/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/loops/s3.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 17:46:28,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 17:46:28,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 17:46:28,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 17:46:28,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 17:46:28,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 17:46:28,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 17:46:28,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 17:46:28,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 17:46:28,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 17:46:28,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 17:46:28,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 17:46:28,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 17:46:28,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 17:46:28,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 17:46:28,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 17:46:28,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 17:46:28,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 17:46:28,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 17:46:28,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 17:46:28,588 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 17:46:28,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 17:46:28,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 17:46:28,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 17:46:28,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 17:46:28,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-20 17:46:28,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 17:46:28,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 17:46:28,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 17:46:28,614 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-03-20 17:46:28,625 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 17:46:28,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 17:46:28,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 17:46:28,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 17:46:28,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 17:46:28,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 17:46:28,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 17:46:28,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 17:46:28,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 17:46:28,629 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 17:46:28,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 17:46:28,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 17:46:28,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 17:46:28,629 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 17:46:28,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 17:46:28,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 17:46:28,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 17:46:28,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 17:46:28,630 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 17:46:28,630 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 17:46:28,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 17:46:28,630 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-20 17:46:28,630 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 17:46:28,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 17:46:28,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 17:46:28,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 17:46:28,813 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 17:46:28,816 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 17:46:28,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/s3.i [2022-03-20 17:46:28,867 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec7939935/f1a0e6a3133e4c3ea3359e4331f98920/FLAG308dab0fa [2022-03-20 17:46:29,269 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 17:46:29,270 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/s3.i [2022-03-20 17:46:29,287 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec7939935/f1a0e6a3133e4c3ea3359e4331f98920/FLAG308dab0fa [2022-03-20 17:46:29,642 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec7939935/f1a0e6a3133e4c3ea3359e4331f98920 [2022-03-20 17:46:29,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 17:46:29,645 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 17:46:29,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 17:46:29,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 17:46:29,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 17:46:29,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 05:46:29" (1/1) ... [2022-03-20 17:46:29,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c40f420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:46:29, skipping insertion in model container [2022-03-20 17:46:29,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 05:46:29" (1/1) ... [2022-03-20 17:46:29,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 17:46:29,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 17:46:29,993 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/s3.i[64167,64180] [2022-03-20 17:46:30,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 17:46:30,015 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 17:46:30,081 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/s3.i[64167,64180] [2022-03-20 17:46:30,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 17:46:30,096 INFO L208 MainTranslator]: Completed translation [2022-03-20 17:46:30,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:46:30 WrapperNode [2022-03-20 17:46:30,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 17:46:30,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 17:46:30,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 17:46:30,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 17:46:30,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:46:30" (1/1) ... [2022-03-20 17:46:30,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:46:30" (1/1) ... [2022-03-20 17:46:30,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:46:30" (1/1) ... [2022-03-20 17:46:30,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:46:30" (1/1) ... [2022-03-20 17:46:30,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:46:30" (1/1) ... [2022-03-20 17:46:30,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:46:30" (1/1) ... [2022-03-20 17:46:30,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:46:30" (1/1) ... [2022-03-20 17:46:30,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 17:46:30,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 17:46:30,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 17:46:30,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 17:46:30,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:46:30" (1/1) ... [2022-03-20 17:46:30,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 17:46:30,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 17:46:30,246 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) [2022-03-20 17:46:30,265 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 [2022-03-20 17:46:30,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 17:46:30,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 17:46:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 17:46:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-03-20 17:46:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-03-20 17:46:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 17:46:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-03-20 17:46:30,284 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 17:46:30,285 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 17:46:30,285 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 17:46:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 17:46:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 17:46:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 17:46:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 17:46:30,286 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 17:46:30,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 17:46:30,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 17:46:30,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 17:46:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 17:46:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-03-20 17:46:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 17:46:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-03-20 17:46:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-03-20 17:46:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 17:46:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 17:46:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 17:46:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 17:46:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 17:46:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 17:46:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 17:46:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 17:46:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 17:46:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 17:46:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 17:46:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 17:46:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 17:46:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 17:46:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 17:46:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 17:46:30,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 17:46:30,469 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 17:46:30,470 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 17:46:32,807 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:46:33,154 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-03-20 17:46:33,154 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-03-20 17:46:33,165 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 17:46:33,176 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 17:46:33,177 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 17:46:33,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 05:46:33 BoogieIcfgContainer [2022-03-20 17:46:33,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 17:46:33,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 17:46:33,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 17:46:33,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 17:46:33,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 05:46:29" (1/3) ... [2022-03-20 17:46:33,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f63d761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 05:46:33, skipping insertion in model container [2022-03-20 17:46:33,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:46:30" (2/3) ... [2022-03-20 17:46:33,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f63d761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 05:46:33, skipping insertion in model container [2022-03-20 17:46:33,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 05:46:33" (3/3) ... [2022-03-20 17:46:33,185 INFO L111 eAbstractionObserver]: Analyzing ICFG s3.i [2022-03-20 17:46:33,189 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 17:46:33,189 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 17:46:33,219 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 17:46:33,223 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 [2022-03-20 17:46:33,224 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 17:46:33,236 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 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) [2022-03-20 17:46:33,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-20 17:46:33,243 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:46:33,243 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:46:33,244 