/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_12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-07 00:49:45,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-07 00:49:45,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-07 00:49:45,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-07 00:49:45,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-07 00:49:45,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-07 00:49:45,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-07 00:49:45,946 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-04-07 00:49:45,956 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-07 00:49:45,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-07 00:49:45,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-07 00:49:45,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-07 00:49:45,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-07 00:49:45,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-07 00:49:45,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-07 00:49:45,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-07 00:49:45,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-07 00:49:45,958 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-07 00:49:45,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-07 00:49:45,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-07 00:49:45,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-07 00:49:45,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-07 00:49:45,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-07 00:49:45,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 00:49:45,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-07 00:49:45,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-07 00:49:45,959 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-07 00:49:45,959 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-07 00:49:45,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-07 00:49:45,959 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-07 00:49:45,960 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-07 00:49:46,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-07 00:49:46,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-07 00:49:46,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-07 00:49:46,178 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-07 00:49:46,179 INFO L275 PluginConnector]: CDTParser initialized [2022-04-07 00:49:46,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_12.cil.c [2022-04-07 00:49:46,225 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28e70d307/94c30e6f5b0a41668e72b118eee769ef/FLAGb4d3df75c [2022-04-07 00:49:46,584 INFO L306 CDTParser]: Found 1 translation units. [2022-04-07 00:49:46,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_12.cil.c [2022-04-07 00:49:46,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28e70d307/94c30e6f5b0a41668e72b118eee769ef/FLAGb4d3df75c [2022-04-07 00:49:46,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28e70d307/94c30e6f5b0a41668e72b118eee769ef [2022-04-07 00:49:46,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-07 00:49:46,617 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-07 00:49:46,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-07 00:49:46,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-07 00:49:46,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-07 00:49:46,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:46,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a22a3c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46, skipping insertion in model container [2022-04-07 00:49:46,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:46,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-07 00:49:46,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-07 00:49:46,818 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_12.cil.c[49672,49685] [2022-04-07 00:49:46,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 00:49:46,829 INFO L203 MainTranslator]: Completed pre-run [2022-04-07 00:49:46,865 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_12.cil.c[49672,49685] [2022-04-07 00:49:46,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 00:49:46,875 INFO L208 MainTranslator]: Completed translation [2022-04-07 00:49:46,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46 WrapperNode [2022-04-07 00:49:46,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-07 00:49:46,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-07 00:49:46,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-07 00:49:46,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-07 00:49:46,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:46,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:46,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:46,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:46,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:46,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:46,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:46,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-07 00:49:46,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-07 00:49:46,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-07 00:49:46,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-07 00:49:46,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46" (1/1) ... [2022-04-07 00:49:46,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 00:49:46,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 00:49:46,954 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) [2022-04-07 00:49:46,956 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 [2022-04-07 00:49:46,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-07 00:49:46,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-07 00:49:46,986 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-07 00:49:46,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-07 00:49:46,987 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-07 00:49:46,987 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-07 00:49:46,987 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-07 00:49:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-07 00:49:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-07 00:49:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-07 00:49:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-07 00:49:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-07 00:49:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-07 00:49:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-07 00:49:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-07 00:49:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-07 00:49:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-07 00:49:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-07 00:49:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-07 00:49:46,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-07 00:49:46,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-07 00:49:47,050 INFO L234 CfgBuilder]: Building ICFG [2022-04-07 00:49:47,053 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-07 00:49:47,095 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-07 00:49:47,428 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-04-07 00:49:47,429 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-04-07 00:49:47,442 INFO L275 CfgBuilder]: Performing block encoding [2022-04-07 00:49:47,447 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-07 00:49:47,447 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-07 00:49:47,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 12:49:47 BoogieIcfgContainer [2022-04-07 00:49:47,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-07 00:49:47,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-07 00:49:47,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-07 00:49:47,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-07 00:49:47,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.04 12:49:46" (1/3) ... [2022-04-07 00:49:47,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4afb66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 12:49:47, skipping insertion in model container [2022-04-07 00:49:47,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 12:49:46" (2/3) ... [2022-04-07 00:49:47,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4afb66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 12:49:47, skipping insertion in model container [2022-04-07 00:49:47,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 12:49:47" (3/3) ... [2022-04-07 00:49:47,457 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_12.cil.c [2022-04-07 00:49:47,461 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-07 00:49:47,461 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-07 00:49:47,501 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-07 00:49:47,509 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 [2022-04-07 00:49:47,509 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-07 00:49:47,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 176 states, 168 states have (on average 1.75) internal successors, (294), 169 states have internal predecessors, (294), 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) [2022-04-07 00:49:47,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-04-07 00:49:47,545 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:47,546 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] [2022-04-07 00:49:47,546 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:47,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:47,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1199187261, now seen corresponding path program 1 times [2022-04-07 00:49:47,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:47,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1169702603] [2022-04-07 00:49:47,565 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:47,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1199187261, now seen corresponding path program 2 times [2022-04-07 00:49:47,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:47,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938269903] [2022-04-07 00:49:47,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:47,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:47,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:47,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:47,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:47,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938269903] [2022-04-07 00:49:47,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938269903] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:47,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:47,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:47,804 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:47,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1169702603] [2022-04-07 00:49:47,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1169702603] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:47,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:47,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:47,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390218057] [2022-04-07 00:49:47,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:47,807 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:47,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:47,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:47,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:47,828 INFO L87 Difference]: Start difference. First operand has 176 states, 168 states have (on average 1.75) internal successors, (294), 169 states have internal predecessors, (294), 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 6 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:48,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:48,337 INFO L93 Difference]: Finished difference Result 363 states and 624 transitions. [2022-04-07 00:49:48,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:48,340 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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 34 [2022-04-07 00:49:48,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:48,346 INFO L225 Difference]: With dead ends: 363 [2022-04-07 00:49:48,346 INFO L226 Difference]: Without dead ends: 180 [2022-04-07 00:49:48,353 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:48,356 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 862 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:48,358 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [862 Valid, 258 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-07 00:49:48,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-04-07 00:49:48,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 178. [2022-04-07 00:49:48,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 173 states have (on average 1.6127167630057804) internal successors, (279), 173 states have internal predecessors, (279), 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) [2022-04-07 00:49:48,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 283 transitions. [2022-04-07 00:49:48,401 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 283 transitions. Word has length 34 [2022-04-07 00:49:48,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:48,401 INFO L478 AbstractCegarLoop]: Abstraction has 178 states and 283 transitions. [2022-04-07 00:49:48,401 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:48,401 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 283 transitions. [2022-04-07 00:49:48,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-04-07 00:49:48,402 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:48,402 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] [2022-04-07 00:49:48,403 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-07 00:49:48,403 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:48,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:48,403 INFO L85 PathProgramCache]: Analyzing trace with hash -576860, now seen corresponding path program 1 times [2022-04-07 00:49:48,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:48,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1343597295] [2022-04-07 00:49:48,404 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:48,404 INFO L85 PathProgramCache]: Analyzing trace with hash -576860, now seen corresponding path program 2 times [2022-04-07 00:49:48,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:48,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863871401] [2022-04-07 00:49:48,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:48,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:48,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:48,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:48,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:48,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863871401] [2022-04-07 00:49:48,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863871401] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:48,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:48,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:48,464 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:48,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1343597295] [2022-04-07 00:49:48,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1343597295] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:48,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:48,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:48,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311079538] [2022-04-07 00:49:48,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:48,465 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:48,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:48,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:48,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:48,466 INFO L87 Difference]: Start difference. First operand 178 states and 283 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:48,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:48,771 INFO L93 Difference]: Finished difference Result 364 states and 581 transitions. [2022-04-07 00:49:48,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:48,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 35 [2022-04-07 00:49:48,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:48,773 INFO L225 Difference]: With dead ends: 364 [2022-04-07 00:49:48,773 INFO L226 Difference]: Without dead ends: 200 [2022-04-07 00:49:48,774 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:48,775 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 766 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:48,775 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [766 Valid, 197 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:48,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-04-07 00:49:48,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2022-04-07 00:49:48,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 195 states have (on average 1.5846153846153845) internal successors, (309), 195 states have internal predecessors, (309), 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) [2022-04-07 00:49:48,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 313 transitions. [2022-04-07 00:49:48,793 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 313 transitions. Word has length 35 [2022-04-07 00:49:48,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:48,793 INFO L478 AbstractCegarLoop]: Abstraction has 200 states and 313 transitions. [2022-04-07 00:49:48,794 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:48,794 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 313 transitions. [2022-04-07 00:49:48,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-04-07 00:49:48,794 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:48,794 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] [2022-04-07 00:49:48,795 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-07 00:49:48,795 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:48,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:48,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1037347800, now seen corresponding path program 1 times [2022-04-07 00:49:48,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:48,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [397823713] [2022-04-07 00:49:48,800 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:48,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1037347800, now seen corresponding path program 2 times [2022-04-07 00:49:48,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:48,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935238599] [2022-04-07 00:49:48,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:48,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:48,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:48,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:48,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:48,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935238599] [2022-04-07 00:49:48,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935238599] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:48,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:48,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:48,896 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:48,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [397823713] [2022-04-07 00:49:48,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [397823713] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:48,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:48,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:48,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713070975] [2022-04-07 00:49:48,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:48,897 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:48,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:48,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:48,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:48,898 INFO L87 Difference]: Start difference. First operand 200 states and 313 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:49,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:49,172 INFO L93 Difference]: Finished difference Result 393 states and 622 transitions. [2022-04-07 00:49:49,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:49,172 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 35 [2022-04-07 00:49:49,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:49,174 INFO L225 Difference]: With dead ends: 393 [2022-04-07 00:49:49,174 INFO L226 Difference]: Without dead ends: 207 [2022-04-07 00:49:49,177 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:49,179 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 758 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:49,183 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [758 Valid, 198 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:49,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-04-07 00:49:49,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2022-04-07 00:49:49,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.5940594059405941) internal successors, (322), 202 states have internal predecessors, (322), 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) [2022-04-07 00:49:49,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 326 transitions. [2022-04-07 00:49:49,204 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 326 transitions. Word has length 35 [2022-04-07 00:49:49,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:49,205 INFO L478 AbstractCegarLoop]: Abstraction has 207 states and 326 transitions. [2022-04-07 00:49:49,205 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:49,205 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 326 transitions. [2022-04-07 00:49:49,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-04-07 00:49:49,206 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:49,206 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] [2022-04-07 00:49:49,206 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-07 00:49:49,206 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:49,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:49,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1441132167, now seen corresponding path program 1 times [2022-04-07 00:49:49,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:49,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1507066461] [2022-04-07 00:49:49,207 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:49,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1441132167, now seen corresponding path program 2 times [2022-04-07 00:49:49,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:49,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177224458] [2022-04-07 00:49:49,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:49,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:49,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:49,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:49,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:49,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177224458] [2022-04-07 00:49:49,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177224458] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:49,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:49,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:49,261 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:49,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1507066461] [2022-04-07 00:49:49,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1507066461] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:49,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:49,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:49,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583276152] [2022-04-07 00:49:49,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:49,262 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:49,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:49,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:49,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:49,263 INFO L87 Difference]: Start difference. First operand 207 states and 326 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:49,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:49,537 INFO L93 Difference]: Finished difference Result 402 states and 636 transitions. [2022-04-07 