/usr/bin/java -ea -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_1.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-15 17:43:11,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-15 17:43:11,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-15 17:43:11,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-15 17:43:11,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-15 17:43:11,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-15 17:43:11,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-15 17:43:11,185 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-04-15 17:43:11,193 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-15 17:43:11,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-15 17:43:11,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-15 17:43:11,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-15 17:43:11,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-15 17:43:11,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-15 17:43:11,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-15 17:43:11,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-15 17:43:11,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-15 17:43:11,195 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-15 17:43:11,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-15 17:43:11,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-15 17:43:11,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-15 17:43:11,195 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-15 17:43:11,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-15 17:43:11,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 17:43:11,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-15 17:43:11,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-15 17:43:11,196 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-15 17:43:11,196 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-15 17:43:11,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-15 17:43:11,196 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-15 17:43:11,196 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-15 17:43:11,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-15 17:43:11,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-15 17:43:11,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-15 17:43:11,399 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-15 17:43:11,399 INFO L275 PluginConnector]: CDTParser initialized [2022-04-15 17:43:11,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_1.cil-1.c [2022-04-15 17:43:11,445 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c734eee5d/c84f894a68e64b659617a2aed83b8d17/FLAG38ce2e925 [2022-04-15 17:43:11,755 INFO L306 CDTParser]: Found 1 translation units. [2022-04-15 17:43:11,756 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_1.cil-1.c [2022-04-15 17:43:11,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c734eee5d/c84f894a68e64b659617a2aed83b8d17/FLAG38ce2e925 [2022-04-15 17:43:12,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c734eee5d/c84f894a68e64b659617a2aed83b8d17 [2022-04-15 17:43:12,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-15 17:43:12,175 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-15 17:43:12,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-15 17:43:12,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-15 17:43:12,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-15 17:43:12,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 05:43:12" (1/1) ... [2022-04-15 17:43:12,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4829eb10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 05:43:12, skipping insertion in model container [2022-04-15 17:43:12,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 05:43:12" (1/1) ... [2022-04-15 17:43:12,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-15 17:43:12,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-15 17:43:12,440 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_1.cil-1.c[43309,43322] [2022-04-15 17:43:12,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 17:43:12,462 INFO L203 MainTranslator]: Completed pre-run [2022-04-15 17:43:12,514 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_1.cil-1.c[43309,43322] [2022-04-15 17:43:12,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 17:43:12,525 INFO L208 MainTranslator]: Completed translation [2022-04-15 17:43:12,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 05:43:12 WrapperNode [2022-04-15 17:43:12,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-15 17:43:12,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-15 17:43:12,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-15 17:43:12,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-15 17:43:12,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 05:43:12" (1/1) ... [2022-04-15 17:43:12,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 05:43:12" (1/1) ... [2022-04-15 17:43:12,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 05:43:12" (1/1) ... [2022-04-15 17:43:12,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 05:43:12" (1/1) ... [2022-04-15 17:43:12,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 05:43:12" (1/1) ... [2022-04-15 17:43:12,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 05:43:12" (1/1) ... [2022-04-15 17:43:12,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 05:43:12" (1/1) ... [2022-04-15 17:43:12,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-15 17:43:12,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-15 17:43:12,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-15 17:43:12,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-15 17:43:12,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 05:43:12" (1/1) ... [2022-04-15 17:43:12,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 17:43:12,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 17:43:12,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-15 