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:46:33,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:46:33,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1896540148, now seen corresponding path program 1 times [2022-03-20 17:46:33,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:46:33,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [266884226] [2022-03-20 17:46:33,261 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:46:33,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1896540148, now seen corresponding path program 2 times [2022-03-20 17:46:33,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:46:33,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472024106] [2022-03-20 17:46:33,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:46:33,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:46:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:46:33,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:46:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:46:33,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 17:46:33,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:46:33,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472024106] [2022-03-20 17:46:33,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472024106] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:46:33,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:46:33,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:46:33,712 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:46:33,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [266884226] [2022-03-20 17:46:33,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [266884226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:46:33,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:46:33,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:46:33,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341822350] [2022-03-20 17:46:33,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:46:33,727 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:46:33,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:46:33,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:46:33,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:46:33,762 INFO L87 Difference]: Start difference. First operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:46:35,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:46:36,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:46:36,312 INFO L93 Difference]: Finished difference Result 385 states and 637 transitions. [2022-03-20 17:46:36,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:46:36,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-03-20 17:46:36,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:46:36,325 INFO L225 Difference]: With dead ends: 385 [2022-03-20 17:46:36,325 INFO L226 Difference]: Without dead ends: 223 [2022-03-20 17:46:36,327 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:46:36,329 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 179 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:46:36,330 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 419 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 237 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:46:36,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-03-20 17:46:36,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2022-03-20 17:46:36,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 218 states have (on average 1.481651376146789) internal successors, (323), 218 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) [2022-03-20 17:46:36,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 327 transitions. [2022-03-20 17:46:36,394 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 327 transitions. Word has length 30 [2022-03-20 17:46:36,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:46:36,395 INFO L478 AbstractCegarLoop]: Abstraction has 223 states and 327 transitions. [2022-03-20 17:46:36,395 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 17:46:36,396 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 327 transitions. [2022-03-20 17:46:36,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-03-20 17:46:36,400 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:46:36,400 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:46:36,401 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 17:46:36,402 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:46:36,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:46:36,402 INFO L85 PathProgramCache]: Analyzing trace with hash 969835136, now seen corresponding path program 1 times [2022-03-20 17:46:36,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:46:36,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [578569808] [2022-03-20 17:46:36,405 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:46:36,405 INFO L85 PathProgramCache]: Analyzing trace with hash 969835136, now seen corresponding path program 2 times [2022-03-20 17:46:36,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:46:36,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245717900] [2022-03-20 17:46:36,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:46:36,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:46:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:46:36,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:46:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:46:36,591 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 17:46:36,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:46:36,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245717900] [2022-03-20 17:46:36,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245717900] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:46:36,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:46:36,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:46:36,593 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:46:36,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [578569808] [2022-03-20 17:46:36,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [578569808] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:46:36,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:46:36,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:46:36,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886883039] [2022-03-20 17:46:36,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:46:36,594 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:46:36,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:46:36,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:46:36,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:46:36,595 INFO L87 Difference]: Start difference. First operand 223 states and 327 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2022-03-20 17:46:38,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:46:39,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:46:39,073 INFO L93 Difference]: Finished difference Result 432 states and 642 transitions. [2022-03-20 17:46:39,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:46:39,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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 45 [2022-03-20 17:46:39,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:46:39,076 INFO L225 Difference]: With dead ends: 432 [2022-03-20 17:46:39,076 INFO L226 Difference]: Without dead ends: 325 [2022-03-20 17:46:39,076 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:46:39,077 INFO L913 BasicCegarLoop]: 312 mSDtfsCounter, 126 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:46:39,078 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 476 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 336 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:46:39,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-03-20 17:46:39,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2022-03-20 17:46:39,090 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) [2022-03-20 17:46:39,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 476 transitions. [2022-03-20 17:46:39,091 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 476 transitions. Word has length 45 [2022-03-20 17:46:39,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:46:39,092 INFO L478 AbstractCegarLoop]: Abstraction has 325 states and 476 transitions. [2022-03-20 17:46:39,092 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2022-03-20 17:46:39,092 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 476 transitions. [2022-03-20 17:46:39,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-20 17:46:39,093 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:46:39,093 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1] [2022-03-20 17:46:39,094 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 17:46:39,094 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:46:39,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:46:39,094 INFO L85 PathProgramCache]: Analyzing trace with hash -2112862728, now seen corresponding path program 1 times [2022-03-20 17:46:39,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:46:39,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1228196689] [2022-03-20 17:46:39,095 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:46:39,095 INFO L85 PathProgramCache]: Analyzing trace with hash -2112862728, now seen corresponding path program 2 times [2022-03-20 17:46:39,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:46:39,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231599178] [2022-03-20 17:46:39,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:46:39,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:46:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:46:39,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:46:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:46:39,234 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-20 17:46:39,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:46:39,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231599178] [2022-03-20 17:46:39,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231599178] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:46:39,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:46:39,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:46:39,235 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:46:39,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1228196689] [2022-03-20 17:46:39,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1228196689] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:46:39,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:46:39,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:46:39,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038445900] [2022-03-20 17:46:39,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:46:39,236 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:46:39,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:46:39,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:46:39,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:46:39,237 INFO L87 Difference]: Start difference. First operand 325 states and 476 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-03-20 17:46:41,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:46:41,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:46:41,885 INFO L93 Difference]: Finished difference Result 825 states and 1216 transitions. [2022-03-20 17:46:41,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:46:41,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 63 [2022-03-20 17:46:41,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:46:41,888 INFO L225 Difference]: With dead ends: 825 [2022-03-20 17:46:41,888 INFO L226 Difference]: Without dead ends: 513 [2022-03-20 17:46:41,889 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:46:41,890 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 98 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 17:46:41,890 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 582 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 552 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 