00:49:49,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:49,538 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 35 [2022-04-07 00:49:49,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:49,539 INFO L225 Difference]: With dead ends: 402 [2022-04-07 00:49:49,539 INFO L226 Difference]: Without dead ends: 209 [2022-04-07 00:49:49,540 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:49,540 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 759 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:49,540 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [759 Valid, 198 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:49,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-04-07 00:49:49,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 207. [2022-04-07 00:49:49,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.5891089108910892) internal successors, (321), 202 states have internal predecessors, (321), 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) [2022-04-07 00:49:49,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 325 transitions. [2022-04-07 00:49:49,555 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 325 transitions. Word has length 35 [2022-04-07 00:49:49,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:49,555 INFO L478 AbstractCegarLoop]: Abstraction has 207 states and 325 transitions. [2022-04-07 00:49:49,555 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:49,555 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 325 transitions. [2022-04-07 00:49:49,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-04-07 00:49:49,556 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:49,556 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] [2022-04-07 00:49:49,556 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-07 00:49:49,557 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:49,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:49,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1028210496, now seen corresponding path program 1 times [2022-04-07 00:49:49,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:49,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [598699263] [2022-04-07 00:49:49,558 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:49,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1028210496, now seen corresponding path program 2 times [2022-04-07 00:49:49,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:49,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112573739] [2022-04-07 00:49:49,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:49,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:49,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:49,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:49,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:49,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112573739] [2022-04-07 00:49:49,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112573739] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:49,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:49,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:49,608 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:49,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [598699263] [2022-04-07 00:49:49,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [598699263] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:49,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:49,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:49,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106146320] [2022-04-07 00:49:49,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:49,609 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:49,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:49,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:49,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:49,610 INFO L87 Difference]: Start difference. First operand 207 states and 325 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:49,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:49,875 INFO L93 Difference]: Finished difference Result 410 states and 644 transitions. [2022-04-07 00:49:49,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:49,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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 36 [2022-04-07 00:49:49,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:49,876 INFO L225 Difference]: With dead ends: 410 [2022-04-07 00:49:49,877 INFO L226 Difference]: Without dead ends: 217 [2022-04-07 00:49:49,877 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:49,877 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 767 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:49,878 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 197 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:49,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-04-07 00:49:49,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 207. [2022-04-07 00:49:49,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.5792079207920793) internal successors, (319), 202 states have internal predecessors, (319), 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) [2022-04-07 00:49:49,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 323 transitions. [2022-04-07 00:49:49,891 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 323 transitions. Word has length 36 [2022-04-07 00:49:49,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:49,892 INFO L478 AbstractCegarLoop]: Abstraction has 207 states and 323 transitions. [2022-04-07 00:49:49,893 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:49,893 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 323 transitions. [2022-04-07 00:49:49,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-04-07 00:49:49,897 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:49,897 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] [2022-04-07 00:49:49,897 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-07 00:49:49,897 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:49,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:49,898 INFO L85 PathProgramCache]: Analyzing trace with hash -2097728708, now seen corresponding path program 1 times [2022-04-07 00:49:49,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:49,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1008245779] [2022-04-07 00:49:49,898 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:49,898 INFO L85 PathProgramCache]: Analyzing trace with hash -2097728708, now seen corresponding path program 2 times [2022-04-07 00:49:49,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:49,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57620051] [2022-04-07 00:49:49,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:49,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:49,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:49,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:49,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:49,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:49,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57620051] [2022-04-07 00:49:49,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57620051] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:49,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:49,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:49,964 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:49,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1008245779] [2022-04-07 00:49:49,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1008245779] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:49,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:49,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:49,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065142832] [2022-04-07 00:49:49,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:49,965 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:49,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:49,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:49,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:49,965 INFO L87 Difference]: Start difference. First operand 207 states and 323 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:50,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:50,232 INFO L93 Difference]: Finished difference Result 410 states and 640 transitions. [2022-04-07 00:49:50,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:50,232 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 37 [2022-04-07 00:49:50,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:50,233 INFO L225 Difference]: With dead ends: 410 [2022-04-07 00:49:50,233 INFO L226 Difference]: Without dead ends: 217 [2022-04-07 00:49:50,234 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:50,234 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 767 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:50,235 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 198 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:50,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-04-07 00:49:50,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 207. [2022-04-07 00:49:50,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.5693069306930694) internal successors, (317), 202 states have internal predecessors, (317), 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) [2022-04-07 00:49:50,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 321 transitions. [2022-04-07 00:49:50,246 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 321 transitions. Word has length 37 [2022-04-07 00:49:50,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:50,247 INFO L478 AbstractCegarLoop]: Abstraction has 207 states and 321 transitions. [2022-04-07 00:49:50,247 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:50,247 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 321 transitions. [2022-04-07 00:49:50,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-07 00:49:50,268 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:50,268 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] [2022-04-07 00:49:50,268 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-07 00:49:50,268 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:50,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:50,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1553278138, now seen corresponding path program 1 times [2022-04-07 00:49:50,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:50,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2050719349] [2022-04-07 00:49:50,269 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:50,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1553278138, now seen corresponding path program 2 times [2022-04-07 00:49:50,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:50,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558880852] [2022-04-07 00:49:50,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:50,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:50,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:50,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:50,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:50,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558880852] [2022-04-07 00:49:50,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558880852] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:50,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:50,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 00:49:50,328 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:50,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2050719349] [2022-04-07 00:49:50,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2050719349] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:50,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:50,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 00:49:50,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467848878] [2022-04-07 00:49:50,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:50,329 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 00:49:50,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:50,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 00:49:50,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:49:50,329 INFO L87 Difference]: Start difference. First operand 207 states and 321 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-04-07 00:49:50,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:50,531 INFO L93 Difference]: Finished difference Result 443 states and 687 transitions. [2022-04-07 00:49:50,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 00:49:50,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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 38 [2022-04-07 00:49:50,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:50,532 INFO L225 Difference]: With dead ends: 443 [2022-04-07 00:49:50,532 INFO L226 Difference]: Without dead ends: 250 [2022-04-07 00:49:50,533 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-04-07 00:49:50,533 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 482 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:50,533 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [482 Valid, 195 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:50,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-04-07 00:49:50,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 214. [2022-04-07 00:49:50,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5645933014354068) internal successors, (327), 209 states have internal predecessors, (327), 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) [2022-04-07 00:49:50,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 331 transitions. [2022-04-07 00:49:50,549 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 331 transitions. Word has length 38 [2022-04-07 00:49:50,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:50,549 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 331 transitions. [2022-04-07 00:49:50,549 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-04-07 00:49:50,549 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 331 transitions. [2022-04-07 00:49:50,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-07 00:49:50,549 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:50,549 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] [2022-04-07 00:49:50,550 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-07 00:49:50,550 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:50,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:50,550 INFO L85 PathProgramCache]: Analyzing trace with hash 839158341, now seen corresponding path program 1 times [2022-04-07 00:49:50,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:50,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1599980436] [2022-04-07 00:49:50,551 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:50,551 INFO L85 PathProgramCache]: Analyzing trace with hash 839158341, now seen corresponding path program 2 times [2022-04-07 00:49:50,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:50,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418397153] [2022-04-07 00:49:50,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:50,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:50,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:50,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:50,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:50,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418397153] [2022-04-07 00:49:50,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418397153] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:50,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:50,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:50,584 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:50,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1599980436] [2022-04-07 00:49:50,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1599980436] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:50,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:50,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:50,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703788733] [2022-04-07 00:49:50,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:50,585 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:50,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:50,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:50,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:50,585 INFO L87 Difference]: Start difference. First operand 214 states and 331 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:50,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:50,872 INFO L93 Difference]: Finished difference Result 424 states and 656 transitions. [2022-04-07 00:49:50,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:50,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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 38 [2022-04-07 00:49:50,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:50,874 INFO L225 Difference]: With dead ends: 424 [2022-04-07 00:49:50,874 INFO L226 Difference]: Without dead ends: 224 [2022-04-07 00:49:50,874 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:50,875 INFO L913 BasicCegarLoop]: 182 mSDtfsCounter, 767 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:50,875 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 199 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:50,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-04-07 00:49:50,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 214. [2022-04-07 00:49:50,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.555023923444976) internal successors, (325), 209 states have internal predecessors, (325), 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) [2022-04-07 00:49:50,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 329 transitions. [2022-04-07 00:49:50,894 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 329 transitions. Word has length 38 [2022-04-07 00:49:50,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:50,894 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 329 transitions. [2022-04-07 00:49:50,894 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:50,895 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 329 transitions. [2022-04-07 00:49:50,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-04-07 00:49:50,895 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:50,895 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:49:50,895 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-07 00:49:50,896 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:50,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:50,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1549869087, now seen corresponding path program 1 times [2022-04-07 00:49:50,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:50,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [671877673] [2022-04-07 00:49:50,896 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:50,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1549869087, now seen corresponding path program 2 times [2022-04-07 00:49:50,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:50,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765342500] [2022-04-07 00:49:50,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:50,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:50,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:50,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:50,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:50,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765342500] [2022-04-07 00:49:50,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765342500] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:50,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:50,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:50,951 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:50,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [671877673] [2022-04-07 00:49:50,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [671877673] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:50,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:50,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:50,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361889439] [2022-04-07 00:49:50,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:50,952 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:50,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:50,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:50,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:50,953 INFO L87 Difference]: Start difference. First operand 214 states and 329 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:51,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:51,228 INFO L93 Difference]: Finished difference Result 424 states and 652 transitions. [2022-04-07 00:49:51,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:51,229 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-04-07 00:49:51,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:51,231 INFO L225 Difference]: With dead ends: 424 [2022-04-07 00:49:51,231 INFO L226 Difference]: Without dead ends: 224 [2022-04-07 00:49:51,231 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:51,233 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 767 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:51,233 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 200 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:51,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-04-07 00:49:51,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 214. [2022-04-07 00:49:51,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5454545454545454) internal successors, (323), 209 states have internal predecessors, (323), 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) [2022-04-07 00:49:51,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 327 transitions. [2022-04-07 00:49:51,250 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 327 transitions. Word has length 39 [2022-04-07 00:49:51,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:51,252 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 327 transitions. [2022-04-07 00:49:51,252 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:51,252 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 327 transitions. [2022-04-07 00:49:51,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-04-07 00:49:51,252 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:51,252 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:49:51,252 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-07 00:49:51,252 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:51,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:51,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1904631677, now seen corresponding path program 1 times [2022-04-07 00:49:51,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:51,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1121483175] [2022-04-07 00:49:51,253 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:51,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1904631677, now seen corresponding path program 2 times [2022-04-07 00:49:51,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:51,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811567397] [2022-04-07 00:49:51,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:51,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:51,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:51,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:51,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:51,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:51,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811567397] [2022-04-07 00:49:51,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811567397] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:51,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:51,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:51,305 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:51,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1121483175] [2022-04-07 00:49:51,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1121483175] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:51,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:51,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:51,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524317289] [2022-04-07 