17:43:12,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-15 17:43:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-15 17:43:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-15 17:43:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-15 17:43:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-15 17:43:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-15 17:43:12,663 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-15 17:43:12,663 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-15 17:43:12,663 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-15 17:43:12,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-15 17:43:12,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-15 17:43:12,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-15 17:43:12,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-15 17:43:12,664 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-15 17:43:12,664 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-15 17:43:12,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-15 17:43:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-15 17:43:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-15 17:43:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-15 17:43:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-15 17:43:12,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-15 17:43:12,758 INFO L234 CfgBuilder]: Building ICFG [2022-04-15 17:43:12,759 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-15 17:43:12,813 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-15 17:43:13,201 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-04-15 17:43:13,201 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-04-15 17:43:13,209 INFO L275 CfgBuilder]: Performing block encoding [2022-04-15 17:43:13,214 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-15 17:43:13,214 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-15 17:43:13,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 05:43:13 BoogieIcfgContainer [2022-04-15 17:43:13,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-15 17:43:13,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-15 17:43:13,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-15 17:43:13,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-15 17:43:13,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 05:43:12" (1/3) ... [2022-04-15 17:43:13,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53f5b2ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 05:43:13, skipping insertion in model container [2022-04-15 17:43:13,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 05:43:12" (2/3) ... [2022-04-15 17:43:13,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53f5b2ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 05:43:13, skipping insertion in model container [2022-04-15 17:43:13,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 05:43:13" (3/3) ... [2022-04-15 17:43:13,230 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.cil-1.c [2022-04-15 17:43:13,233 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-15 17:43:13,233 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-15 17:43:13,259 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-15 17:43:13,264 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-15 17:43:13,264 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-15 17:43:13,294 INFO L276 IsEmpty]: Start isEmpty. Operand has 152 states, 144 states have (on average 1.7013888888888888) internal successors, (245), 145 states have internal predecessors, (245), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 17:43:13,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-04-15 17:43:13,302 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 17:43:13,303 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 17:43:13,303 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 17:43:13,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 17:43:13,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1979865033, now seen corresponding path program 1 times [2022-04-15 17:43:13,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 17:43:13,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1579385706] [2022-04-15 17:43:13,319 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 17:43:13,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1979865033, now seen corresponding path program 2 times [2022-04-15 17:43:13,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 17:43:13,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083885216] [2022-04-15 17:43:13,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 17:43:13,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 17:43:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 17:43:13,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 17:43:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 17:43:13,598 INFO L290 TraceCheckUtils]: 0: Hoare triple {161#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); {155#true} is VALID [2022-04-15 17:43:13,598 INFO L290 TraceCheckUtils]: 1: Hoare triple {155#true} assume true; {155#true} is VALID [2022-04-15 17:43:13,599 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {155#true} {155#true} #614#return; {155#true} is VALID [2022-04-15 17:43:13,600 INFO L272 TraceCheckUtils]: 0: Hoare triple {155#true} call ULTIMATE.init(); {161#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 17:43:13,600 INFO L290 TraceCheckUtils]: 1: Hoare triple {161#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); {155#true} is VALID [2022-04-15 17:43:13,600 INFO L290 TraceCheckUtils]: 2: Hoare triple {155#true} assume true; {155#true} is VALID [2022-04-15 17:43:13,600 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {155#true} {155#true} #614#return; {155#true} is VALID [2022-04-15 17:43:13,600 INFO L272 TraceCheckUtils]: 4: Hoare triple {155#true} call #t~ret55 := main(); {155#true} is VALID [2022-04-15 