17:46:41,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-03-20 17:46:41,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 375. [2022-03-20 17:46:41,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.508108108108108) internal successors, (558), 370 states have internal predecessors, (558), 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) [2022-03-20 17:46:41,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 562 transitions. [2022-03-20 17:46:41,927 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 562 transitions. Word has length 63 [2022-03-20 17:46:41,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:46:41,927 INFO L478 AbstractCegarLoop]: Abstraction has 375 states and 562 transitions. [2022-03-20 17:46:41,927 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-03-20 17:46:41,927 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 562 transitions. [2022-03-20 17:46:41,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-20 17:46:41,929 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:46:41,929 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1] [2022-03-20 17:46:41,929 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 17:46:41,929 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:46:41,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:46:41,930 INFO L85 PathProgramCache]: Analyzing trace with hash 2048091062, now seen corresponding path program 1 times [2022-03-20 17:46:41,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:46:41,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1183806216] [2022-03-20 17:46:41,930 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:46:41,930 INFO L85 PathProgramCache]: Analyzing trace with hash 2048091062, now seen corresponding path program 2 times [2022-03-20 17:46:41,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:46:41,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945770691] [2022-03-20 17:46:41,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:46:41,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:46:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:46:42,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:46:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:46:42,055 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-20 17:46:42,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:46:42,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945770691] [2022-03-20 17:46:42,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945770691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:46:42,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:46:42,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:46:42,056 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:46:42,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1183806216] [2022-03-20 17:46:42,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1183806216] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:46:42,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:46:42,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:46:42,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950416921] [2022-03-20 17:46:42,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:46:42,057 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:46:42,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:46:42,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:46:42,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:46:42,058 INFO L87 Difference]: Start difference. First operand 375 states and 562 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-03-20 17:46:44,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:46:44,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:46:44,511 INFO L93 Difference]: Finished difference Result 821 states and 1232 transitions. [2022-03-20 17:46:44,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:46:44,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 63 [2022-03-20 17:46:44,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:46:44,517 INFO L225 Difference]: With dead ends: 821 [2022-03-20 17:46:44,518 INFO L226 Difference]: Without dead ends: 459 [2022-03-20 17:46:44,518 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:46:44,521 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 38 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:46:44,521 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 510 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:46:44,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-03-20 17:46:44,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 415. [2022-03-20 17:46:44,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 410 states have (on average 1.526829268292683) internal successors, (626), 410 states have internal predecessors, (626), 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) [2022-03-20 17:46:44,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 630 transitions. [2022-03-20 17:46:44,536 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 630 transitions. Word has length 63 [2022-03-20 17:46:44,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:46:44,538 INFO L478 AbstractCegarLoop]: Abstraction has 415 states and 630 transitions. [2022-03-20 17:46:44,538 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-03-20 17:46:44,538 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 630 transitions. [2022-03-20 17:46:44,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 17:46:44,545 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:46:44,545 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2022-03-20 17:46:44,546 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 17:46:44,546 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:46:44,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:46:44,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1078652993, now seen corresponding path program 1 times [2022-03-20 17:46:44,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:46:44,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [425647284] [2022-03-20 17:46:44,547 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:46:44,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1078652993, now seen corresponding path program 2 times [2022-03-20 17:46:44,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:46:44,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655425655] [2022-03-20 17:46:44,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:46:44,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:46:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:46:44,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:46:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:46:44,718 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-20 17:46:44,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:46:44,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655425655] [2022-03-20 17:46:44,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655425655] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:46:44,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:46:44,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:46:44,719 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:46:44,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [425647284] [2022-03-20 17:46:44,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [425647284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:46:44,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:46:44,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:46:44,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973397749] [2022-03-20 17:46:44,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:46:44,724 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:46:44,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:46:44,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:46:44,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:46:44,725 INFO L87 Difference]: Start difference. First operand 415 states and 630 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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) [2022-03-20 17:46:46,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:46:47,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:46:47,215 INFO L93 Difference]: Finished difference Result 1092 states and 1654 transitions. [2022-03-20 17:46:47,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:46:47,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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 64 [2022-03-20 17:46:47,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:46:47,218 INFO L225 Difference]: With dead ends: 1092 [2022-03-20 17:46:47,218 INFO L226 Difference]: Without dead ends: 690 [2022-03-20 17:46:47,219 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:46:47,219 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 108 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:46:47,219 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:46:47,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2022-03-20 17:46:47,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 490. [2022-03-20 17:46:47,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.5628865979381443) internal successors, (758), 485 states have internal predecessors, (758), 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) [2022-03-20 17:46:47,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 762 transitions. [2022-03-20 17:46:47,245 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 762 transitions. Word has length 64 [2022-03-20 17:46:47,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:46:47,245 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 762 transitions. [2022-03-20 17:46:47,245 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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) [2022-03-20 17:46:47,245 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 762 transitions. [2022-03-20 17:46:47,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 17:46:47,246 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:46:47,246 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2022-03-20 17:46:47,247 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 17:46:47,247 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:46:47,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:46:47,247 INFO L85 PathProgramCache]: Analyzing trace with hash 917238579, now seen corresponding path program 1 times [2022-03-20 17:46:47,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:46:47,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [162388172] [2022-03-20 17:46:47,248 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:46:47,248 INFO L85 PathProgramCache]: Analyzing trace with hash 917238579, now seen corresponding path program 2 times [2022-03-20 17:46:47,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:46:47,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484360398] [2022-03-20 17:46:47,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:46:47,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:46:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:46:47,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:46:47,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:46:47,376 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-20 17:46:47,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:46:47,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484360398] [2022-03-20 17:46:47,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484360398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:46:47,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:46:47,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:46:47,377 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:46:47,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [162388172] [2022-03-20 17:46:47,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [162388172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:46:47,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:46:47,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:46:47,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586758785] [2022-03-20 