00:49:51,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:51,305 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:51,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:51,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:51,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:51,306 INFO L87 Difference]: Start difference. First operand 214 states and 327 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:51,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:51,577 INFO L93 Difference]: Finished difference Result 419 states and 644 transitions. [2022-04-07 00:49:51,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:51,577 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-04-07 00:49:51,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:51,578 INFO L225 Difference]: With dead ends: 419 [2022-04-07 00:49:51,579 INFO L226 Difference]: Without dead ends: 219 [2022-04-07 00:49:51,579 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:51,579 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 754 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:51,580 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [754 Valid, 204 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:51,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-04-07 00:49:51,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 216. [2022-04-07 00:49:51,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5450236966824644) internal successors, (326), 211 states have internal predecessors, (326), 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) [2022-04-07 00:49:51,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 330 transitions. [2022-04-07 00:49:51,597 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 330 transitions. Word has length 39 [2022-04-07 00:49:51,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:51,597 INFO L478 AbstractCegarLoop]: Abstraction has 216 states and 330 transitions. [2022-04-07 00:49:51,597 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:51,597 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 330 transitions. [2022-04-07 00:49:51,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-04-07 00:49:51,598 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:51,598 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] [2022-04-07 00:49:51,598 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-07 00:49:51,598 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:51,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:51,598 INFO L85 PathProgramCache]: Analyzing trace with hash -827017343, now seen corresponding path program 1 times [2022-04-07 00:49:51,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:51,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [203298207] [2022-04-07 00:49:51,599 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:51,599 INFO L85 PathProgramCache]: Analyzing trace with hash -827017343, now seen corresponding path program 2 times [2022-04-07 00:49:51,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:51,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702434847] [2022-04-07 00:49:51,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:51,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:51,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:51,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:51,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:51,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702434847] [2022-04-07 00:49:51,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702434847] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:51,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:51,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:51,631 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:51,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [203298207] [2022-04-07 00:49:51,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [203298207] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:51,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:51,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:51,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799247469] [2022-04-07 00:49:51,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:51,632 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:51,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:51,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:51,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:51,633 INFO L87 Difference]: Start difference. First operand 216 states and 330 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:51,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:51,927 INFO L93 Difference]: Finished difference Result 444 states and 678 transitions. [2022-04-07 00:49:51,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:51,927 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 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 40 [2022-04-07 00:49:51,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:51,929 INFO L225 Difference]: With dead ends: 444 [2022-04-07 00:49:51,929 INFO L226 Difference]: Without dead ends: 242 [2022-04-07 00:49:51,929 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:51,930 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 754 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:51,930 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [754 Valid, 205 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:51,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-04-07 00:49:51,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 239. [2022-04-07 00:49:51,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.5256410256410255) internal successors, (357), 234 states have internal predecessors, (357), 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) [2022-04-07 00:49:51,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 361 transitions. [2022-04-07 00:49:51,956 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 361 transitions. Word has length 40 [2022-04-07 00:49:51,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:51,956 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 361 transitions. [2022-04-07 00:49:51,956 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:51,956 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 361 transitions. [2022-04-07 00:49:51,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-04-07 00:49:51,957 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:51,957 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] [2022-04-07 00:49:51,957 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-07 00:49:51,957 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:51,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:51,957 INFO L85 PathProgramCache]: Analyzing trace with hash 341017417, now seen corresponding path program 1 times [2022-04-07 00:49:51,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:51,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [727120859] [2022-04-07 00:49:51,958 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:51,958 INFO L85 PathProgramCache]: Analyzing trace with hash 341017417, now seen corresponding path program 2 times [2022-04-07 00:49:51,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:51,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385847243] [2022-04-07 00:49:51,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:51,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:51,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:52,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:52,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:52,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:52,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385847243] [2022-04-07 00:49:52,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385847243] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:52,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:52,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:52,004 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:52,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [727120859] [2022-04-07 00:49:52,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [727120859] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:52,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:52,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:52,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292052544] [2022-04-07 00:49:52,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:52,005 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:52,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:52,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:52,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:52,006 INFO L87 Difference]: Start difference. First operand 239 states and 361 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:52,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:52,286 INFO L93 Difference]: Finished difference Result 493 states and 745 transitions. [2022-04-07 00:49:52,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:52,287 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 43 [2022-04-07 00:49:52,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:52,289 INFO L225 Difference]: With dead ends: 493 [2022-04-07 00:49:52,289 INFO L226 Difference]: Without dead ends: 268 [2022-04-07 00:49:52,290 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:52,290 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 732 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:52,290 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [732 Valid, 220 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:52,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-04-07 00:49:52,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 264. [2022-04-07 00:49:52,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 259 states have (on average 1.5096525096525097) internal successors, (391), 259 states have internal predecessors, (391), 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) [2022-04-07 00:49:52,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 395 transitions. [2022-04-07 00:49:52,314 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 395 transitions. Word has length 43 [2022-04-07 00:49:52,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:52,314 INFO L478 AbstractCegarLoop]: Abstraction has 264 states and 395 transitions. [2022-04-07 00:49:52,314 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:52,314 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 395 transitions. [2022-04-07 00:49:52,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-04-07 00:49:52,314 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:52,314 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] [2022-04-07 00:49:52,315 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-07 00:49:52,315 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:52,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:52,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1564538053, now seen corresponding path program 1 times [2022-04-07 00:49:52,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:52,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [593740257] [2022-04-07 00:49:52,317 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:52,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1564538053, now seen corresponding path program 2 times [2022-04-07 00:49:52,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:52,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142873968] [2022-04-07 00:49:52,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:52,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:52,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:52,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:52,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:52,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142873968] [2022-04-07 00:49:52,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142873968] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:52,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:52,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:52,365 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:52,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [593740257] [2022-04-07 00:49:52,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [593740257] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:52,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:52,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:52,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010987036] [2022-04-07 00:49:52,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:52,366 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:52,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:52,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:52,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:52,367 INFO L87 Difference]: Start difference. First operand 264 states and 395 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:52,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:52,645 INFO L93 Difference]: Finished difference Result 547 states and 818 transitions. [2022-04-07 00:49:52,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:52,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 43 [2022-04-07 00:49:52,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:52,646 INFO L225 Difference]: With dead ends: 547 [2022-04-07 00:49:52,646 INFO L226 Difference]: Without dead ends: 297 [2022-04-07 00:49:52,647 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:52,648 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 768 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:52,648 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [768 Valid, 206 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:52,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-04-07 00:49:52,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 292. [2022-04-07 00:49:52,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.494773519163763) internal successors, (429), 287 states have internal predecessors, (429), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:52,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 433 transitions. [2022-04-07 00:49:52,676 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 433 transitions. Word has length 43 [2022-04-07 00:49:52,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:52,676 INFO L478 AbstractCegarLoop]: Abstraction has 292 states and 433 transitions. [2022-04-07 00:49:52,676 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:52,676 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 433 transitions. [2022-04-07 00:49:52,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-04-07 00:49:52,677 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:52,677 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] [2022-04-07 00:49:52,677 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-07 00:49:52,677 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:52,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:52,677 INFO L85 PathProgramCache]: Analyzing trace with hash -570717011, now seen corresponding path program 1 times [2022-04-07 00:49:52,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:52,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1790770097] [2022-04-07 00:49:52,678 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:52,678 INFO L85 PathProgramCache]: Analyzing trace with hash -570717011, now seen corresponding path program 2 times [2022-04-07 00:49:52,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:52,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857632090] [2022-04-07 00:49:52,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:52,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:52,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:52,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:52,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:52,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857632090] [2022-04-07 00:49:52,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857632090] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:52,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:52,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:52,713 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:52,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1790770097] [2022-04-07 00:49:52,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1790770097] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:52,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:52,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:52,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445425799] [2022-04-07 00:49:52,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:52,714 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:52,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:52,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:52,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:52,715 INFO L87 Difference]: Start difference. First operand 292 states and 433 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:53,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:53,004 INFO L93 Difference]: Finished difference Result 575 states and 856 transitions. [2022-04-07 00:49:53,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:53,004 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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 44 [2022-04-07 00:49:53,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:53,005 INFO L225 Difference]: With dead ends: 575 [2022-04-07 00:49:53,006 INFO L226 Difference]: Without dead ends: 297 [2022-04-07 00:49:53,006 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:53,006 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 761 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:53,007 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [761 Valid, 206 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:53,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-04-07 00:49:53,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 293. [2022-04-07 00:49:53,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 288 states have (on average 1.4895833333333333) internal successors, (429), 288 states have internal predecessors, (429), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:53,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 433 transitions. [2022-04-07 00:49:53,037 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 433 transitions. Word has length 44 [2022-04-07 00:49:53,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:53,037 INFO L478 AbstractCegarLoop]: Abstraction has 293 states and 433 transitions. [2022-04-07 00:49:53,037 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:53,037 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 433 transitions. [2022-04-07 00:49:53,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-04-07 00:49:53,038 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:53,038 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] [2022-04-07 00:49:53,038 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-07 00:49:53,038 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:53,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:53,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1737605119, now seen corresponding path program 1 times [2022-04-07 00:49:53,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:53,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2053473343] [2022-04-07 00:49:53,040 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:53,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1737605119, now seen corresponding path program 2 times [2022-04-07 00:49:53,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:53,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120640274] [2022-04-07 00:49:53,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:53,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:53,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:53,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:53,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:53,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120640274] [2022-04-07 00:49:53,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120640274] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:53,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:53,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:53,075 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:53,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2053473343] [2022-04-07 00:49:53,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2053473343] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:53,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:53,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:53,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421808385] [2022-04-07 00:49:53,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:53,075 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:53,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:53,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:53,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:53,076 INFO L87 Difference]: Start difference. First operand 293 states and 433 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:53,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:53,360 INFO L93 Difference]: Finished difference Result 579 states and 859 transitions. [2022-04-07 00:49:53,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:53,361 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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 44 [2022-04-07 00:49:53,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:53,362 INFO L225 Difference]: With dead ends: 579 [2022-04-07 00:49:53,362 INFO L226 Difference]: Without dead ends: 300 [2022-04-07 00:49:53,364 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:53,364 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 763 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:53,365 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [763 Valid, 208 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:53,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-04-07 00:49:53,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 295. [2022-04-07 00:49:53,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 290 states have (on average 1.4896551724137932) internal successors, (432), 290 states have internal predecessors, (432), 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) [2022-04-07 00:49:53,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 436 transitions. [2022-04-07 00:49:53,395 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 436 transitions. Word has length 44 [2022-04-07 00:49:53,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:53,396 INFO L478 AbstractCegarLoop]: Abstraction has 295 states and 436 transitions. [2022-04-07 00:49:53,396 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:53,396 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 436 transitions. [2022-04-07 00:49:53,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-04-07 00:49:53,396 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:53,396 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] [2022-04-07 00:49:53,396 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-07 00:49:53,396 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:53,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:53,397 INFO L85 PathProgramCache]: Analyzing trace with hash -970621315, now seen corresponding path program 1 times [2022-04-07 00:49:53,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:53,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1763254841] [2022-04-07 00:49:53,397 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:53,397 INFO L85 PathProgramCache]: Analyzing trace with hash -970621315, now seen corresponding path program 2 times [2022-04-07 00:49:53,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:53,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801962302] [2022-04-07 00:49:53,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:53,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:53,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:53,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:53,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:53,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801962302] [2022-04-07 