17:43:13,601 INFO L290 TraceCheckUtils]: 5: Hoare triple {155#true} havoc ~s~0;havoc ~tmp~1;~s~0 := 8464; {155#true} is VALID [2022-04-15 17:43:13,601 INFO L272 TraceCheckUtils]: 6: Hoare triple {155#true} call #t~ret54 := ssl3_accept(~s~0); {155#true} is VALID [2022-04-15 17:43:13,602 INFO L290 TraceCheckUtils]: 7: Hoare triple {155#true} ~initial_state := #in~initial_state;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~s__info_callback~0 := #t~nondet4;havoc #t~nondet4;assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~s__in_handshake~0 := #t~nondet5;havoc #t~nondet5;havoc ~s__state~0;havoc ~s__new_session~0;havoc ~s__server~0;assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647;~s__version~0 := #t~nondet6;havoc #t~nondet6;havoc ~s__type~0;havoc ~s__init_num~0;assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647;~s__hit~0 := #t~nondet7;havoc #t~nondet7;havoc ~s__rwstate~0;~s__init_buf___0~0 := 1;assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647;~s__debug~0 := #t~nondet8;havoc #t~nondet8;havoc ~s__shutdown~0;assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647;~s__cert~0 := #t~nondet9;havoc #t~nondet9;assume -2147483648 <= #t~nondet10 && #t~nondet10 <= 2147483647;~s__options~0 := #t~nondet10;havoc #t~nondet10;assume -2147483648 <= #t~nondet11 && #t~nondet11 <= 2147483647;~s__verify_mode~0 := #t~nondet11;havoc #t~nondet11;assume -2147483648 <= #t~nondet12 && #t~nondet12 <= 2147483647;~s__session__peer~0 := #t~nondet12;havoc #t~nondet12;assume -2147483648 <= #t~nondet13 && #t~nondet13 <= 2147483647;~s__cert__pkeys__AT0__privatekey~0 := #t~nondet13;havoc #t~nondet13;assume -2147483648 <= #t~nondet14 && #t~nondet14 <= 2147483647;~s__ctx__info_callback~0 := #t~nondet14;havoc #t~nondet14;assume -2147483648 <= #t~nondet15 && #t~nondet15 <= 2147483647;~s__ctx__stats__sess_accept_renegotiate~0 := #t~nondet15;havoc #t~nondet15;assume -2147483648 <= #t~nondet16 && #t~nondet16 <= 2147483647;~s__ctx__stats__sess_accept~0 := #t~nondet16;havoc #t~nondet16;assume -2147483648 <= #t~nondet17 && #t~nondet17 <= 2147483647;~s__ctx__stats__sess_accept_good~0 := #t~nondet17;havoc #t~nondet17;havoc ~s__s3__tmp__cert_request~0;assume -2147483648 <= #t~nondet18 && #t~nondet18 <= 2147483647;~s__s3__tmp__reuse_message~0 := #t~nondet18;havoc #t~nondet18;havoc ~s__s3__tmp__use_rsa_tmp~0;assume -2147483648 <= #t~nondet19 && #t~nondet19 <= 2147483647;~s__s3__tmp__new_cipher~0 := #t~nondet19;havoc #t~nondet19;assume -2147483648 <= #t~nondet20 && #t~nondet20 <= 2147483647;~s__s3__tmp__new_cipher__algorithms~0 := #t~nondet20;havoc #t~nondet20;havoc ~s__s3__tmp__next_state___0~0;assume -2147483648 <= #t~nondet21 && #t~nondet21 <= 2147483647;~s__s3__tmp__new_cipher__algo_strength~0 := #t~nondet21;havoc #t~nondet21;havoc ~s__session__cipher~0;assume -2147483648 <= #t~nondet22 && #t~nondet22 <= 2147483647;~buf~0 := #t~nondet22;havoc #t~nondet22;havoc ~l~0;havoc ~Time~0;assume -9223372036854775808 <= #t~nondet23 && #t~nondet23 <= 9223372036854775807;~tmp~0 := #t~nondet23;havoc #t~nondet23;havoc ~cb~0;havoc ~num1~0;havoc ~ret~0;havoc ~new_state~0;havoc ~state~0;havoc ~skip~0;havoc ~got_new_session~0;assume -2147483648 <= #t~nondet24 && #t~nondet24 <= 2147483647;~tmp___1~0 := #t~nondet24;havoc #t~nondet24;assume -2147483648 <= #t~nondet25 && #t~nondet25 <= 2147483647;~tmp___2~0 := #t~nondet25;havoc #t~nondet25;havoc ~tmp___3~0;havoc ~tmp___4~0;havoc ~tmp___5~0;havoc ~tmp___6~0;havoc ~tmp___7~0;assume -9223372036854775808 <= #t~nondet26 && #t~nondet26 <= 9223372036854775807;~tmp___8~0 := #t~nondet26;havoc #t~nondet26;havoc ~tmp___9~0;havoc ~tmp___10~0;havoc ~blastFlag~0;havoc ~__cil_tmp55~0;havoc ~__cil_tmp56~0;havoc ~__cil_tmp57~0;havoc ~__cil_tmp58~0;havoc ~__cil_tmp59~0;havoc ~__cil_tmp60~0;havoc ~__cil_tmp61~0;~s__state~0 := ~initial_state;~blastFlag~0 := 0;~Time~0 := ~tmp~0;~cb~0 := 0;~ret~0 := -1;~skip~0 := 0;~got_new_session~0 := 0; {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,603 INFO L290 TraceCheckUtils]: 8: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume 0 != ~s__info_callback~0;~cb~0 := ~s__info_callback~0; {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,603 INFO L290 TraceCheckUtils]: 9: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} #t~post27 := ~s__in_handshake~0;~s__in_handshake~0 := 1 + #t~post27;havoc #t~post27; {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,604 INFO L290 TraceCheckUtils]: 10: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(0 != 12288 + ~tmp___1~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,604 INFO L290 TraceCheckUtils]: 11: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(0 == ~s__cert~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,604 INFO L290 TraceCheckUtils]: 12: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !false; {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,605 INFO L290 TraceCheckUtils]: 13: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} ~state~0 := ~s__state~0; {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,605 INFO L290 TraceCheckUtils]: 14: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(12292 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,606 INFO L290 TraceCheckUtils]: 15: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(16384 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,609 INFO L290 TraceCheckUtils]: 16: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8192 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,610 INFO L290 TraceCheckUtils]: 17: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(24576 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,611 INFO L290 TraceCheckUtils]: 18: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8195 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,612 INFO L290 TraceCheckUtils]: 19: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8480 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,612 INFO L290 TraceCheckUtils]: 20: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8481 