17:46:47,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:46:47,378 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:46:47,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:46:47,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:46:47,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:46:47,378 INFO L87 Difference]: Start difference. First operand 490 states and 762 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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) [2022-03-20 17:46:49,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:46:49,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:46:49,964 INFO L93 Difference]: Finished difference Result 1099 states and 1691 transitions. [2022-03-20 17:46:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:46:49,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-20 17:46:49,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:46:49,967 INFO L225 Difference]: With dead ends: 1099 [2022-03-20 17:46:49,967 INFO L226 Difference]: Without dead ends: 622 [2022-03-20 17:46:49,968 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:46:49,968 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 91 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 17:46:49,969 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 570 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 542 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 17:46:49,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-03-20 17:46:49,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 494. [2022-03-20 17:46:49,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 489 states have (on average 1.5582822085889572) internal successors, (762), 489 states have internal predecessors, (762), 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) [2022-03-20 17:46:49,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 766 transitions. [2022-03-20 17:46:49,985 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 766 transitions. Word has length 65 [2022-03-20 17:46:49,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:46:49,985 INFO L478 AbstractCegarLoop]: Abstraction has 494 states and 766 transitions. [2022-03-20 17:46:49,985 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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) [2022-03-20 17:46:49,986 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 766 transitions. [2022-03-20 17:46:49,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 17:46:49,986 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:46:49,987 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2022-03-20 17:46:49,987 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 17:46:49,987 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:46:49,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:46:49,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1634852198, now seen corresponding path program 1 times [2022-03-20 17:46:49,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:46:49,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [715570957] [2022-03-20 17:46:49,988 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:46:49,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1634852198, now seen corresponding path program 2 times [2022-03-20 17:46:49,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:46:49,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494860262] [2022-03-20 17:46:49,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:46:49,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:46:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:46:50,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:46:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:46:50,146 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-20 17:46:50,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:46:50,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494860262] [2022-03-20 17:46:50,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494860262] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:46:50,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:46:50,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:46:50,149 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:46:50,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [715570957] [2022-03-20 17:46:50,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [715570957] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:46:50,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:46:50,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:46:50,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633155755] [2022-03-20 17:46:50,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:46:50,150 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:46:50,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:46:50,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:46:50,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:46:50,152 INFO L87 Difference]: Start difference. First operand 494 states and 766 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-03-20 17:46:52,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:46:52,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:46:52,631 INFO L93 Difference]: Finished difference Result 1175 states and 1791 transitions. [2022-03-20 17:46:52,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:46:52,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-20 17:46:52,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:46:52,634 INFO L225 Difference]: With dead ends: 1175 [2022-03-20 17:46:52,635 INFO L226 Difference]: Without dead ends: 694 [2022-03-20 17:46:52,636 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:46:52,636 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 105 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:46:52,637 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:46:52,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2022-03-20 17:46:52,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 500. [2022-03-20 17:46:52,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 495 states have (on average 1.5575757575757576) internal successors, (771), 495 states have internal predecessors, (771), 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) [2022-03-20 17:46:52,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 775 transitions. [2022-03-20 17:46:52,654 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 775 transitions. Word has length 66 [2022-03-20 17:46:52,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:46:52,655 INFO L478 AbstractCegarLoop]: Abstraction has 500 states and 775 transitions. [2022-03-20 17:46:52,655 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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) [2022-03-20 17:46:52,655 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 775 transitions. [2022-03-20 17:46:52,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-20 17:46:52,656 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:46:52,656 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 17:46:52,656 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 17:46:52,656 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:46:52,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:46:52,657 INFO L85 PathProgramCache]: Analyzing trace with hash 391550933, now seen corresponding path program 1 times [2022-03-20 17:46:52,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:46:52,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1394068355] [2022-03-20 17:46:52,657 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:46:52,657 INFO L85 PathProgramCache]: Analyzing trace with hash 391550933, now seen corresponding path program 2 times [2022-03-20 17:46:52,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:46:52,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559331221] [2022-03-20 17:46:52,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:46:52,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:46:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:46:52,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:46:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:46:52,774 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-20 17:46:52,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:46:52,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559331221] [2022-03-20 17:46:52,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559331221] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:46:52,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:46:52,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:46:52,775 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:46:52,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1394068355] [2022-03-20 17:46:52,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1394068355] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:46:52,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:46:52,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:46:52,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554933862] [2022-03-20 17:46:52,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:46:52,776 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:46:52,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:46:52,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:46:52,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:46:52,777 INFO L87 Difference]: Start difference. First operand 500 states and 775 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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) [2022-03-20 17:46:54,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:46:55,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:46:55,297 INFO L93 Difference]: Finished difference Result 1197 states and 1828 transitions. [2022-03-20 17:46:55,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:46:55,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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 78 [2022-03-20 17:46:55,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:46:55,300 INFO L225 Difference]: With dead ends: 1197 [2022-03-20 17:46:55,301 INFO L226 Difference]: Without dead ends: 710 [2022-03-20 17:46:55,302 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:46:55,302 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 112 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 17:46:55,302 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 513 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 17:46:55,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-03-20 17:46:55,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 503. [2022-03-20 17:46:55,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 498 states have (on average 1.5421686746987953) internal successors, (768), 498 states have internal predecessors, (768), 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) [2022-03-20 17:46:55,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 772 transitions. [2022-03-20 17:46:55,322 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 772 transitions. Word has length 78 [2022-03-20 17:46:55,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:46:55,322 INFO L478 AbstractCegarLoop]: Abstraction has 503 states and 772 transitions. [2022-03-20 17:46:55,322 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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) [2022-03-20 17:46:55,323 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 772 transitions. [2022-03-20 17:46:55,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-20 17:46:55,324 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:46:55,324 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-03-20 17:46:55,324 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 17:46:55,324 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:46:55,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:46:55,324 INFO L85 PathProgramCache]: Analyzing trace with hash -332605162, now seen corresponding path program 1 times [2022-03-20 17:46:55,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:46:55,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [586038584] [2022-03-20 17:46:57,388 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:46:57,389 INFO L85 PathProgramCache]: Analyzing trace with hash -332605162, now seen corresponding path program 2 times [2022-03-20 17:46:57,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:46:57,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068569973] [2022-03-20 17:46:57,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:46:57,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:46:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:46:57,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:46:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:46:57,504 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-20 17:46:57,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:46:57,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068569973] [2022-03-20 17:46:57,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068569973] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:46:57,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:46:57,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:46:57,505 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:46:57,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [586038584] [2022-03-20 17:46:57,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [586038584] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:46:57,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:46:57,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:46:57,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855929684] [2022-03-20 17:46:57,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:46:57,505 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:46:57,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:46:57,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:46:57,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:46:57,506 INFO L87 Difference]: Start difference. First operand 503 states and 772 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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) [2022-03-20 17:46:59,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:46:59,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:46:59,996 INFO L93 Difference]: Finished difference Result 1088 states and 1652 transitions. [2022-03-20 17:46:59,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:46:59,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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 78 [2022-03-20 17:46:59,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:46:59,999 INFO L225 Difference]: With dead ends: 1088 [2022-03-20 17:46:59,999 INFO L226 Difference]: Without dead ends: 776 [2022-03-20 17:47:00,000 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:47:00,002 INFO L913 BasicCegarLoop]: 115 mSDtfsCounter, 115 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:47:00,002 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 316 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 401 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:47:00,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2022-03-20 17:47:00,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 551. [2022-03-20 17:47:00,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.5366300366300367) internal successors, (839), 546 states have internal predecessors, (839), 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) [2022-03-20 17:47:00,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 843 transitions. [2022-03-20 17:47:00,027 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 843 transitions. Word has length 78 [2022-03-20 17:47:00,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:47:00,027 INFO L478 AbstractCegarLoop]: Abstraction has 551 states and 843 transitions. [2022-03-20 17:47:00,027 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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) [2022-03-20 17:47:00,028 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 843 transitions. [2022-03-20 17:47:00,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-03-20 17:47:00,029 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:47:00,029 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 17:47:00,029 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 17:47:00,029 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:47:00,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:47:00,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1110908818, now seen corresponding path program 1 times [2022-03-20 17:47:00,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:00,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [946479948] [2022-03-20 17:47:00,030 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:47:00,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1110908818, now seen corresponding path program 2 times [2022-03-20 17:47:00,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:47:00,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157011450] [2022-03-20 17:47:00,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:47:00,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:47:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:00,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:47:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:00,157 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-20 17:47:00,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:47:00,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157011450] [2022-03-20 17:47:00,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157011450] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:00,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:00,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:47:00,158 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:47:00,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [946479948] [2022-03-20 17:47:00,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [946479948] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:00,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:00,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:47:00,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971220431] [2022-03-20 17:47:00,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:47:00,158 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:47:00,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:00,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:47:00,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:47:00,159 INFO L87 Difference]: Start difference. First operand 551 states and 843 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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) [2022-03-20 17:47:02,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:47:02,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:47:02,707 INFO L93 Difference]: Finished difference Result 1202 states and 1827 transitions. [2022-03-20 17:47:02,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:47:02,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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 79 [2022-03-20 17:47:02,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:47:02,710 INFO L225 Difference]: With dead ends: 1202 [2022-03-20 17:47:02,710 INFO L226 Difference]: Without dead ends: 667 [2022-03-20 17:47:02,711 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:47:02,711 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 96 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 17:47:02,712 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 558 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 521 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 17:47:02,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2022-03-20 17:47:02,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 551. [2022-03-20 17:47:02,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.532967032967033) internal successors, (837), 546 states have internal predecessors, (837), 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) [2022-03-20 17:47:02,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 841 transitions. [2022-03-20 17:47:02,736 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 841 transitions. Word has length 79 [2022-03-20 17:47:02,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:47:02,736 INFO L478 AbstractCegarLoop]: Abstraction has 551 states and 841 transitions. [2022-03-20 17:47:02,736 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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) [2022-03-20 17:47:02,736 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 841 transitions. [2022-03-20 17:47:02,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-03-20 17:47:02,737 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:47:02,737 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 17:47:02,737 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 17:47:02,737 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:47:02,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:47:02,738 INFO L85 PathProgramCache]: Analyzing trace with hash -734458348, now seen corresponding path program 1 times [2022-03-20 17:47:02,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:02,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1035320362] [2022-03-20 17:47:02,738 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:47:02,738 INFO L85 PathProgramCache]: Analyzing trace with hash -734458348, now seen corresponding path program 2 times [2022-03-20 17:47:02,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:47:02,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120218214] [2022-03-20 17:47:02,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:47:02,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:47:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:02,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:47:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:02,845 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-20 17:47:02,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:47:02,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120218214] [2022-03-20 17:47:02,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120218214] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:02,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:02,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:47:02,845 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:47:02,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1035320362] [2022-03-20 17:47:02,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1035320362] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:02,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:02,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:47:02,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579385596] [2022-03-20 17:47:02,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:47:02,846 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:47:02,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:02,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:47:02,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:47:02,847 INFO L87 Difference]: Start difference. First operand 551 states and 841 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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) [2022-03-20 17:47:04,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:47:05,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:47:05,340 INFO L93 Difference]: Finished difference Result 1278 states and 1923 transitions. [2022-03-20 17:47:05,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:47:05,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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 79 [2022-03-20 