00:49:53,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801962302] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:53,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:53,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:53,436 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:53,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1763254841] [2022-04-07 00:49:53,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1763254841] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:53,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:53,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:53,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629283168] [2022-04-07 00:49:53,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:53,436 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:53,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:53,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:53,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:53,437 INFO L87 Difference]: Start difference. First operand 295 states and 436 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:53,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:53,744 INFO L93 Difference]: Finished difference Result 615 states and 910 transitions. [2022-04-07 00:49:53,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:53,745 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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 45 [2022-04-07 00:49:53,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:53,746 INFO L225 Difference]: With dead ends: 615 [2022-04-07 00:49:53,746 INFO L226 Difference]: Without dead ends: 334 [2022-04-07 00:49:53,747 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:53,747 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 785 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:53,747 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [785 Valid, 209 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:49:53,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-04-07 00:49:53,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 325. [2022-04-07 00:49:53,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.475) internal successors, (472), 320 states have internal predecessors, (472), 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) [2022-04-07 00:49:53,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 476 transitions. [2022-04-07 00:49:53,807 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 476 transitions. Word has length 45 [2022-04-07 00:49:53,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:53,808 INFO L478 AbstractCegarLoop]: Abstraction has 325 states and 476 transitions. [2022-04-07 00:49:53,808 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:53,808 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 476 transitions. [2022-04-07 00:49:53,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-04-07 00:49:53,808 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:53,808 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] [2022-04-07 00:49:53,808 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-07 00:49:53,809 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:53,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:53,809 INFO L85 PathProgramCache]: Analyzing trace with hash -957955839, now seen corresponding path program 1 times [2022-04-07 00:49:53,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:53,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2003889684] [2022-04-07 00:49:53,809 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:53,809 INFO L85 PathProgramCache]: Analyzing trace with hash -957955839, now seen corresponding path program 2 times [2022-04-07 00:49:53,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:53,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769966684] [2022-04-07 00:49:53,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:53,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:53,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:53,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:53,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:53,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769966684] [2022-04-07 00:49:53,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769966684] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:53,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:53,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:53,840 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:53,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2003889684] [2022-04-07 00:49:53,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2003889684] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:53,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:53,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:53,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356614258] [2022-04-07 00:49:53,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:53,841 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:53,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:53,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:53,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:53,841 INFO L87 Difference]: Start difference. First operand 325 states and 476 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:54,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:54,214 INFO L93 Difference]: Finished difference Result 649 states and 957 transitions. [2022-04-07 00:49:54,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:54,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 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 46 [2022-04-07 00:49:54,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:54,215 INFO L225 Difference]: With dead ends: 649 [2022-04-07 00:49:54,215 INFO L226 Difference]: Without dead ends: 338 [2022-04-07 00:49:54,216 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:54,216 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 788 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:54,216 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [788 Valid, 209 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:54,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-04-07 00:49:54,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 329. [2022-04-07 00:49:54,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 324 states have (on average 1.478395061728395) internal successors, (479), 324 states have internal predecessors, (479), 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) [2022-04-07 00:49:54,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 483 transitions. [2022-04-07 00:49:54,253 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 483 transitions. Word has length 46 [2022-04-07 00:49:54,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:54,253 INFO L478 AbstractCegarLoop]: Abstraction has 329 states and 483 transitions. [2022-04-07 00:49:54,253 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:54,253 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 483 transitions. [2022-04-07 00:49:54,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-04-07 00:49:54,254 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:54,254 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] [2022-04-07 00:49:54,254 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-07 00:49:54,254 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:54,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:54,255 INFO L85 PathProgramCache]: Analyzing trace with hash 14351293, now seen corresponding path program 1 times [2022-04-07 00:49:54,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:54,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2012292245] [2022-04-07 00:49:54,255 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:54,255 INFO L85 PathProgramCache]: Analyzing trace with hash 14351293, now seen corresponding path program 2 times [2022-04-07 00:49:54,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:54,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494229575] [2022-04-07 00:49:54,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:54,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:54,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:54,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:54,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:54,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494229575] [2022-04-07 00:49:54,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494229575] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:54,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:54,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:54,282 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:54,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2012292245] [2022-04-07 00:49:54,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2012292245] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:54,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:54,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:54,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272805026] [2022-04-07 00:49:54,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:54,283 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:54,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:54,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:54,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:54,283 INFO L87 Difference]: Start difference. First operand 329 states and 483 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:54,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:54,637 INFO L93 Difference]: Finished difference Result 686 states and 1008 transitions. [2022-04-07 00:49:54,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:54,637 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 48 [2022-04-07 00:49:54,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:54,638 INFO L225 Difference]: With dead ends: 686 [2022-04-07 00:49:54,638 INFO L226 Difference]: Without dead ends: 371 [2022-04-07 00:49:54,639 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:54,639 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 795 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:54,639 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [795 Valid, 209 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:54,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-04-07 00:49:54,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 357. [2022-04-07 00:49:54,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 352 states have (on average 1.4602272727272727) internal successors, (514), 352 states have internal predecessors, (514), 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) [2022-04-07 00:49:54,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 518 transitions. [2022-04-07 00:49:54,716 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 518 transitions. Word has length 48 [2022-04-07 00:49:54,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:54,716 INFO L478 AbstractCegarLoop]: Abstraction has 357 states and 518 transitions. [2022-04-07 00:49:54,717 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:54,717 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 518 transitions. [2022-04-07 00:49:54,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-04-07 00:49:54,717 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:54,717 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] [2022-04-07 00:49:54,717 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-07 00:49:54,717 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:54,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:54,718 INFO L85 PathProgramCache]: Analyzing trace with hash -447006304, now seen corresponding path program 1 times [2022-04-07 00:49:54,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:54,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1805531497] [2022-04-07 00:49:54,718 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:54,718 INFO L85 PathProgramCache]: Analyzing trace with hash -447006304, now seen corresponding path program 2 times [2022-04-07 00:49:54,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:54,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325536991] [2022-04-07 00:49:54,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:54,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:54,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:54,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:54,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:54,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:54,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325536991] [2022-04-07 00:49:54,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325536991] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:54,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:54,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:54,754 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:54,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1805531497] [2022-04-07 00:49:54,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1805531497] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:54,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:54,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:54,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713513507] [2022-04-07 00:49:54,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:54,754 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:54,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:54,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:54,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:54,755 INFO L87 Difference]: Start difference. First operand 357 states and 518 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:55,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:55,124 INFO L93 Difference]: Finished difference Result 734 states and 1062 transitions. [2022-04-07 00:49:55,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:55,124 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 48 [2022-04-07 00:49:55,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:55,126 INFO L225 Difference]: With dead ends: 734 [2022-04-07 00:49:55,126 INFO L226 Difference]: Without dead ends: 391 [2022-04-07 00:49:55,127 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:55,127 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 759 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:55,127 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [759 Valid, 211 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:55,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-04-07 00:49:55,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 389. [2022-04-07 00:49:55,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.4453125) internal successors, (555), 384 states have internal predecessors, (555), 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) [2022-04-07 00:49:55,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 559 transitions. [2022-04-07 00:49:55,175 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 559 transitions. Word has length 48 [2022-04-07 00:49:55,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:55,175 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 559 transitions. [2022-04-07 00:49:55,175 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:55,175 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 559 transitions. [2022-04-07 00:49:55,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-04-07 00:49:55,176 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:55,176 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] [2022-04-07 00:49:55,176 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-07 00:49:55,176 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:55,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:55,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1888205337, now seen corresponding path program 1 times [2022-04-07 00:49:55,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:55,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [790007443] [2022-04-07 00:49:55,177 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:55,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1888205337, now seen corresponding path program 2 times [2022-04-07 00:49:55,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:55,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361561626] [2022-04-07 00:49:55,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:55,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:55,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:55,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:55,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:55,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361561626] [2022-04-07 00:49:55,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361561626] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:55,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:55,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:55,204 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:55,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [790007443] [2022-04-07 00:49:55,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [790007443] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:55,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:55,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:55,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781706900] [2022-04-07 00:49:55,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:55,205 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:55,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:55,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:55,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:55,205 INFO L87 Difference]: Start difference. First operand 389 states and 559 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:55,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:55,564 INFO L93 Difference]: Finished difference Result 778 states and 1123 transitions. [2022-04-07 00:49:55,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:55,565 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 49 [2022-04-07 00:49:55,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:55,566 INFO L225 Difference]: With dead ends: 778 [2022-04-07 00:49:55,566 INFO L226 Difference]: Without dead ends: 403 [2022-04-07 00:49:55,567 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:55,567 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 795 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:55,567 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [795 Valid, 210 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:55,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-04-07 00:49:55,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 389. [2022-04-07 00:49:55,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.4375) internal successors, (552), 384 states have internal predecessors, (552), 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) [2022-04-07 00:49:55,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 556 transitions. [2022-04-07 00:49:55,651 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 556 transitions. Word has length 49 [2022-04-07 00:49:55,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:55,651 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 556 transitions. [2022-04-07 00:49:55,652 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:55,652 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 556 transitions. [2022-04-07 00:49:55,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-04-07 00:49:55,652 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:55,652 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] [2022-04-07 00:49:55,652 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-07 00:49:55,652 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:55,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:55,653 INFO L85 PathProgramCache]: Analyzing trace with hash -396811972, now seen corresponding path program 1 times [2022-04-07 00:49:55,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:55,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1794169301] [2022-04-07 00:49:55,653 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:55,653 INFO L85 PathProgramCache]: Analyzing trace with hash -396811972, now seen corresponding path program 2 times [2022-04-07 00:49:55,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:55,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244582108] [2022-04-07 00:49:55,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:55,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:55,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:55,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:55,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:55,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244582108] [2022-04-07 00:49:55,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244582108] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:55,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:55,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:55,682 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:55,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1794169301] [2022-04-07 00:49:55,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1794169301] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:55,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:55,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:55,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340051254] [2022-04-07 00:49:55,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:55,683 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:55,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:55,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:55,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:55,683 INFO L87 Difference]: Start difference. First operand 389 states and 556 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:56,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:56,025 INFO L93 Difference]: Finished difference Result 768 states and 1100 transitions. [2022-04-07 00:49:56,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:56,025 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 49 [2022-04-07 00:49:56,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:56,040 INFO L225 Difference]: With dead ends: 768 [2022-04-07 00:49:56,040 INFO L226 Difference]: Without dead ends: 393 [2022-04-07 00:49:56,041 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:56,041 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 746 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:56,041 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [746 Valid, 217 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:56,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-04-07 00:49:56,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 391. [2022-04-07 00:49:56,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 386 states have (on average 1.4378238341968912) internal successors, (555), 386 states have internal predecessors, (555), 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) [2022-04-07 00:49:56,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 559 transitions. [2022-04-07 00:49:56,110 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 559 transitions. Word has length 49 [2022-04-07 00:49:56,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:56,110 INFO L478 AbstractCegarLoop]: Abstraction has 391 states and 559 transitions. [2022-04-07 00:49:56,110 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:56,111 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 559 transitions. [2022-04-07 00:49:56,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-07 00:49:56,111 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:56,111 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] [2022-04-07 00:49:56,111 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-07 00:49:56,111 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:56,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:56,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1088761570, now seen corresponding path program 1 times [2022-04-07 00:49:56,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:56,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1110420575] [2022-04-07 00:49:56,112 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:56,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1088761570, now