [2022-02-15 04:21:20,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:21:20" (2/3) ... [2022-02-15 04:21:20,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a30e9ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 04:21:20, skipping insertion in model container [2022-02-15 04:21:20,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 04:21:20" (3/3) ... [2022-02-15 04:21:20,809 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_13.cil.c [2022-02-15 04:21:20,814 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-15 04:21:20,814 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 04:21:20,848 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 04:21:20,854 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=QVASR [2022-02-15 04:21:20,854 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 04:21:20,870 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 154 states have (on average 1.7272727272727273) internal successors, (266), 155 states have internal predecessors, (266), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 04:21:20,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-02-15 04:21:20,878 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:20,879 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] [2022-02-15 04:21:20,879 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:20,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:20,885 INFO L85 PathProgramCache]: Analyzing trace with hash -963493744, now seen corresponding path program 1 times [2022-02-15 04:21:20,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:20,892 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974033505] [2022-02-15 04:21:20,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:20,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:20,936 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:21,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:21,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:21,130 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:21,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [974033505] [2022-02-15 04:21:21,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [974033505] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:21,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:21,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:21:21,133 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673596176] [2022-02-15 04:21:21,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:21,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:21:21,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:21,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:21:21,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:21:21,163 INFO L87 Difference]: Start difference. First operand has 162 states, 154 states have (on average 1.7272727272727273) internal successors, (266), 155 states have internal predecessors, (266), 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 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:21,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:21,714 INFO L93 Difference]: Finished difference Result 364 states and 611 transitions. [2022-02-15 04:21:21,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:21,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (3), 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 32 [2022-02-15 04:21:21,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:21,731 INFO L225 Difference]: With dead ends: 364 [2022-02-15 04:21:21,732 INFO L226 Difference]: Without dead ends: 185 [2022-02-15 04:21:21,736 INFO L932 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 [2022-02-15 04:21:21,741 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 542 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:21,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [543 Valid, 246 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 04:21:21,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-02-15 04:21:21,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 162. [2022-02-15 04:21:21,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.5414012738853504) internal successors, (242), 157 states have internal predecessors, (242), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:21,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 246 transitions. [2022-02-15 04:21:21,820 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 246 transitions. Word has length 32 [2022-02-15 04:21:21,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:21,820 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 246 transitions. [2022-02-15 04:21:21,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:21,821 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 246 transitions. [2022-02-15 04:21:21,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-02-15 04:21:21,823 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:21,823 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] [2022-02-15 04:21:21,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 04:21:21,824 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:21,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:21,826 INFO L85 PathProgramCache]: Analyzing trace with hash -76895489, now seen corresponding path program 1 times [2022-02-15 04:21:21,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:21,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1109786723] [2022-02-15 04:21:21,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:21,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:21,835 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:21,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:21,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:21,977 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:21,977 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1109786723] [2022-02-15 04:21:21,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1109786723] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:21,978 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:21,978 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:21:21,978 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544375876] [2022-02-15 04:21:21,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:21,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:21:21,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:21,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:21:21,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:21:21,980 INFO L87 Difference]: Start difference. First operand 162 states and 246 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:22,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:22,327 INFO L93 Difference]: Finished difference Result 330 states and 501 transitions. [2022-02-15 04:21:22,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:21:22,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 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 33 [2022-02-15 04:21:22,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:22,330 INFO L225 Difference]: With dead ends: 330 [2022-02-15 04:21:22,331 INFO L226 Difference]: Without dead ends: 182 [2022-02-15 04:21:22,335 INFO L932 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 [2022-02-15 04:21:22,336 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 424 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:22,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 181 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:22,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-02-15 04:21:22,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 152. [2022-02-15 04:21:22,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 147 states have (on average 1.5578231292517006) internal successors, (229), 147 states have internal predecessors, (229), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:22,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 233 transitions. [2022-02-15 04:21:22,370 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 233 transitions. Word has length 33 [2022-02-15 04:21:22,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:22,372 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 233 transitions. [2022-02-15 04:21:22,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:22,372 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 233 transitions. [2022-02-15 04:21:22,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-02-15 04:21:22,379 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:22,379 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] [2022-02-15 04:21:22,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 04:21:22,380 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:22,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:22,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1425858867, now seen corresponding path program 1 times [2022-02-15 04:21:22,384 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:22,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [477447245] [2022-02-15 