17:47:05,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:47:05,343 INFO L225 Difference]: With dead ends: 1278 [2022-03-20 17:47:05,344 INFO L226 Difference]: Without dead ends: 743 [2022-03-20 17:47:05,345 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:47:05,345 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 119 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:47:05,345 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:47:05,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2022-03-20 17:47:05,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 551. [2022-03-20 17:47:05,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.5183150183150182) internal successors, (829), 546 states have internal predecessors, (829), 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) [2022-03-20 17:47:05,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 833 transitions. [2022-03-20 17:47:05,405 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 833 transitions. Word has length 79 [2022-03-20 17:47:05,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:47:05,405 INFO L478 AbstractCegarLoop]: Abstraction has 551 states and 833 transitions. [2022-03-20 17:47:05,406 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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) [2022-03-20 17:47:05,406 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 833 transitions. [2022-03-20 17:47:05,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-03-20 17:47:05,408 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:47:05,408 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 17:47:05,408 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 17:47:05,408 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:47:05,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:47:05,409 INFO L85 PathProgramCache]: Analyzing trace with hash -2089376307, now seen corresponding path program 1 times [2022-03-20 17:47:05,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:05,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1709101640] [2022-03-20 17:47:05,409 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:47:05,409 INFO L85 PathProgramCache]: Analyzing trace with hash -2089376307, now seen corresponding path program 2 times [2022-03-20 17:47:05,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:47:05,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850913682] [2022-03-20 17:47:05,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:47:05,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:47:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:05,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:47:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:05,515 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-20 17:47:05,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:47:05,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850913682] [2022-03-20 17:47:05,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850913682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:05,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:05,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:47:05,516 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:47:05,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1709101640] [2022-03-20 17:47:05,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1709101640] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:05,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:05,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:47:05,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013602578] [2022-03-20 17:47:05,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:47:05,517 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:47:05,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:05,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:47:05,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:47:05,517 INFO L87 Difference]: Start difference. First operand 551 states and 833 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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) [2022-03-20 17:47:07,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:47:08,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:47:08,088 INFO L93 Difference]: Finished difference Result 1202 states and 1807 transitions. [2022-03-20 17:47:08,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:47:08,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 80 [2022-03-20 17:47:08,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:47:08,090 INFO L225 Difference]: With dead ends: 1202 [2022-03-20 17:47:08,091 INFO L226 Difference]: Without dead ends: 667 [2022-03-20 17:47:08,092 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:47:08,092 INFO L913 BasicCegarLoop]: 232 mSDtfsCounter, 94 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 17:47:08,095 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 556 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 520 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 17:47:08,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2022-03-20 17:47:08,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 551. [2022-03-20 17:47:08,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.5146520146520146) internal successors, (827), 546 states have internal predecessors, (827), 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) [2022-03-20 17:47:08,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 831 transitions. [2022-03-20 17:47:08,127 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 831 transitions. Word has length 80 [2022-03-20 17:47:08,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:47:08,127 INFO L478 AbstractCegarLoop]: Abstraction has 551 states and 831 transitions. [2022-03-20 17:47:08,127 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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) [2022-03-20 17:47:08,127 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 831 transitions. [2022-03-20 17:47:08,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-03-20 17:47:08,129 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:47:08,129 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 17:47:08,129 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 17:47:08,129 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:47:08,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:47:08,131 INFO L85 PathProgramCache]: Analyzing trace with hash -33367760, now seen corresponding path program 1 times [2022-03-20 17:47:08,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:08,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2105855495] [2022-03-20 17:47:10,218 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:47:10,218 INFO L85 PathProgramCache]: Analyzing trace with hash -33367760, now seen corresponding path program 2 times [2022-03-20 17:47:10,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:47:10,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814708503] [2022-03-20 17:47:10,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:47:10,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:47:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:10,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:47:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:10,315 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-20 17:47:10,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:47:10,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814708503] [2022-03-20 17:47:10,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814708503] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:10,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:10,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:47:10,315 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:47:10,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2105855495] [2022-03-20 17:47:10,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2105855495] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:10,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:10,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:47:10,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96428156] [2022-03-20 17:47:10,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:47:10,316 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:47:10,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:10,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:47:10,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:47:10,316 INFO L87 Difference]: Start difference. First operand 551 states and 831 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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) [2022-03-20 17:47:12,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:47:12,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:47:12,869 INFO L93 Difference]: Finished difference Result 1005 states and 1507 transitions. [2022-03-20 17:47:12,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:47:12,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 80 [2022-03-20 17:47:12,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:47:12,872 INFO L225 Difference]: With dead ends: 1005 [2022-03-20 17:47:12,872 INFO L226 Difference]: Without dead ends: 661 [2022-03-20 17:47:12,873 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:47:12,873 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 87 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 17:47:12,873 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 550 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 510 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 17:47:12,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-03-20 17:47:12,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 551. [2022-03-20 17:47:12,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.510989010989011) internal successors, (825), 546 states have internal predecessors, (825), 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) [2022-03-20 17:47:12,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 829 transitions. [2022-03-20 17:47:12,900 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 829 transitions. Word has length 80 [2022-03-20 17:47:12,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:47:12,901 INFO L478 AbstractCegarLoop]: Abstraction has 551 states and 829 transitions. [2022-03-20 17:47:12,901 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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) [2022-03-20 17:47:12,901 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 829 transitions. [2022-03-20 17:47:12,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-03-20 17:47:12,902 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:47:12,902 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 17:47:12,902 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 17:47:12,902 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:47:12,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:47:12,903 INFO L85 PathProgramCache]: Analyzing trace with hash 833783691, now seen corresponding path program 1 times [2022-03-20 17:47:12,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:12,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [175047560] [2022-03-20 17:47:12,903 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:47:12,903 INFO L85 PathProgramCache]: Analyzing trace with hash 833783691, now seen corresponding path program 2 times [2022-03-20 17:47:12,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:47:12,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427080510] [2022-03-20 17:47:12,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:47:12,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:47:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:12,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:47:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:12,997 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-20 17:47:12,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:47:12,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427080510] [2022-03-20 