seen corresponding path program 2 times [2022-04-07 00:49:56,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:56,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410815866] [2022-04-07 00:49:56,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:56,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:56,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:56,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:56,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:56,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410815866] [2022-04-07 00:49:56,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410815866] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:56,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:56,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:56,140 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:56,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1110420575] [2022-04-07 00:49:56,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1110420575] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:56,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:56,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:56,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300583621] [2022-04-07 00:49:56,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:56,141 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:56,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:56,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:56,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:56,141 INFO L87 Difference]: Start difference. First operand 391 states and 559 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:56,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:56,509 INFO L93 Difference]: Finished difference Result 832 states and 1196 transitions. [2022-04-07 00:49:56,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:56,509 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 50 [2022-04-07 00:49:56,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:56,511 INFO L225 Difference]: With dead ends: 832 [2022-04-07 00:49:56,511 INFO L226 Difference]: Without dead ends: 455 [2022-04-07 00:49:56,512 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:56,512 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 739 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:56,512 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [739 Valid, 213 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:56,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-04-07 00:49:56,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 453. [2022-04-07 00:49:56,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.4308035714285714) internal successors, (641), 448 states have internal predecessors, (641), 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) [2022-04-07 00:49:56,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 645 transitions. [2022-04-07 00:49:56,600 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 645 transitions. Word has length 50 [2022-04-07 00:49:56,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:56,600 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 645 transitions. [2022-04-07 00:49:56,600 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:56,600 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 645 transitions. [2022-04-07 00:49:56,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-07 00:49:56,601 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:56,601 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] [2022-04-07 00:49:56,601 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-07 00:49:56,601 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:56,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:56,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1090858659, now seen corresponding path program 1 times [2022-04-07 00:49:56,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:56,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1519672372] [2022-04-07 00:49:56,602 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:56,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1090858659, now seen corresponding path program 2 times [2022-04-07 00:49:56,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:56,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442737970] [2022-04-07 00:49:56,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:56,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:56,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:56,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:56,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:56,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442737970] [2022-04-07 00:49:56,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442737970] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:56,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:56,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:56,631 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:56,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1519672372] [2022-04-07 00:49:56,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1519672372] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:56,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:56,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:56,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649504726] [2022-04-07 00:49:56,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:56,631 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:56,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:56,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:56,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:56,632 INFO L87 Difference]: Start difference. First operand 453 states and 645 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:56,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:56,997 INFO L93 Difference]: Finished difference Result 944 states and 1344 transitions. [2022-04-07 00:49:56,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:56,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 50 [2022-04-07 00:49:56,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:56,999 INFO L225 Difference]: With dead ends: 944 [2022-04-07 00:49:56,999 INFO L226 Difference]: Without dead ends: 505 [2022-04-07 00:49:57,000 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:57,001 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 809 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:57,001 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [809 Valid, 212 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:57,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-04-07 00:49:57,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 495. [2022-04-07 00:49:57,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 490 states have (on average 1.4224489795918367) internal successors, (697), 490 states have internal predecessors, (697), 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) [2022-04-07 00:49:57,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 701 transitions. [2022-04-07 00:49:57,068 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 701 transitions. Word has length 50 [2022-04-07 00:49:57,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:57,068 INFO L478 AbstractCegarLoop]: Abstraction has 495 states and 701 transitions. [2022-04-07 00:49:57,068 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:57,069 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 701 transitions. [2022-04-07 00:49:57,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-04-07 00:49:57,069 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:57,069 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] [2022-04-07 00:49:57,069 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-07 00:49:57,069 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:57,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:57,070 INFO L85 PathProgramCache]: Analyzing trace with hash -163662636, now seen corresponding path program 1 times [2022-04-07 00:49:57,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:57,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1120145493] [2022-04-07 00:49:57,070 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:57,070 INFO L85 PathProgramCache]: Analyzing trace with hash -163662636, now seen corresponding path program 2 times [2022-04-07 00:49:57,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:57,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164016245] [2022-04-07 00:49:57,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:57,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:57,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:57,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:57,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:57,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164016245] [2022-04-07 00:49:57,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164016245] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:57,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:57,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:57,101 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:57,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1120145493] [2022-04-07 00:49:57,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1120145493] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:57,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:57,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:57,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082263133] [2022-04-07 00:49:57,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:57,101 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:57,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:57,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:57,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:57,102 INFO L87 Difference]: Start difference. First operand 495 states and 701 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:57,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:57,513 INFO L93 Difference]: Finished difference Result 995 states and 1416 transitions. [2022-04-07 00:49:57,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:57,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 51 [2022-04-07 00:49:57,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:57,515 INFO L225 Difference]: With dead ends: 995 [2022-04-07 00:49:57,515 INFO L226 Difference]: Without dead ends: 514 [2022-04-07 00:49:57,516 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:57,517 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 812 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:57,517 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [812 Valid, 212 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:57,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-04-07 00:49:57,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 504. [2022-04-07 00:49:57,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 499 states have (on average 1.4288577154308617) internal successors, (713), 499 states have internal predecessors, (713), 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) [2022-04-07 00:49:57,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 717 transitions. [2022-04-07 00:49:57,588 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 717 transitions. Word has length 51 [2022-04-07 00:49:57,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:57,588 INFO L478 AbstractCegarLoop]: Abstraction has 504 states and 717 transitions. [2022-04-07 00:49:57,588 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:57,588 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 717 transitions. [2022-04-07 00:49:57,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-07 00:49:57,589 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:57,589 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:49:57,589 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-07 00:49:57,589 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:57,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:57,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1175453866, now seen corresponding path program 1 times [2022-04-07 00:49:57,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:57,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1274433581] [2022-04-07 00:49:57,590 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:57,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1175453866, now seen corresponding path program 2 times [2022-04-07 00:49:57,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:57,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060684591] [2022-04-07 00:49:57,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:57,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:57,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:57,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:57,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:57,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060684591] [2022-04-07 00:49:57,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060684591] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:57,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:57,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:57,617 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:57,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1274433581] [2022-04-07 00:49:57,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1274433581] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:57,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:57,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:57,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67303940] [2022-04-07 00:49:57,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:57,618 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:57,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:57,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:57,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:57,618 INFO L87 Difference]: Start difference. First operand 504 states and 717 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:57,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:57,992 INFO L93 Difference]: Finished difference Result 1045 states and 1487 transitions. [2022-04-07 00:49:57,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:57,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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 64 [2022-04-07 00:49:57,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:57,994 INFO L225 Difference]: With dead ends: 1045 [2022-04-07 00:49:57,994 INFO L226 Difference]: Without dead ends: 555 [2022-04-07 00:49:57,995 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:57,995 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 807 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:57,996 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [807 Valid, 213 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:57,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-04-07 00:49:58,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 549. [2022-04-07 00:49:58,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 544 states have (on average 1.4209558823529411) internal successors, (773), 544 states have internal predecessors, (773), 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) [2022-04-07 00:49:58,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 777 transitions. [2022-04-07 00:49:58,075 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 777 transitions. Word has length 64 [2022-04-07 00:49:58,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:58,075 INFO L478 AbstractCegarLoop]: Abstraction has 549 states and 777 transitions. [2022-04-07 00:49:58,075 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:58,075 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 777 transitions. [2022-04-07 00:49:58,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-07 00:49:58,076 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:58,076 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:49:58,076 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-07 00:49:58,076 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:58,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:58,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1954305357, now seen corresponding path program 1 times [2022-04-07 00:49:58,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:58,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [742891763] [2022-04-07 00:49:58,077 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 00:49:58,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1954305357, now seen corresponding path program 2 times [2022-04-07 00:49:58,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:58,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199324140] [2022-04-07 00:49:58,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:58,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:58,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:58,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:58,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:58,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199324140] [2022-04-07 00:49:58,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199324140] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:58,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:58,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:58,147 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:58,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [742891763] [2022-04-07 00:49:58,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [742891763] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:58,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:58,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:58,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191949145] [2022-04-07 00:49:58,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:58,148 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:58,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:58,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:58,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:58,149 INFO L87 Difference]: Start difference. First operand 549 states and 777 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:58,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:58,529 INFO L93 Difference]: Finished difference Result 1094 states and 1553 transitions. [2022-04-07 00:49:58,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:58,530 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 65 [2022-04-07 00:49:58,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:58,531 INFO L225 Difference]: With dead ends: 1094 [2022-04-07 00:49:58,531 INFO L226 Difference]: Without dead ends: 557 [2022-04-07 00:49:58,532 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:58,534 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 815 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:58,534 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [815 Valid, 211 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:58,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-04-07 00:49:58,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 551. [2022-04-07 00:49:58,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.4212454212454213) internal successors, (776), 546 states have internal predecessors, (776), 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) [2022-04-07 00:49:58,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 780 transitions. [2022-04-07 00:49:58,622 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 780 transitions. Word has length 65 [2022-04-07 00:49:58,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:58,622 INFO L478 AbstractCegarLoop]: Abstraction has 551 states and 780 transitions. [2022-04-07 00:49:58,622 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:58,622 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 780 transitions. [2022-04-07 00:49:58,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-04-07 00:49:58,623 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:58,623 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-04-07 00:49:58,623 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-07 00:49:58,623 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:58,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:58,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1606826053, now seen corresponding path program 1 times [2022-04-07 00:49:58,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:58,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1992349405] [2022-04-07 00:49:58,635 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:49:58,635 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:49:58,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1606826053, now seen corresponding path program 2 times [2022-04-07 00:49:58,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:58,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563392613] [2022-04-07 00:49:58,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:58,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:58,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:58,667 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:58,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:58,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563392613] [2022-04-07 00:49:58,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563392613] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:58,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:58,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:58,667 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:58,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1992349405] [2022-04-07 00:49:58,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1992349405] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:58,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:58,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:58,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335726555] [2022-04-07 00:49:58,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:58,668 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:58,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:58,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:58,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:58,669 INFO L87 Difference]: Start difference. First operand 551 states and 780 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:59,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:59,078 INFO L93 Difference]: Finished difference Result 1130 states and 1597 transitions. [2022-04-07 00:49:59,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:59,078 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 85 [2022-04-07 00:49:59,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:59,080 INFO L225 Difference]: With dead ends: 1130 [2022-04-07 00:49:59,080 INFO L226 Difference]: Without dead ends: 593 [2022-04-07 00:49:59,081 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:59,081 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 787 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:59,082 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [787 Valid, 210 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:59,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-04-07 00:49:59,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 590. [2022-04-07 00:49:59,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 585 states have (on average 1.4085470085470086) internal successors, (824), 585 states have internal predecessors, (824), 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) [2022-04-07 00:49:59,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 828 transitions. [2022-04-07 00:49:59,200 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 828 transitions. Word has length 85 [2022-04-07 00:49:59,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:59,200 INFO L478 AbstractCegarLoop]: Abstraction has 590 states and 828 transitions. [2022-04-07 00:49:59,201 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:59,201 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 828 transitions. [2022-04-07 00:49:59,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-04-07 00:49:59,201 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:59,201 