04:21:22,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:22,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:22,389 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:22,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:22,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:22,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:22,452 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:22,452 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [477447245] [2022-02-15 04:21:22,452 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [477447245] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:22,452 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:22,452 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:21:22,452 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061494814] [2022-02-15 04:21:22,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:22,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:21:22,453 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:22,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:21:22,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:21:22,454 INFO L87 Difference]: Start difference. First operand 152 states and 233 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:22,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:22,807 INFO L93 Difference]: Finished difference Result 337 states and 535 transitions. [2022-02-15 04:21:22,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:21:22,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (3), 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 33 [2022-02-15 04:21:22,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:22,809 INFO L225 Difference]: With dead ends: 337 [2022-02-15 04:21:22,809 INFO L226 Difference]: Without dead ends: 151 [2022-02-15 04:21:22,809 INFO L932 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 [2022-02-15 04:21:22,811 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 269 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:22,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 244 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:22,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-02-15 04:21:22,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-02-15 04:21:22,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 146 states have (on average 1.547945205479452) internal successors, (226), 146 states have internal predecessors, (226), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:22,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 230 transitions. [2022-02-15 04:21:22,827 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 230 transitions. Word has length 33 [2022-02-15 04:21:22,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:22,828 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 230 transitions. [2022-02-15 04:21:22,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:22,828 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 230 transitions. [2022-02-15 04:21:22,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-02-15 04:21:22,829 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:22,829 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] [2022-02-15 04:21:22,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 04:21:22,829 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:22,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:22,830 INFO L85 PathProgramCache]: Analyzing trace with hash -319735020, now seen corresponding path program 1 times [2022-02-15 04:21:22,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:22,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155018944] [2022-02-15 04:21:22,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:22,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:22,832 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:22,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:22,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:22,880 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:22,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155018944] [2022-02-15 04:21:22,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [155018944] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:22,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:22,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:21:22,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598409291] [2022-02-15 04:21:22,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:22,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:21:22,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:22,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:21:22,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:21:22,882 INFO L87 Difference]: Start difference. First operand 151 states and 230 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:23,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:23,202 INFO L93 Difference]: Finished difference Result 329 states and 498 transitions. [2022-02-15 04:21:23,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:23,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 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 33 [2022-02-15 04:21:23,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:23,203 INFO L225 Difference]: With dead ends: 329 [2022-02-15 04:21:23,204 INFO L226 Difference]: Without dead ends: 192 [2022-02-15 04:21:23,204 INFO L932 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 [2022-02-15 04:21:23,205 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 421 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:23,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 188 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:23,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-02-15 04:21:23,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 149. [2022-02-15 04:21:23,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 144 states have (on average 1.5555555555555556) internal successors, (224), 144 states have internal predecessors, (224), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:23,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 228 transitions. [2022-02-15 04:21:23,222 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 228 transitions. Word has length 33 [2022-02-15 04:21:23,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:23,222 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 228 transitions. [2022-02-15 04:21:23,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:23,222 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 228 transitions. [2022-02-15 04:21:23,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-15 04:21:23,223 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:23,223 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] [2022-02-15 04:21:23,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 04:21:23,224 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:23,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:23,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1614356125, now seen corresponding path program 1 times [2022-02-15 04:21:23,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:23,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [225875532] [2022-02-15 04:21:23,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:23,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:23,226 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:23,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:23,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:23,271 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:23,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [225875532] [2022-02-15 04:21:23,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [225875532] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:23,271 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:23,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:21:23,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255170033] [2022-02-15 04:21:23,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:23,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:21:23,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:23,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:21:23,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:21:23,273 INFO L87 Difference]: Start difference. First operand 149 states and 228 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) [2022-02-15 04:21:23,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:23,523 INFO L93 Difference]: Finished difference Result 418 states and 647 transitions. [2022-02-15 04:21:23,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:21:23,524 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 [2022-02-15 04:21:23,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:23,526 INFO L225 Difference]: With dead ends: 418 [2022-02-15 04:21:23,527 INFO L226 Difference]: Without dead ends: 283 [2022-02-15 04:21:23,527 INFO L932 