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,613 INFO L290 TraceCheckUtils]: 21: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8482 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,613 INFO L290 TraceCheckUtils]: 22: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8464 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,614 INFO L290 TraceCheckUtils]: 23: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8465 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,614 INFO L290 TraceCheckUtils]: 24: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8466 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,614 INFO L290 TraceCheckUtils]: 25: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8496 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,615 INFO L290 TraceCheckUtils]: 26: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8497 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,615 INFO L290 TraceCheckUtils]: 27: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8512 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,616 INFO L290 TraceCheckUtils]: 28: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8513 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,616 INFO L290 TraceCheckUtils]: 29: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8528 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,616 INFO L290 TraceCheckUtils]: 30: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8529 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,617 INFO L290 TraceCheckUtils]: 31: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8544 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,617 INFO L290 TraceCheckUtils]: 32: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8545 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,618 INFO L290 TraceCheckUtils]: 33: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8560 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,618 INFO L290 TraceCheckUtils]: 34: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8561 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,618 INFO L290 TraceCheckUtils]: 35: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8448 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,619 INFO L290 TraceCheckUtils]: 36: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8576 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,619 INFO L290 TraceCheckUtils]: 37: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8577 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,620 INFO L290 TraceCheckUtils]: 38: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8592 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,621 INFO L290 TraceCheckUtils]: 39: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8593 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,621 INFO L290 TraceCheckUtils]: 40: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8608 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,622 INFO L290 TraceCheckUtils]: 41: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8609 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,622 INFO L290 TraceCheckUtils]: 42: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8640 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,623 INFO L290 TraceCheckUtils]: 43: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8641 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,624 INFO L290 TraceCheckUtils]: 44: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8656 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,625 INFO L290 TraceCheckUtils]: 45: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(8657 == ~s__state~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,625 INFO L290 TraceCheckUtils]: 46: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume 8672 == ~s__state~0; {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,628 INFO L290 TraceCheckUtils]: 47: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume -2147483648 <= #t~nondet50 && #t~nondet50 <= 2147483647;~ret~0 := #t~nondet50;havoc #t~nondet50; {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,628 INFO L290 TraceCheckUtils]: 48: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume !(4 == ~blastFlag~0); {160#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 17:43:13,629 INFO L290 TraceCheckUtils]: 49: Hoare triple {160#(= ssl3_accept_~blastFlag~0 0)} assume 3 == ~blastFlag~0; {156#false} is VALID [2022-04-15 17:43:13,629 INFO L290 TraceCheckUtils]: 50: Hoare triple {156#false} assume !false; {156#false} is VALID [2022-04-15 17:43:13,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 17:43:13,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 17:43:13,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083885216] [2022-04-15 17:43:13,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083885216] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 17:43:13,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 17:43:13,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-15 17:43:13,634 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 17:43:13,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1579385706] [2022-04-15 17:43:13,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1579385706] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 17:43:13,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 17:43:13,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-15 17:43:13,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646929972] [2022-04-15 17:43:13,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 17:43:13,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 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 51 [2022-04-15 17:43:13,642 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 17:43:13,644 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 17:43:13,690 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 17:43:13,690 