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-04-07 00:49:59,202 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-07 00:49:59,202 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:59,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:59,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1495101646, now seen corresponding path program 1 times [2022-04-07 00:49:59,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:59,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [896066690] [2022-04-07 00:49:59,204 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:49:59,204 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:49:59,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1495101646, now seen corresponding path program 2 times [2022-04-07 00:49:59,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:59,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545371979] [2022-04-07 00:49:59,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:59,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:59,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:59,231 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 00:49:59,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:59,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545371979] [2022-04-07 00:49:59,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545371979] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:59,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:59,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:59,231 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:59,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [896066690] [2022-04-07 00:49:59,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [896066690] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:59,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:59,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:59,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792686207] [2022-04-07 00:49:59,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:59,232 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:59,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:59,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:59,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:59,232 INFO L87 Difference]: Start difference. First operand 590 states and 828 transitions. Second operand has 6 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:59,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:49:59,640 INFO L93 Difference]: Finished difference Result 1169 states and 1642 transitions. [2022-04-07 00:49:59,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:49:59,640 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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 86 [2022-04-07 00:49:59,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:49:59,643 INFO L225 Difference]: With dead ends: 1169 [2022-04-07 00:49:59,643 INFO L226 Difference]: Without dead ends: 593 [2022-04-07 00:49:59,648 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:49:59,648 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 790 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-07 00:49:59,649 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [790 Valid, 210 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-07 00:49:59,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-04-07 00:49:59,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 590. [2022-04-07 00:49:59,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 585 states have (on average 1.4034188034188033) internal successors, (821), 585 states have internal predecessors, (821), 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) [2022-04-07 00:49:59,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 825 transitions. [2022-04-07 00:49:59,807 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 825 transitions. Word has length 86 [2022-04-07 00:49:59,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:49:59,807 INFO L478 AbstractCegarLoop]: Abstraction has 590 states and 825 transitions. [2022-04-07 00:49:59,807 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:49:59,808 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 825 transitions. [2022-04-07 00:49:59,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-04-07 00:49:59,809 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:49:59,809 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:49:59,809 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-07 00:49:59,809 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:49:59,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:49:59,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1623968077, now seen corresponding path program 1 times [2022-04-07 00:49:59,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:59,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1349826919] [2022-04-07 00:49:59,812 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:49:59,812 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:49:59,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1623968077, now seen corresponding path program 2 times [2022-04-07 00:49:59,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:49:59,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815598979] [2022-04-07 00:49:59,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:49:59,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:49:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:59,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:49:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:49:59,849 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-07 00:49:59,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:49:59,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815598979] [2022-04-07 00:49:59,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815598979] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:59,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:59,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:59,850 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:49:59,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1349826919] [2022-04-07 00:49:59,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1349826919] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:49:59,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:49:59,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:49:59,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815019825] [2022-04-07 00:49:59,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:49:59,850 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:49:59,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:49:59,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:49:59,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:49:59,851 INFO L87 Difference]: Start difference. First operand 590 states and 825 transitions. Second operand has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:00,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:00,246 INFO L93 Difference]: Finished difference Result 1217 states and 1699 transitions. [2022-04-07 00:50:00,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:00,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 105 [2022-04-07 00:50:00,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:00,248 INFO L225 Difference]: With dead ends: 1217 [2022-04-07 00:50:00,249 INFO L226 Difference]: Without dead ends: 641 [2022-04-07 00:50:00,250 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:00,250 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 809 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:00,250 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [809 Valid, 213 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:00,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-04-07 00:50:00,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 634. [2022-04-07 00:50:00,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 629 states have (on average 1.3910969793322734) internal successors, (875), 629 states have internal predecessors, (875), 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) [2022-04-07 00:50:00,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 879 transitions. [2022-04-07 00:50:00,357 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 879 transitions. Word has length 105 [2022-04-07 00:50:00,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:00,357 INFO L478 AbstractCegarLoop]: Abstraction has 634 states and 879 transitions. [2022-04-07 00:50:00,357 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:00,357 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 879 transitions. [2022-04-07 00:50:00,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-04-07 00:50:00,358 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:00,358 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:00,358 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-07 00:50:00,358 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:00,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:00,359 INFO L85 PathProgramCache]: Analyzing trace with hash 2110900732, now seen corresponding path program 1 times [2022-04-07 00:50:00,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:00,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [342240711] [2022-04-07 00:50:00,361 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:00,361 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:00,361 INFO L85 PathProgramCache]: Analyzing trace with hash 2110900732, now seen corresponding path program 2 times [2022-04-07 00:50:00,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:00,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091930046] [2022-04-07 00:50:00,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:00,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:00,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:00,389 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-07 00:50:00,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:00,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091930046] [2022-04-07 00:50:00,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091930046] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:00,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:00,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:00,390 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:00,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [342240711] [2022-04-07 00:50:00,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [342240711] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:00,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:00,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:00,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978031173] [2022-04-07 00:50:00,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:00,390 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:00,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:00,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:00,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:00,391 INFO L87 Difference]: Start difference. First operand 634 states and 879 transitions. Second operand has 6 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:00,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:00,802 INFO L93 Difference]: Finished difference Result 1261 states and 1751 transitions. [2022-04-07 00:50:00,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:00,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 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 106 [2022-04-07 00:50:00,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:00,805 INFO L225 Difference]: With dead ends: 1261 [2022-04-07 00:50:00,805 INFO L226 Difference]: Without dead ends: 635 [2022-04-07 00:50:00,806 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:00,806 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 810 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:00,807 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [810 Valid, 212 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:00,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-04-07 00:50:00,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 628. [2022-04-07 00:50:00,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 623 states have (on average 1.3868378812199036) internal successors, (864), 623 states have internal predecessors, (864), 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) [2022-04-07 00:50:00,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 868 transitions. [2022-04-07 00:50:00,916 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 868 transitions. Word has length 106 [2022-04-07 00:50:00,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:00,916 INFO L478 AbstractCegarLoop]: Abstraction has 628 states and 868 transitions. [2022-04-07 00:50:00,916 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:00,916 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 868 transitions. [2022-04-07 00:50:00,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-04-07 00:50:00,917 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:00,917 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:00,917 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-07 00:50:00,917 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:00,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:00,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1189279029, now seen corresponding path program 1 times [2022-04-07 00:50:00,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:00,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [410885955] [2022-04-07 00:50:00,921 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:00,921 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:00,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1189279029, now seen corresponding path program 2 times [2022-04-07 00:50:00,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:00,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878572468] [2022-04-07 00:50:00,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:00,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:00,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:00,950 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-04-07 00:50:00,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:00,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878572468] [2022-04-07 00:50:00,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878572468] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:00,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:00,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:00,950 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:00,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [410885955] [2022-04-07 00:50:00,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [410885955] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:00,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:00,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:00,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259818359] [2022-04-07 00:50:00,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:00,951 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:00,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:00,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:00,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:00,951 INFO L87 Difference]: Start difference. First operand 628 states and 868 transitions. Second operand has 6 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:01,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:01,344 INFO L93 Difference]: Finished difference Result 1282 states and 1769 transitions. [2022-04-07 00:50:01,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:01,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 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 118 [2022-04-07 00:50:01,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:01,346 INFO L225 Difference]: With dead ends: 1282 [2022-04-07 00:50:01,346 INFO L226 Difference]: Without dead ends: 668 [2022-04-07 00:50:01,347 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:01,348 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 781 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:01,348 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [781 Valid, 210 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:01,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2022-04-07 00:50:01,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 665. [2022-04-07 00:50:01,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 660 states have (on average 1.3727272727272728) internal successors, (906), 660 states have internal predecessors, (906), 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) [2022-04-07 00:50:01,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 910 transitions. [2022-04-07 00:50:01,481 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 910 transitions. Word has length 118 [2022-04-07 00:50:01,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:01,481 INFO L478 AbstractCegarLoop]: Abstraction has 665 states and 910 transitions. [2022-04-07 00:50:01,481 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:01,481 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 910 transitions. [2022-04-07 00:50:01,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-04-07 00:50:01,482 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:01,482 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:01,482 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-07 00:50:01,482 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:01,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:01,482 INFO L85 PathProgramCache]: Analyzing trace with hash 478129772, now seen corresponding path program 1 times [2022-04-07 00:50:01,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:01,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [304190270] [2022-04-07 00:50:01,485 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:01,486 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:01,486 INFO L85 PathProgramCache]: Analyzing trace with hash 478129772, now seen corresponding path program 2 times [2022-04-07 00:50:01,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:01,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510348309] [2022-04-07 00:50:01,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:01,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:01,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:01,517 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-04-07 00:50:01,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:01,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510348309] [2022-04-07 00:50:01,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510348309] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:01,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:01,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:01,518 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:01,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [304190270] [2022-04-07 00:50:01,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [304190270] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:01,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:01,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 00:50:01,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500128010] [2022-04-07 00:50:01,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:01,518 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 00:50:01,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:01,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 00:50:01,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:01,519 INFO L87 Difference]: Start difference. First operand 665 states and 910 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:01,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:01,908 INFO L93 Difference]: Finished difference Result 1319 states and 1806 transitions. [2022-04-07 00:50:01,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 00:50:01,908 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 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 119 [2022-04-07 00:50:01,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:01,910 INFO L225 Difference]: With dead ends: 1319 [2022-04-07 00:50:01,910 INFO L226 Difference]: Without dead ends: 666 [2022-04-07 00:50:01,911 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-07 00:50:01,911 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 784 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:01,912 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [784 Valid, 210 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:01,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-04-07 00:50:02,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 663. [2022-04-07 00:50:02,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 658 states have (on average 1.364741641337386) internal successors, (898), 658 states have internal predecessors, (898), 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) [2022-04-07 00:50:02,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 902 transitions. [2022-04-07 00:50:02,049 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 902 transitions. Word has length 119 [2022-04-07 00:50:02,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:02,050 INFO L478 AbstractCegarLoop]: Abstraction has 663 states and 902 transitions. [2022-04-07 00:50:02,050 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:02,050 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 902 transitions. [2022-04-07 00:50:02,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-04-07 00:50:02,051 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:02,051 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:02,052 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-07 00:50:02,052 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:02,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:02,052 INFO L85 PathProgramCache]: Analyzing trace with hash 12487925, now seen corresponding path program 1 times [2022-04-07 00:50:02,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:02,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1209089777] [2022-04-07 00:50:02,058 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:02,058 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:02,058 INFO L85 PathProgramCache]: Analyzing trace with hash 12487925, now seen corresponding path program 2 times [2022-04-07 00:50:02,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:02,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241145463] [2022-04-07 00:50:02,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:02,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:02,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:02,093 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-04-07 00:50:02,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:02,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241145463] [2022-04-07 00:50:02,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241145463] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:02,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:02,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:02,094 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:02,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1209089777] [2022-04-07 00:50:02,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1209089777] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:02,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:02,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:02,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161147948] [2022-04-07 00:50:02,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:02,095 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:02,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:02,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:02,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:02,095 INFO L87 Difference]: Start difference. First operand 663 states and 902 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 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) [2022-04-07 00:50:02,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:02,592 INFO L93 Difference]: Finished difference Result 1960 states and 2669 transitions. [2022-04-07 00:50:02,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:02,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-04-07 