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 [2022-02-15 04:21:23,529 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 581 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:23,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [581 Valid, 219 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 04:21:23,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-02-15 04:21:23,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 281. [2022-02-15 04:21:23,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 276 states have (on average 1.5289855072463767) internal successors, (422), 276 states have internal predecessors, (422), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:23,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 426 transitions. [2022-02-15 04:21:23,567 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 426 transitions. Word has length 39 [2022-02-15 04:21:23,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:23,567 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 426 transitions. [2022-02-15 04:21:23,568 INFO L471 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) [2022-02-15 04:21:23,568 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 426 transitions. [2022-02-15 04:21:23,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-02-15 04:21:23,570 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:23,570 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] [2022-02-15 04:21:23,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 04:21:23,570 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:23,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:23,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1772802082, now seen corresponding path program 1 times [2022-02-15 04:21:23,571 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:23,571 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184463420] [2022-02-15 04:21:23,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:23,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:23,574 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:23,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:23,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:23,636 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:23,637 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184463420] [2022-02-15 04:21:23,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1184463420] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:23,637 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:23,637 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:21:23,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690890709] [2022-02-15 04:21:23,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:23,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:21:23,638 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:23,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:21:23,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:21:23,638 INFO L87 Difference]: Start difference. First operand 281 states and 426 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:23,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:23,938 INFO L93 Difference]: Finished difference Result 662 states and 1032 transitions. [2022-02-15 04:21:23,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:21:23,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 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 41 [2022-02-15 04:21:23,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:23,940 INFO L225 Difference]: With dead ends: 662 [2022-02-15 04:21:23,940 INFO L226 Difference]: Without dead ends: 395 [2022-02-15 04:21:23,941 INFO L932 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 [2022-02-15 04:21:23,942 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 302 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:23,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 239 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 04:21:23,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-02-15 04:21:23,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 367. [2022-02-15 04:21:23,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 362 states have (on average 1.4530386740331491) internal successors, (526), 362 states have internal predecessors, (526), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:23,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 530 transitions. [2022-02-15 04:21:23,983 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 530 transitions. Word has length 41 [2022-02-15 04:21:23,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:23,984 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 530 transitions. [2022-02-15 04:21:23,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:23,984 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 530 transitions. [2022-02-15 04:21:23,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-02-15 04:21:23,985 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:23,985 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] [2022-02-15 04:21:23,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 04:21:23,985 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:23,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:23,985 INFO L85 PathProgramCache]: Analyzing trace with hash 2030967520, now seen corresponding path program 1 times [2022-02-15 04:21:23,986 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:23,986 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [385860584] [2022-02-15 04:21:23,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:23,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:23,987 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:24,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:24,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:24,022 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:24,022 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [385860584] [2022-02-15 04:21:24,022 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [385860584] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:24,022 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:24,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:21:24,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169860197] [2022-02-15 04:21:24,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:24,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:21:24,023 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:24,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:21:24,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:21:24,024 INFO L87 Difference]: Start difference. First operand 367 states and 530 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:24,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:24,332 INFO L93 Difference]: Finished difference Result 850 states and 1263 transitions. [2022-02-15 04:21:24,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:21:24,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 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 41 [2022-02-15 04:21:24,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:24,337 INFO L225 Difference]: With dead ends: 850 [2022-02-15 04:21:24,337 INFO L226 Difference]: Without dead ends: 473 [2022-02-15 04:21:24,338 INFO L932 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 [2022-02-15 04:21:24,339 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 313 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:24,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 241 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 04:21:24,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-02-15 04:21:24,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 461. [2022-02-15 04:21:24,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 456 states have (on average 1.4473684210526316) internal successors, (660), 456 states have internal predecessors, (660), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:24,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 664 transitions. [2022-02-15 04:21:24,379 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 664 transitions. Word has length 41 [2022-02-15 04:21:24,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:24,379 INFO L470 AbstractCegarLoop]: Abstraction has 461 states and 664 transitions. [2022-02-15 04:21:24,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:24,379 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 664 transitions. [2022-02-15 04:21:24,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-02-15 04:21:24,381 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:24,381 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] [2022-02-15 04:21:24,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 04:21:24,382 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:24,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:24,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1025513814, now seen corresponding path program 1 times [2022-02-15 