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-15 17:43:13,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 17:43:13,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-15 17:43:13,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-15 17:43:13,711 INFO L87 Difference]: Start difference. First operand has 152 states, 144 states have (on average 1.7013888888888888) internal successors, (245), 145 states have internal predecessors, (245), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 17:43:14,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 17:43:14,525 INFO L93 Difference]: Finished difference Result 420 states and 707 transitions. [2022-04-15 17:43:14,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-15 17:43:14,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 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 51 [2022-04-15 17:43:14,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 17:43:14,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 17:43:14,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 707 transitions. [2022-04-15 17:43:14,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 17:43:14,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 707 transitions. [2022-04-15 17:43:14,550 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 707 transitions. [2022-04-15 17:43:15,111 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 707 edges. 707 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 17:43:15,124 INFO L225 Difference]: With dead ends: 420 [2022-04-15 17:43:15,125 INFO L226 Difference]: Without dead ends: 255 [2022-04-15 17:43:15,128 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-15 17:43:15,130 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 637 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-15 17:43:15,131 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [639 Valid, 250 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-15 17:43:15,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-04-15 17:43:15,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2022-04-15 17:43:15,173 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 17:43:15,176 INFO L82 GeneralOperation]: Start isEquivalent. First operand 255 states. Second operand has 255 states, 250 states have (on average 1.52) internal successors, (380), 250 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 17:43:15,177 INFO L74 IsIncluded]: Start isIncluded. First operand 255 states. Second operand has 255 states, 250 states have (on average 1.52) internal successors, (380), 250 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 17:43:15,178 INFO L87 Difference]: Start difference. First operand 255 states. Second operand has 255 states, 250 states have (on average 1.52) internal successors, (380), 250 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 17:43:15,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 17:43:15,193 INFO L93 Difference]: Finished difference Result 255 states and 384 transitions. [2022-04-15 17:43:15,193 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 384 transitions. [2022-04-15 17:43:15,200 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 17:43:15,201 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 17:43:15,201 INFO L74 IsIncluded]: Start isIncluded. First operand has 255 states, 250 states have (on average 1.52) internal successors, (380), 250 states have internal predecessors, (380), 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) Second operand 255 states. [2022-04-15 17:43:15,202 INFO L87 Difference]: Start difference. First operand has 255 states, 250 states have (on average 1.52) internal successors, (380), 250 states have internal predecessors, (380), 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) Second operand 255 states. [2022-04-15 17:43:15,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 17:43:15,213 INFO L93 Difference]: Finished difference Result 255 states and 384 transitions. [2022-04-15 17:43:15,213 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 384 transitions. [2022-04-15 17:43:15,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 17:43:15,214 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 17:43:15,214 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 17:43:15,214 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 17:43:15,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 250 states have (on average 1.52) internal successors, (380), 250 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 17:43:15,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 384 transitions. [2022-04-15 17:43:15,232 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 384 transitions. Word has length 51 [2022-04-15 17:43:15,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 17:43:15,233 INFO L478 AbstractCegarLoop]: Abstraction has 255 states and 384 transitions. [2022-04-15 17:43:15,233 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 17:43:15,233 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 255 states and 384 transitions. [2022-04-15 17:43:15,501 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 384 edges. 384 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 17:43:15,502 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 384 transitions. [2022-04-15 17:43:15,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-15 17:43:15,503 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 17:43:15,505 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 17:43:15,505 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-15 17:43:15,505 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 17:43:15,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 17:43:15,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1218319566, now seen corresponding path program 1 times [2022-04-15 17:43:15,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 17:43:15,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [650232554]