17:47:12,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427080510] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:12,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:12,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:47:12,997 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:47:12,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [175047560] [2022-03-20 17:47:12,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [175047560] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:12,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:12,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:47:12,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908652493] [2022-03-20 17:47:12,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:47:12,998 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:47:12,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:12,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:47:12,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:47:12,998 INFO L87 Difference]: Start difference. First operand 551 states and 829 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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) [2022-03-20 17:47:15,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:47:15,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:47:15,450 INFO L93 Difference]: Finished difference Result 1278 states and 1899 transitions. [2022-03-20 17:47:15,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:47:15,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 80 [2022-03-20 17:47:15,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:47:15,453 INFO L225 Difference]: With dead ends: 1278 [2022-03-20 17:47:15,453 INFO L226 Difference]: Without dead ends: 743 [2022-03-20 17:47:15,454 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:47:15,454 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 117 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:47:15,455 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 306 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:47:15,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2022-03-20 17:47:15,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 551. [2022-03-20 17:47:15,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.4963369963369964) internal successors, (817), 546 states have internal predecessors, (817), 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) [2022-03-20 17:47:15,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 821 transitions. [2022-03-20 17:47:15,486 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 821 transitions. Word has length 80 [2022-03-20 17:47:15,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:47:15,486 INFO L478 AbstractCegarLoop]: Abstraction has 551 states and 821 transitions. [2022-03-20 17:47:15,486 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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) [2022-03-20 17:47:15,486 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 821 transitions. [2022-03-20 17:47:15,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-03-20 17:47:15,487 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:47:15,487 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 17:47:15,487 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 17:47:15,487 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:47:15,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:47:15,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1405175058, now seen corresponding path program 1 times [2022-03-20 17:47:15,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:15,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [368943807] [2022-03-20 17:47:17,518 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:47:17,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1405175058, now seen corresponding path program 2 times [2022-03-20 17:47:17,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:47:17,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669915244] [2022-03-20 17:47:17,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:47:17,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:47:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:17,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:47:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:17,625 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-20 17:47:17,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:47:17,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669915244] [2022-03-20 17:47:17,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669915244] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:17,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:17,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:47:17,626 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:47:17,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [368943807] [2022-03-20 17:47:17,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [368943807] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:17,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:17,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:47:17,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401295984] [2022-03-20 17:47:17,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:47:17,626 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:47:17,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:17,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:47:17,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:47:17,627 INFO L87 Difference]: Start difference. First operand 551 states and 821 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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) [2022-03-20 17:47:19,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:47:20,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:47:20,087 INFO L93 Difference]: Finished difference Result 1112 states and 1649 transitions. [2022-03-20 17:47:20,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:47:20,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 80 [2022-03-20 17:47:20,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:47:20,090 INFO L225 Difference]: With dead ends: 1112 [2022-03-20 17:47:20,090 INFO L226 Difference]: Without dead ends: 768 [2022-03-20 17:47:20,091 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:47:20,091 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 109 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:47:20,091 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 320 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 397 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:47:20,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2022-03-20 17:47:20,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 554. [2022-03-20 17:47:20,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4899817850637522) internal successors, (818), 549 states have internal predecessors, (818), 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) [2022-03-20 17:47:20,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 822 transitions. [2022-03-20 17:47:20,125 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 822 transitions. Word has length 80 [2022-03-20 17:47:20,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:47:20,125 INFO L478 AbstractCegarLoop]: Abstraction has 554 states and 822 transitions. [2022-03-20 17:47:20,126 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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) [2022-03-20 17:47:20,126 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 822 transitions. [2022-03-20 17:47:20,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-20 17:47:20,127 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:47:20,127 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 17:47:20,127 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 17:47:20,127 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:47:20,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:47:20,127 INFO L85 PathProgramCache]: Analyzing trace with hash -2074446003, now seen corresponding path program 1 times [2022-03-20 17:47:20,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:20,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1725424364] [2022-03-20 17:47:25,950 WARN L232 SmtUtils]: Spent 5.82s on a formula simplification. DAG size of input: 198 DAG size of output: 190 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:47:37,155 WARN L232 SmtUtils]: Spent 9.84s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:47:45,298 WARN L232 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 17:47:46,524 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:47:46,524 INFO L85 PathProgramCache]: Analyzing trace with hash -2074446003, now seen corresponding path program 2 times [2022-03-20 17:47:46,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:47:46,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084562597] [2022-03-20 17:47:46,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:47:46,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:47:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:46,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:47:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:46,635 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-20 17:47:46,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:47:46,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084562597] [2022-03-20 17:47:46,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084562597] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:46,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:46,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:47:46,635 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:47:46,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1725424364] [2022-03-20 17:47:46,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1725424364] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:46,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:46,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:47:46,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861364916] [2022-03-20 17:47:46,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:47:46,636 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:47:46,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:46,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:47:46,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:47:46,637 INFO L87 Difference]: Start difference. First operand 554 states and 822 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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) [2022-03-20 17:47:48,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:47:49,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:47:49,074 INFO L93 Difference]: Finished difference Result 1093 states and 1631 transitions. [2022-03-20 17:47:49,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:47:49,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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 95 [2022-03-20 17:47:49,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:47:49,077 INFO L225 Difference]: With dead ends: 1093 [2022-03-20 17:47:49,077 INFO L226 Difference]: Without dead ends: 749 [2022-03-20 17:47:49,078 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:47:49,078 INFO L913 BasicCegarLoop]: 319 mSDtfsCounter, 119 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:47:49,079 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 483 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:47:49,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2022-03-20 17:47:49,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 749. [2022-03-20 17:47:49,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 744 states have (on average 1.4879032258064515) internal successors, (1107), 744 states have internal predecessors, (1107), 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) [2022-03-20 17:47:49,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1111 