00:50:02,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:02,596 INFO L225 Difference]: With dead ends: 1960 [2022-04-07 00:50:02,596 INFO L226 Difference]: Without dead ends: 1311 [2022-04-07 00:50:02,597 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:50:02,599 INFO L913 BasicCegarLoop]: 322 mSDtfsCounter, 533 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:02,599 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [533 Valid, 329 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:02,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2022-04-07 00:50:02,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1309. [2022-04-07 00:50:02,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1309 states, 1304 states have (on average 1.3466257668711656) internal successors, (1756), 1304 states have internal predecessors, (1756), 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) [2022-04-07 00:50:02,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1309 states to 1309 states and 1760 transitions. [2022-04-07 00:50:02,850 INFO L78 Accepts]: Start accepts. Automaton has 1309 states and 1760 transitions. Word has length 139 [2022-04-07 00:50:02,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:02,850 INFO L478 AbstractCegarLoop]: Abstraction has 1309 states and 1760 transitions. [2022-04-07 00:50:02,850 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 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) [2022-04-07 00:50:02,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1309 states and 1760 transitions. [2022-04-07 00:50:02,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-04-07 00:50:02,853 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:02,853 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:02,853 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-07 00:50:02,853 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:02,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:02,853 INFO L85 PathProgramCache]: Analyzing trace with hash -998629325, now seen corresponding path program 1 times [2022-04-07 00:50:02,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:02,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [438605954] [2022-04-07 00:50:02,859 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:02,859 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:02,859 INFO L85 PathProgramCache]: Analyzing trace with hash -998629325, now seen corresponding path program 2 times [2022-04-07 00:50:02,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:02,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592956329] [2022-04-07 00:50:02,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:02,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:02,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:02,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:02,898 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-07 00:50:02,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:02,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592956329] [2022-04-07 00:50:02,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592956329] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-07 00:50:02,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189839271] [2022-04-07 00:50:02,899 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-07 00:50:02,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 00:50:02,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 00:50:02,923 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-07 00:50:02,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-07 00:50:02,989 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-04-07 00:50:02,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-07 00:50:02,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-07 00:50:02,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 00:50:03,217 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-04-07 00:50:03,217 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-07 00:50:03,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189839271] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:03,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-07 00:50:03,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2022-04-07 00:50:03,227 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:03,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [438605954] [2022-04-07 00:50:03,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [438605954] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:03,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:03,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:03,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013681654] [2022-04-07 00:50:03,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:03,227 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:03,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:03,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:03,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:03,228 INFO L87 Difference]: Start difference. First operand 1309 states and 1760 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:03,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:03,697 INFO L93 Difference]: Finished difference Result 2760 states and 3670 transitions. [2022-04-07 00:50:03,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 00:50:03,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-04-07 00:50:03,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:03,701 INFO L225 Difference]: With dead ends: 2760 [2022-04-07 00:50:03,701 INFO L226 Difference]: Without dead ends: 1465 [2022-04-07 00:50:03,702 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-07 00:50:03,703 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 266 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:03,703 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 389 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-07 00:50:03,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2022-04-07 00:50:03,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1297. [2022-04-07 00:50:03,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1297 states, 1292 states have (on average 1.3235294117647058) internal successors, (1710), 1292 states have internal predecessors, (1710), 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) [2022-04-07 00:50:03,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 1714 transitions. [2022-04-07 00:50:03,975 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 1714 transitions. Word has length 139 [2022-04-07 00:50:03,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:03,975 INFO L478 AbstractCegarLoop]: Abstraction has 1297 states and 1714 transitions. [2022-04-07 00:50:03,975 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:03,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 1714 transitions. [2022-04-07 00:50:03,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-04-07 00:50:03,977 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:03,978 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:04,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-07 00:50:04,193 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-04-07 00:50:04,193 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:04,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:04,193 INFO L85 PathProgramCache]: Analyzing trace with hash -677842558, now seen corresponding path program 1 times [2022-04-07 00:50:04,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:04,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2136034079] [2022-04-07 00:50:04,197 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:04,197 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:04,197 INFO L85 PathProgramCache]: Analyzing trace with hash -677842558, now seen corresponding path program 2 times [2022-04-07 00:50:04,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:04,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066326277] [2022-04-07 00:50:04,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:04,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:04,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:04,221 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-04-07 00:50:04,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:04,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066326277] [2022-04-07 00:50:04,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066326277] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:04,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:04,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:04,221 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:04,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2136034079] [2022-04-07 00:50:04,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2136034079] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:04,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:04,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:04,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889527692] [2022-04-07 00:50:04,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:04,222 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:04,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:04,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:04,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:04,222 INFO L87 Difference]: Start difference. First operand 1297 states and 1714 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:04,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:04,857 INFO L93 Difference]: Finished difference Result 3190 states and 4228 transitions. [2022-04-07 00:50:04,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:04,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-04-07 00:50:04,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:04,862 INFO L225 Difference]: With dead ends: 3190 [2022-04-07 00:50:04,862 INFO L226 Difference]: Without dead ends: 1907 [2022-04-07 00:50:04,864 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:50:04,865 INFO L913 BasicCegarLoop]: 420 mSDtfsCounter, 452 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:04,865 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 427 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:04,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2022-04-07 00:50:05,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1905. [2022-04-07 00:50:05,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1905 states, 1900 states have (on average 1.3173684210526315) internal successors, (2503), 1900 states have internal predecessors, (2503), 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) [2022-04-07 00:50:05,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2507 transitions. [2022-04-07 00:50:05,293 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2507 transitions. Word has length 144 [2022-04-07 00:50:05,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:05,293 INFO L478 AbstractCegarLoop]: Abstraction has 1905 states and 2507 transitions. [2022-04-07 00:50:05,293 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:05,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2507 transitions. [2022-04-07 00:50:05,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-04-07 00:50:05,295 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:05,295 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:05,295 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-07 00:50:05,296 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:05,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:05,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1770477760, now seen corresponding path program 1 times [2022-04-07 00:50:05,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:05,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1080014806] [2022-04-07 00:50:05,302 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:05,302 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:05,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1770477760, now seen corresponding path program 2 times [2022-04-07 00:50:05,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:05,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055689495] [2022-04-07 00:50:05,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:05,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:05,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:05,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:05,330 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-04-07 00:50:05,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:05,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055689495] [2022-04-07 00:50:05,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055689495] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:05,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:05,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:05,330 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:05,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1080014806] [2022-04-07 00:50:05,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1080014806] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:05,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:05,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:05,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489545608] [2022-04-07 00:50:05,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:05,331 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:05,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:05,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:05,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:05,332 INFO L87 Difference]: Start difference. First operand 1905 states and 2507 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:06,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:06,130 INFO L93 Difference]: Finished difference Result 4415 states and 5826 transitions. [2022-04-07 00:50:06,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:06,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-04-07 00:50:06,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:06,137 INFO L225 Difference]: With dead ends: 4415 [2022-04-07 00:50:06,137 INFO L226 Difference]: Without dead ends: 2524 [2022-04-07 00:50:06,140 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 [2022-04-07 00:50:06,140 INFO L913 BasicCegarLoop]: 381 mSDtfsCounter, 510 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:06,140 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [510 Valid, 388 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:06,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2022-04-07 00:50:06,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 2522. [2022-04-07 00:50:06,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2522 states, 2517 states have (on average 1.3142630115216527) internal successors, (3308), 2517 states have internal predecessors, (3308), 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) [2022-04-07 00:50:06,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2522 states to 2522 states and 3312 transitions. [2022-04-07 00:50:06,680 INFO L78 Accepts]: Start accepts. Automaton has 2522 states and 3312 transitions. Word has length 144 [2022-04-07 00:50:06,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:06,680 INFO L478 AbstractCegarLoop]: Abstraction has 2522 states and 3312 transitions. [2022-04-07 00:50:06,680 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:06,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2522 states and 3312 transitions. [2022-04-07 00:50:06,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-04-07 00:50:06,683 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:06,683 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:06,683 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-07 00:50:06,683 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:06,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:06,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1020309345, now seen corresponding path program 1 times [2022-04-07 00:50:06,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:06,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [699186613] [2022-04-07 00:50:06,687 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:06,687 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:06,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1020309345, now seen corresponding path program 2 times [2022-04-07 00:50:06,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:06,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968640481] [2022-04-07 00:50:06,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:06,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:06,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:06,748 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 68 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-07 00:50:06,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:06,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968640481] [2022-04-07 00:50:06,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968640481] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-07 00:50:06,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996948589] [2022-04-07 00:50:06,748 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-07 00:50:06,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 00:50:06,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 00:50:06,749 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-07 00:50:06,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-07 00:50:06,833 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-04-07 00:50:06,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-07 00:50:06,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-07 00:50:06,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 00:50:07,035 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-04-07 00:50:07,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-07 00:50:07,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996948589] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:07,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-07 00:50:07,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2022-04-07 00:50:07,035 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:07,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [699186613] [2022-04-07 00:50:07,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [699186613] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:07,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:07,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:07,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292852756] [2022-04-07 00:50:07,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:07,036 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:07,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:07,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:07,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 00:50:07,038 INFO L87 Difference]: Start difference. First operand 2522 states and 3312 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:07,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:07,803 INFO L93 Difference]: Finished difference Result 5278 states and 6901 transitions. [2022-04-07 00:50:07,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:07,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 1 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 150 [2022-04-07 00:50:07,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:07,811 INFO L225 Difference]: With dead ends: 5278 [2022-04-07 00:50:07,811 INFO L226 Difference]: Without dead ends: 2770 [2022-04-07 00:50:07,815 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-07 00:50:07,815 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 199 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:07,816 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 411 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-07 00:50:07,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2022-04-07 00:50:08,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2478. [2022-04-07 00:50:08,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2478 states, 2473 states have (on average 1.315002021835827) internal successors, (3252), 2473 states have internal predecessors, (3252), 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) [2022-04-07 00:50:08,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2478 states to 2478 states and 3256 transitions. [2022-04-07 00:50:08,349 INFO L78 Accepts]: Start accepts. Automaton has 2478 states and 3256 transitions. Word has length 150 [2022-04-07 00:50:08,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:08,349 INFO L478 AbstractCegarLoop]: Abstraction has 2478 states and 3256 transitions. [2022-04-07 00:50:08,349 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:08,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2478 states and 3256 transitions. [2022-04-07 00:50:08,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-04-07 00:50:08,369 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:08,369 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:08,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-07 00:50:08,586 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-04-07 00:50:08,586 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:08,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:08,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1761596367, now seen corresponding path program 1 times [2022-04-07 00:50:08,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:08,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [258092735] [2022-04-07 00:50:08,592 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:08,592 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:08,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1761596367, now seen corresponding path program 2 times [2022-04-07 00:50:08,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:08,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219864562] [2022-04-07 00:50:08,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:08,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:08,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:08,621 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-04-07 00:50:08,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:08,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219864562] [2022-04-07 00:50:08,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219864562] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:08,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:08,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:08,621 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:08,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [258092735] [2022-04-07 00:50:08,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [258092735] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:08,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:08,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:08,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457055110] [2022-04-07 00:50:08,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:08,622 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:08,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:08,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:08,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:08,623 INFO L87 Difference]: Start difference. First operand 2478 states and 3256 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 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) [2022-04-07 00:50:10,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:10,010 INFO L93 Difference]: Finished difference Result 7322 states and 9597 transitions. [2022-04-07 00:50:10,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:10,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 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 160 [2022-04-07 00:50:10,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:10,036 INFO L225 Difference]: With dead ends: 7322 [2022-04-07 00:50:10,036 INFO L226 Difference]: Without dead ends: 4858 [2022-04-07 00:50:10,041 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:50:10,041 INFO L913 BasicCegarLoop]: 456 mSDtfsCounter, 430 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:10,042 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 463 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:10,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4858 