04:21:24,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:24,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249908941] [2022-02-15 04:21:24,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:24,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:24,386 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:24,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:24,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:24,442 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:24,442 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249908941] [2022-02-15 04:21:24,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [249908941] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:24,442 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:24,442 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:21:24,443 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843632403] [2022-02-15 04:21:24,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:24,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:21:24,444 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:24,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:21:24,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:21:24,444 INFO L87 Difference]: Start difference. First operand 461 states and 664 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:24,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:24,686 INFO L93 Difference]: Finished difference Result 920 states and 1326 transitions. [2022-02-15 04:21:24,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:21:24,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 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 41 [2022-02-15 04:21:24,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:24,689 INFO L225 Difference]: With dead ends: 920 [2022-02-15 04:21:24,689 INFO L226 Difference]: Without dead ends: 473 [2022-02-15 04:21:24,690 INFO L932 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 [2022-02-15 04:21:24,691 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 221 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:24,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 233 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 04:21:24,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-02-15 04:21:24,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 471. [2022-02-15 04:21:24,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 466 states have (on average 1.44206008583691) internal successors, (672), 466 states have internal predecessors, (672), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:24,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 676 transitions. [2022-02-15 04:21:24,725 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 676 transitions. Word has length 41 [2022-02-15 04:21:24,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:24,725 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 676 transitions. [2022-02-15 04:21:24,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:24,726 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 676 transitions. [2022-02-15 04:21:24,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-02-15 04:21:24,726 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:24,726 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] [2022-02-15 04:21:24,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 04:21:24,727 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:24,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:24,727 INFO L85 PathProgramCache]: Analyzing trace with hash 564813646, now seen corresponding path program 1 times [2022-02-15 04:21:24,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:24,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1304375655] [2022-02-15 04:21:24,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:24,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:24,729 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:24,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:24,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:24,761 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:24,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1304375655] [2022-02-15 04:21:24,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1304375655] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:24,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:24,762 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:21:24,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702143615] [2022-02-15 04:21:24,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:24,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:21:24,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:24,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:21:24,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:21:24,763 INFO L87 Difference]: Start difference. First operand 471 states and 676 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:25,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:25,053 INFO L93 Difference]: Finished difference Result 1058 states and 1561 transitions. [2022-02-15 04:21:25,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:21:25,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 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 43 [2022-02-15 04:21:25,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:25,056 INFO L225 Difference]: With dead ends: 1058 [2022-02-15 04:21:25,056 INFO L226 Difference]: Without dead ends: 577 [2022-02-15 04:21:25,057 INFO L932 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 [2022-02-15 04:21:25,058 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 352 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:25,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 241 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 04:21:25,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-02-15 04:21:25,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 533. [2022-02-15 04:21:25,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 528 states have (on average 1.4621212121212122) internal successors, (772), 528 states have internal predecessors, (772), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:25,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 776 transitions. [2022-02-15 04:21:25,096 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 776 transitions. Word has length 43 [2022-02-15 04:21:25,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:25,096 INFO L470 AbstractCegarLoop]: Abstraction has 533 states and 776 transitions. [2022-02-15 04:21:25,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:25,097 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 776 transitions. [2022-02-15 04:21:25,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-02-15 04:21:25,098 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:25,098 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] [2022-02-15 04:21:25,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 04:21:25,098 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:25,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:25,098 INFO L85 PathProgramCache]: Analyzing trace with hash 924583977, now seen corresponding path program 1 times [2022-02-15 04:21:25,099 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:25,099 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809837861] [2022-02-15 04:21:25,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:25,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:25,100 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:25,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:25,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:25,130 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:25,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809837861] [2022-02-15 04:21:25,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [809837861] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:25,130 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:25,130 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:21:25,130 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826881168] [2022-02-15 04:21:25,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:25,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:21:25,130 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:25,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:21:25,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:21:25,131 INFO L87 Difference]: Start difference. First operand 533 states and 776 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:25,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:25,385 INFO L93 Difference]: Finished difference Result 1555 states and 2264 transitions. [2022-02-15 04:21:25,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:21:25,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 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 47 [2022-02-15 04:21:25,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:25,390 INFO L225 