states. [2022-04-07 00:50:11,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4858 to 4856. [2022-04-07 00:50:11,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4856 states, 4851 states have (on average 1.3073593073593073) internal successors, (6342), 4851 states have internal predecessors, (6342), 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) [2022-04-07 00:50:11,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4856 states to 4856 states and 6346 transitions. [2022-04-07 00:50:11,127 INFO L78 Accepts]: Start accepts. Automaton has 4856 states and 6346 transitions. Word has length 160 [2022-04-07 00:50:11,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:11,127 INFO L478 AbstractCegarLoop]: Abstraction has 4856 states and 6346 transitions. [2022-04-07 00:50:11,127 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 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) [2022-04-07 00:50:11,127 INFO L276 IsEmpty]: Start isEmpty. Operand 4856 states and 6346 transitions. [2022-04-07 00:50:11,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-04-07 00:50:11,130 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:11,130 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:11,130 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-07 00:50:11,130 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:11,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:11,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1274212563, now seen corresponding path program 1 times [2022-04-07 00:50:11,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:11,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1209540194] [2022-04-07 00:50:11,136 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:11,136 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:11,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1274212563, now seen corresponding path program 2 times [2022-04-07 00:50:11,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:11,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463932818] [2022-04-07 00:50:11,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:11,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:11,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:11,220 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-04-07 00:50:11,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:11,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463932818] [2022-04-07 00:50:11,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463932818] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:11,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:11,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:11,220 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:11,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1209540194] [2022-04-07 00:50:11,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1209540194] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:11,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:11,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:11,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129044451] [2022-04-07 00:50:11,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:11,221 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:11,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:11,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:11,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:11,221 INFO L87 Difference]: Start difference. First operand 4856 states and 6346 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 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) [2022-04-07 00:50:13,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:13,986 INFO L93 Difference]: Finished difference Result 14468 states and 18866 transitions. [2022-04-07 00:50:13,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:13,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 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 162 [2022-04-07 00:50:13,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:14,004 INFO L225 Difference]: With dead ends: 14468 [2022-04-07 00:50:14,004 INFO L226 Difference]: Without dead ends: 9626 [2022-04-07 00:50:14,012 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:50:14,012 INFO L913 BasicCegarLoop]: 469 mSDtfsCounter, 473 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:14,012 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [473 Valid, 476 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:14,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9626 states. [2022-04-07 00:50:15,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9626 to 4856. [2022-04-07 00:50:15,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4856 states, 4851 states have (on average 1.30571016285302) internal successors, (6334), 4851 states have internal predecessors, (6334), 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) [2022-04-07 00:50:15,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4856 states to 4856 states and 6338 transitions. [2022-04-07 00:50:15,558 INFO L78 Accepts]: Start accepts. Automaton has 4856 states and 6338 transitions. Word has length 162 [2022-04-07 00:50:15,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:15,559 INFO L478 AbstractCegarLoop]: Abstraction has 4856 states and 6338 transitions. [2022-04-07 00:50:15,559 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 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) [2022-04-07 00:50:15,559 INFO L276 IsEmpty]: Start isEmpty. Operand 4856 states and 6338 transitions. [2022-04-07 00:50:15,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-04-07 00:50:15,562 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:15,562 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:15,562 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-07 00:50:15,562 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:15,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:15,562 INFO L85 PathProgramCache]: Analyzing trace with hash -827729556, now seen corresponding path program 1 times [2022-04-07 00:50:15,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:15,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1317750501] [2022-04-07 00:50:15,570 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:15,571 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:15,571 INFO L85 PathProgramCache]: Analyzing trace with hash -827729556, now seen corresponding path program 2 times [2022-04-07 00:50:15,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:15,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334153337] [2022-04-07 00:50:15,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:15,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:15,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:15,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 00:50:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 00:50:15,602 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-04-07 00:50:15,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 00:50:15,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334153337] [2022-04-07 00:50:15,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334153337] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:15,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:15,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:15,603 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 00:50:15,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1317750501] [2022-04-07 00:50:15,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1317750501] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 00:50:15,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 00:50:15,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 00:50:15,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284853588] [2022-04-07 00:50:15,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 00:50:15,604 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 00:50:15,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:15,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 00:50:15,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 00:50:15,604 INFO L87 Difference]: Start difference. First operand 4856 states and 6338 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:18,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 00:50:18,948 INFO L93 Difference]: Finished difference Result 14484 states and 18882 transitions. [2022-04-07 00:50:18,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 00:50:18,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-04-07 00:50:18,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 00:50:18,966 INFO L225 Difference]: With dead ends: 14484 [2022-04-07 00:50:18,966 INFO L226 Difference]: Without dead ends: 9642 [2022-04-07 00:50:18,976 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 00:50:18,980 INFO L913 BasicCegarLoop]: 471 mSDtfsCounter, 478 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 00:50:18,980 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [478 Valid, 478 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 00:50:18,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9642 states. [2022-04-07 00:50:20,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9642 to 4864. [2022-04-07 00:50:20,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4864 states, 4859 states have (on average 1.3052068326816217) internal successors, (6342), 4859 states have internal predecessors, (6342), 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) [2022-04-07 00:50:20,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4864 states to 4864 states and 6346 transitions. [2022-04-07 00:50:20,596 INFO L78 Accepts]: Start accepts. Automaton has 4864 states and 6346 transitions. Word has length 163 [2022-04-07 00:50:20,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 00:50:20,596 INFO L478 AbstractCegarLoop]: Abstraction has 4864 states and 6346 transitions. [2022-04-07 00:50:20,596 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 00:50:20,596 INFO L276 IsEmpty]: Start isEmpty. Operand 4864 states and 6346 transitions. [2022-04-07 00:50:20,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-04-07 00:50:20,599 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 00:50:20,599 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 00:50:20,600 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-07 00:50:20,600 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 00:50:20,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 00:50:20,600 INFO L85 PathProgramCache]: Analyzing trace with hash 139621098, now seen corresponding path program 1 times [2022-04-07 00:50:20,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 00:50:20,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1539427399] [2022-04-07 00:50:20,605 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 00:50:20,605 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 00:50:20,605 INFO L85 PathProgramCache]: Analyzing trace with hash 139621098, now seen corresponding path program 2 times [2022-04-07 00:50:20,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 00:50:20,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926413601] [2022-04-07 00:50:20,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 00:50:20,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 00:50:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-07 00:50:20,621 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-07 00:50:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-07 00:50:20,681 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-07 00:50:20,681 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-04-07 00:50:20,681 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-07 00:50:20,683 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-07 00:50:20,684 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-07 00:50:20,686 INFO L719 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] [2022-04-07 00:50:20,688 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-07 00:50:20,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 12:50:20 BoogieIcfgContainer [2022-04-07 00:50:20,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-07 00:50:20,705 INFO L158 Benchmark]: Toolchain (without parser) took 34088.53ms. Allocated memory was 219.2MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 167.8MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 372.2MB. Max. memory is 8.0GB. [2022-04-07 00:50:20,706 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 219.2MB. Free memory is still 184.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-07 00:50:20,706 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.44ms. Allocated memory was 219.2MB in the beginning and 336.6MB in the end (delta: 117.4MB). Free memory was 167.5MB in the beginning and 306.9MB in the end (delta: -139.3MB). Peak memory consumption was 9.5MB. Max. memory is 8.0GB. [2022-04-07 00:50:20,706 INFO L158 Benchmark]: Boogie Preprocessor took 43.87ms. Allocated memory is still 336.6MB. Free memory was 306.9MB in the beginning and 304.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-04-07 00:50:20,706 INFO L158 Benchmark]: RCFGBuilder took 527.73ms. Allocated memory is still 336.6MB. Free memory was 304.2MB in the beginning and 273.8MB in the end (delta: 30.4MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2022-04-07 00:50:20,706 INFO L158 Benchmark]: TraceAbstraction took 33255.17ms. Allocated memory was 336.6MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 273.3MB in the beginning and 1.2GB in the end (delta: -901.3MB). Peak memory consumption was 361.6MB. Max. memory is 8.0GB. [2022-04-07 00:50:20,707 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 219.2MB. Free memory is still 184.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 256.44ms. Allocated memory was 219.2MB in the beginning and 336.6MB in the end (delta: 117.4MB). Free memory was 167.5MB in the beginning and 306.9MB in the end (delta: -139.3MB). Peak memory consumption was 9.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.87ms. Allocated memory is still 336.6MB. Free memory was 306.9MB in the beginning and 304.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 527.73ms. Allocated memory is still 336.6MB. Free memory was 304.2MB in the beginning and 273.8MB in the end (delta: 30.4MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * TraceAbstraction took 33255.17ms. Allocated memory was 336.6MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 273.3MB in the beginning and 1.2GB in the end (delta: -901.3MB). Peak memory consumption was 361.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 709]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L714] int s ; [L715] int tmp ; [L719] s = 8464 [L720] CALL ssl3_accept(s) [L24] int s__info_callback = __VERIFIER_nondet_int() ; [L25] int s__in_handshake = __VERIFIER_nondet_int() ; [L26] int s__state ; [L27] int s__new_session ; [L28] int s__server ; [L29] int s__version = __VERIFIER_nondet_int() ; [L30] int s__type ; [L31] int s__init_num ; [L32] int s__hit = __VERIFIER_nondet_int() ; [L33] int s__rwstate ; [L34] int s__init_buf___0 = 1; [L35] int s__debug = __VERIFIER_nondet_int() ; [L36] int s__shutdown ; [L37] int s__cert = __VERIFIER_nondet_int() ; [L38] int s__options = __VERIFIER_nondet_int() ; [L39] int s__verify_mode = __VERIFIER_nondet_int() ; [L40] int s__session__peer = __VERIFIER_nondet_int() ; [L41] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L42] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L43] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L44] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L45] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L46] int s__s3__tmp__cert_request ; [L47] int s__s3__tmp__reuse_message ; [L48] int s__s3__tmp__use_rsa_tmp ; [L49] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L50] int s__s3__tmp__new_cipher__algorithms ; [L51] int s__s3__tmp__next_state___0 ; [L52] int s__s3__tmp__new_cipher__algo_strength ; [L53] int s__session__cipher ; [L54] int buf ; [L55] unsigned long l ; [L56] unsigned long Time ; [L57] unsigned long tmp ; [L58] int cb ; [L59] long num1 = __VERIFIER_nondet_long() ; [L60] int ret ; [L61] int new_state ; [L62] int state ; [L63] int skip ; [L64] int got_new_session ; [L65] int tmp___1 = __VERIFIER_nondet_int() ; [L66] int tmp___2 = __VERIFIER_nondet_int() ; [L67] int tmp___3 = __VERIFIER_nondet_int() ; [L68] int tmp___4 = __VERIFIER_nondet_int() ; [L69] int tmp___5 = __VERIFIER_nondet_int() ; [L70] int tmp___6 = __VERIFIER_nondet_int() ; [L71] int tmp___7 ; [L72] long tmp___8 = __VERIFIER_nondet_long() ; [L73] int tmp___9 = __VERIFIER_nondet_int() ; [L74] int tmp___10 = __VERIFIER_nondet_int() ; [L75] int blastFlag ; [L76] int __cil_tmp55 ; [L77] unsigned long __cil_tmp56 ; [L78] unsigned long __cil_tmp57 ; [L79] unsigned long __cil_tmp58 ; [L80] unsigned long __cil_tmp59 ; [L81] int __cil_tmp60 ; [L82] unsigned long __cil_tmp61 = __VERIFIER_nondet_ulong() ; [L86] s__state = initial_state [L87] blastFlag = 0 [L88] tmp = __VERIFIER_nondet_int() [L89] Time = tmp [L90] cb = 0 [L91] ret = -1 [L92] skip = 0 [L93] got_new_session = 0 [L94] COND TRUE s__info_callback != 0 [L95] cb = s__info_callback [L101] s__in_handshake ++ [L102] COND FALSE !(tmp___1 + 12288) [L107] COND FALSE !(s__cert == 0) [L111] COND TRUE 1 [L113] state = s__state [L114] COND FALSE !(s__state == 12292) [L117] COND FALSE !(s__state == 16384) [L120] COND FALSE !(s__state == 8192) [L123] COND FALSE !(s__state == 24576) [L126] COND FALSE !(s__state == 8195) [L129] COND FALSE !(s__state == 8480) [L132] COND FALSE !(s__state == 8481) [L135] COND FALSE !(s__state == 8482) [L138] COND TRUE s__state == 8464 [L284] s__shutdown = 0 [L285] ret = __VERIFIER_nondet_int() [L286] COND TRUE blastFlag == 0 [L287] blastFlag = 1 [L289] COND FALSE !(ret <= 0) [L292] got_new_session = 1 [L293] s__state = 8496 [L294] s__init_num = 0 [L663] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L664] COND FALSE !(! s__s3__tmp__reuse_message) [L698] skip = 0 [L111] COND TRUE 1 [L113] state = s__state [L114] COND FALSE !(s__state == 12292) [L117] COND FALSE !(s__state == 16384) [L120] COND FALSE !(s__state == 8192) [L123] COND FALSE !(s__state == 24576) [L126] COND FALSE !(s__state == 8195) [L129] COND FALSE !(s__state == 8480) [L132] COND FALSE !(s__state == 8481) [L135] COND FALSE !(s__state == 8482) [L138] COND FALSE !(s__state == 8464) [L141] COND FALSE !(s__state == 8465) [L144] COND FALSE !(s__state == 8466) [L147] COND TRUE s__state == 8496 [L298] ret = __VERIFIER_nondet_int() [L299] COND TRUE blastFlag == 1 [L300] blastFlag = 2 [L302] COND FALSE !(ret <= 0) [L305] COND FALSE !(\read(s__hit)) [L308] s__state = 8512 [L310] s__init_num = 0 [L663] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L664] COND FALSE !(! s__s3__tmp__reuse_message) [L698] skip = 0 [L111] COND TRUE 1 [L113] state = s__state [L114] COND FALSE !(s__state == 12292) [L117] COND FALSE !(s__state == 16384) [L120] COND FALSE !(s__state == 8192) [L123] COND FALSE !(s__state == 24576) [L126] COND FALSE !(s__state == 8195) [L129] COND FALSE !(s__state == 8480) [L132] COND FALSE !(s__state == 8481) [L135] COND FALSE !(s__state == 8482) [L138] COND FALSE !(s__state == 8464) [L141] COND FALSE !(s__state == 8465) [L144] COND FALSE !(s__state == 8466) [L147] COND FALSE !(s__state == 8496) [L150] COND FALSE !(s__state == 8497) [L153] COND TRUE s__state == 8512 [L315] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L316] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L317] COND TRUE __cil_tmp56 + 256UL [L318] __cil_tmp56 = 256345 [L319] skip = 1 [L330] s__state = 8528 [L331] s__init_num = 0 [L663] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L664] COND FALSE !(! s__s3__tmp__reuse_message) [L698] skip = 0 [L111] COND TRUE 1 [L113] state = s__state [L114] COND FALSE !(s__state == 12292) [L117] COND FALSE !(s__state == 16384) [L120] COND FALSE !(s__state == 8192) [L123] COND FALSE !(s__state == 24576) [L126] COND FALSE !(s__state == 8195) [L129] COND FALSE !(s__state == 8480) [L132] COND FALSE !(s__state == 8481) [L135] COND FALSE !(s__state == 8482) [L138] COND FALSE !(s__state == 8464) [L141] COND FALSE !(s__state == 8465) [L144] COND FALSE !(s__state == 8466) [L147] COND FALSE !(s__state == 8496) [L150] COND FALSE !(s__state == 8497) [L153] COND FALSE !(s__state == 8512) [L156] COND FALSE !(s__state == 8513) [L159] COND TRUE s__state == 8528 [L335] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L336] l = (unsigned long )s__s3__tmp__new_cipher__algorithms [L338] __cil_tmp57 = (unsigned long )s__options [L339] COND TRUE __cil_tmp57 + 2097152UL [L340] s__s3__tmp__use_rsa_tmp = 1 [L345] COND TRUE \read(s__s3__tmp__use_rsa_tmp) [L373] ret = __VERIFIER_nondet_int() [L374] COND FALSE !(blastFlag == 3) [L377] COND FALSE !(ret <= 0) [L394] s__state = 8544 [L395] s__init_num = 0 [L663] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L664] COND FALSE !(! s__s3__tmp__reuse_message) [L698] skip = 0 [L111] COND TRUE 1 [L113] state = s__state [L114] COND FALSE !(s__state == 12292) [L117] COND FALSE !(s__state == 16384) [L120] COND FALSE !(s__state == 8192) [L123] COND FALSE !(s__state == 24576) [L126] COND FALSE !(s__state == 8195) [L129] COND FALSE !(s__state == 8480) [L132] COND FALSE !(s__state == 8481) [L135] COND FALSE !(s__state == 8482) [L138] COND FALSE !(s__state == 8464) [L141] COND FALSE !(s__state == 8465) [L144] COND FALSE !(s__state == 8466) [L147] COND FALSE !(s__state == 8496) [L150] COND FALSE !(s__state == 8497) [L153] COND FALSE !(s__state == 8512) [L156] COND FALSE !(s__state == 8513) [L159] COND FALSE !(s__state == 8528) [L162] COND FALSE !(s__state == 8529) [L165] COND TRUE s__state == 8544 [L399] COND TRUE s__verify_mode + 1 [L400] COND TRUE s__session__peer != 0 [L401] COND TRUE s__verify_mode + 4 [L402] s__verify_mode = 123 [L403] skip = 1 [L404] s__s3__tmp__cert_request = 0 [L405] s__state = 8560 [L663] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L664] COND FALSE !(! s__s3__tmp__reuse_message) [L698] skip = 0 [L111] COND TRUE 1 [L113] state = s__state [L114] COND FALSE !(s__state == 12292) [L117] COND FALSE !(s__state == 16384) [L120] COND FALSE !(s__state == 8192) [L123] COND FALSE !(s__state == 24576) [L126] COND FALSE !(s__state == 8195) [L129] COND FALSE !(s__state == 8480) [L132] COND FALSE !(s__state == 8481) [L135] COND FALSE !(s__state == 8482) [L138] COND FALSE !(s__state == 8464) [L141] COND FALSE !(s__state == 8465) [L144] COND FALSE !(s__state == 8466) [L147] COND FALSE !(s__state == 8496) [L150] COND FALSE !(s__state == 8497) [L153] COND FALSE !(s__state == 8512) [L156] COND FALSE !(s__state == 8513) [L159] COND FALSE !(s__state == 8528) [L162] COND FALSE !(s__state == 8529) [L165] COND FALSE !(s__state == 8544) [L168] COND FALSE !(s__state == 8545) [L171] COND TRUE s__state == 8560 [L449] ret = __VERIFIER_nondet_int() [L450] COND FALSE !(ret <= 0) [L453] s__s3__tmp__next_state___0 = 8576 [L454] s__state = 8448 [L455] s__init_num = 0 [L663] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L664] COND TRUE ! s__s3__tmp__reuse_message [L665] COND TRUE ! skip [L666] COND TRUE state == 8560 [L667] COND TRUE s__state == 8448 [L668] COND TRUE s__verify_mode != -1 [L669] COND TRUE s__verify_mode != -2 [L670] COND TRUE __cil_tmp61 != 9021 [L671] COND TRUE __cil_tmp58 != 4294967294 [L672] COND TRUE blastFlag != 4 [L673] COND TRUE tmp___7 != 1024 [L709] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 179 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 33.2s, OverallIterations: 41, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 21.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27979 SdHoareTripleChecker+Valid, 9.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27979 mSDsluCounter, 10041 SdHoareTripleChecker+Invalid, 7.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 979 mSDsCounter, 1634 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13610 IncrementalHoareTripleChecker+Invalid, 15244 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1634 mSolverCounterUnsat, 9062 mSDtfsCounter, 13610 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 666 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 250 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4864occurred in iteration=40, InterpolantAutomatonStates: 224, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 8.1s AutomataMinimizationTime, 40 MinimizatonAttempts, 10230 StatesRemovedByMinimization, 38 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-04-07 00:50:20,729 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...