Difference]: With dead ends: 1555 [2022-02-15 04:21:25,390 INFO L226 Difference]: Without dead ends: 1036 [2022-02-15 04:21:25,392 INFO L932 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 [2022-02-15 04:21:25,392 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 419 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:25,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [419 Valid, 416 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 04:21:25,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2022-02-15 04:21:25,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 535. [2022-02-15 04:21:25,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.460377358490566) internal successors, (774), 530 states have internal predecessors, (774), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:25,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 778 transitions. [2022-02-15 04:21:25,457 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 778 transitions. Word has length 47 [2022-02-15 04:21:25,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:25,457 INFO L470 AbstractCegarLoop]: Abstraction has 535 states and 778 transitions. [2022-02-15 04:21:25,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:25,458 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 778 transitions. [2022-02-15 04:21:25,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-02-15 04:21:25,459 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:25,459 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] [2022-02-15 04:21:25,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 04:21:25,459 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:25,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:25,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1945652331, now seen corresponding path program 1 times [2022-02-15 04:21:25,460 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:25,460 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1760096983] [2022-02-15 04:21:25,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:25,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:21:25,462 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:21:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:25,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:21:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:21:25,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:21:25,505 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:21:25,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1760096983] [2022-02-15 04:21:25,506 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1760096983] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:21:25,506 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:21:25,506 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:21:25,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430102889] [2022-02-15 04:21:25,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:21:25,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:21:25,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:21:25,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:21:25,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:21:25,508 INFO L87 Difference]: Start difference. First operand 535 states and 778 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:25,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:21:25,931 INFO L93 Difference]: Finished difference Result 1175 states and 1726 transitions. [2022-02-15 04:21:25,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:21:25,931 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 47 [2022-02-15 04:21:25,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:21:25,934 INFO L225 Difference]: With dead ends: 1175 [2022-02-15 04:21:25,934 INFO L226 Difference]: Without dead ends: 642 [2022-02-15 04:21:25,936 INFO L932 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 [2022-02-15 04:21:25,936 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 630 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:21:25,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [630 Valid, 198 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 04:21:25,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2022-02-15 04:21:25,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 595. [2022-02-15 04:21:25,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 590 states have (on average 1.4508474576271186) internal successors, (856), 590 states have internal predecessors, (856), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:25,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 860 transitions. [2022-02-15 04:21:25,989 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 860 transitions. Word has length 47 [2022-02-15 04:21:25,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:21:25,989 INFO L470 AbstractCegarLoop]: Abstraction has 595 states and 860 transitions. [2022-02-15 04:21:25,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:21:25,989 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 860 transitions. [2022-02-15 04:21:25,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-02-15 04:21:25,990 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:21:25,991 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:21:25,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 04:21:25,991 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:21:25,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:21:25,991 INFO L85 PathProgramCache]: Analyzing trace with hash 427057800, now seen corresponding path program 1 times [2022-02-15 04:21:25,991 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:21:25,991 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492573234] [2022-02-15 04:21:25,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:21:27,374 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.smtlibutils.SmtUtils.checkEquivalence(SmtUtils.java:2374) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.areFormulasEquivalent(SmtUtils.java:2366) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrUtils.checkTermEquiv(QvasrUtils.java:209) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractor.gaussRowEchelonFormJordan(QvasrAbstractor.java:257) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrAbstractor.gaussianSolve(QvasrAbstractor.java:135) 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:127) 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:236) 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) [2022-02-15 04:21:27,377 INFO L158 Benchmark]: Toolchain (without parser) took 7589.13ms. Allocated memory was 179.3MB in the beginning and 356.5MB in the end (delta: 177.2MB). Free memory was 123.7MB in the beginning and 323.4MB in the end (delta: -199.8MB). Peak memory consumption was 184.4MB. Max. memory is 8.0GB. [2022-02-15 04:21:27,377 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 179.3MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 04:21:27,377 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.15ms. Allocated memory was 179.3MB in the beginning and 296.7MB in the end (delta: 117.4MB). Free memory was 123.5MB in the beginning and 263.5MB in the end (delta: -140.0MB). Peak memory consumption was 12.0MB. Max. memory is 8.0GB. [2022-02-15 04:21:27,378 INFO L158 Benchmark]: Boogie Preprocessor took 54.31ms. Allocated memory is still 296.7MB. Free memory was 263.5MB in the beginning and 261.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-15 04:21:27,378 INFO L158 Benchmark]: RCFGBuilder took 636.96ms. Allocated memory is still 296.7MB. Free memory was 260.9MB in the beginning and 231.0MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-02-15 04:21:27,378 INFO L158 Benchmark]: TraceAbstraction took 6572.36ms. Allocated memory was 296.7MB in the beginning and 356.5MB in the end (delta: 59.8MB). Free memory was 230.5MB in the beginning and 323.4MB in the end (delta: -93.0MB). Peak memory consumption was 173.9MB. Max. memory is 8.0GB. [2022-02-15 04:21:27,379 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 179.3MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 321.15ms. Allocated memory was 179.3MB in the beginning and 296.7MB in the end (delta: 117.4MB). Free memory was 123.5MB in the beginning and 263.5MB in the end (delta: -140.0MB). Peak memory consumption was 12.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 54.31ms. Allocated memory is still 296.7MB. Free memory was 263.5MB in the beginning and 261.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 636.96ms. Allocated memory is still 296.7MB. Free memory was 260.9MB in the beginning and 231.0MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 6572.36ms. Allocated memory was 296.7MB in the beginning and 356.5MB in the end (delta: 59.8MB). Free memory was 230.5MB in the beginning and 323.4MB in the end (delta: -93.0MB). Peak memory consumption was 173.9MB. 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. [2022-02-15 04:21:27,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...