transitions. [2022-03-20 17:47:49,145 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1111 transitions. Word has length 95 [2022-03-20 17:47:49,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:47:49,145 INFO L478 AbstractCegarLoop]: Abstraction has 749 states and 1111 transitions. [2022-03-20 17:47:49,145 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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) [2022-03-20 17:47:49,145 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1111 transitions. [2022-03-20 17:47:49,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-20 17:47:49,146 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:47:49,147 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 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] [2022-03-20 17:47:49,147 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 17:47:49,147 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:47:49,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:47:49,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1609163299, now seen corresponding path program 1 times [2022-03-20 17:47:49,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:49,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [731944831] [2022-03-20 17:47:49,148 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:47:49,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1609163299, now seen corresponding path program 2 times [2022-03-20 17:47:49,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:47:49,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878838958] [2022-03-20 17:47:49,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:47:49,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:47:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:49,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:47:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:49,247 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-20 17:47:49,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:47:49,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878838958] [2022-03-20 17:47:49,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878838958] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:49,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:49,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:47:49,248 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:47:49,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [731944831] [2022-03-20 17:47:49,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [731944831] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:49,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:49,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:47:49,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646650492] [2022-03-20 17:47:49,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:47:49,249 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:47:49,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:49,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:47:49,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:47:49,249 INFO L87 Difference]: Start difference. First operand 749 states and 1111 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 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) [2022-03-20 17:47:51,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:47:51,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:47:51,652 INFO L93 Difference]: Finished difference Result 1482 states and 2208 transitions. [2022-03-20 17:47:51,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:47:51,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 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 98 [2022-03-20 17:47:51,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:47:51,655 INFO L225 Difference]: With dead ends: 1482 [2022-03-20 17:47:51,655 INFO L226 Difference]: Without dead ends: 943 [2022-03-20 17:47:51,656 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:47:51,657 INFO L913 BasicCegarLoop]: 318 mSDtfsCounter, 128 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:47:51,657 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 482 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 17:47:51,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2022-03-20 17:47:51,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 943. [2022-03-20 17:47:51,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 938 states have (on average 1.4872068230277184) internal successors, (1395), 938 states have internal predecessors, (1395), 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) [2022-03-20 17:47:51,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1399 transitions. [2022-03-20 17:47:51,700 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1399 transitions. Word has length 98 [2022-03-20 17:47:51,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:47:51,700 INFO L478 AbstractCegarLoop]: Abstraction has 943 states and 1399 transitions. [2022-03-20 17:47:51,700 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 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) [2022-03-20 17:47:51,700 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1399 transitions. [2022-03-20 17:47:51,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-20 17:47:51,702 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:47:51,702 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 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] [2022-03-20 17:47:51,702 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 17:47:51,702 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:47:51,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:47:51,702 INFO L85 PathProgramCache]: Analyzing trace with hash -816970310, now seen corresponding path program 1 times [2022-03-20 17:47:51,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:51,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1618486359] [2022-03-20 17:47:51,703 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:47:51,703 INFO L85 PathProgramCache]: Analyzing trace with hash -816970310, now seen corresponding path program 2 times [2022-03-20 17:47:51,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:47:51,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331599628] [2022-03-20 17:47:51,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:47:51,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:47:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:51,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:47:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:51,823 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 17:47:51,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:47:51,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331599628] [2022-03-20 17:47:51,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331599628] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:51,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:51,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:47:51,823 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:47:51,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1618486359] [2022-03-20 17:47:51,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1618486359] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:51,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:51,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:47:51,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285249484] [2022-03-20 17:47:51,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:47:51,824 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:47:51,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:51,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:47:51,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:47:51,825 INFO L87 Difference]: Start difference. First operand 943 states and 1399 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 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) [2022-03-20 17:47:53,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:47:54,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:47:54,268 INFO L93 Difference]: Finished difference Result 1673 states and 2486 transitions. [2022-03-20 17:47:54,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:47:54,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 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 119 [2022-03-20 17:47:54,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:47:54,271 INFO L225 Difference]: With dead ends: 1673 [2022-03-20 17:47:54,271 INFO L226 Difference]: Without dead ends: 940 [2022-03-20 17:47:54,272 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:47:54,273 INFO L913 BasicCegarLoop]: 315 mSDtfsCounter, 128 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:47:54,273 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 478 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:47:54,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2022-03-20 17:47:54,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 940. [2022-03-20 17:47:54,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 935 states have (on average 1.481283422459893) internal successors, (1385), 935 states have internal predecessors, (1385), 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) [2022-03-20 17:47:54,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1389 transitions. [2022-03-20 17:47:54,317 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1389 transitions. Word has length 119 [2022-03-20 17:47:54,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:47:54,317 INFO L478 AbstractCegarLoop]: Abstraction has 940 states and 1389 transitions. [2022-03-20 17:47:54,317 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 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) [2022-03-20 17:47:54,318 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1389 transitions. [2022-03-20 17:47:54,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-20 17:47:54,319 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:47:54,319 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 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] [2022-03-20 17:47:54,319 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 17:47:54,319 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:47:54,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:47:54,320 INFO L85 PathProgramCache]: Analyzing trace with hash 729336437, now seen corresponding path program 1 times [2022-03-20 17:47:54,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:54,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1244507143] [2022-03-20 17:47:54,320 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:47:54,320 INFO L85 PathProgramCache]: Analyzing trace with hash 729336437, now seen corresponding path program 2 times [2022-03-20 17:47:54,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:47:54,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493746095] [2022-03-20 17:47:54,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:47:54,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:47:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:54,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:47:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:54,431 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-03-20 17:47:54,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:47:54,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493746095] [2022-03-20 17:47:54,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493746095] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:54,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:54,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:47:54,432 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:47:54,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1244507143] [2022-03-20 17:47:54,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1244507143] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:54,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:54,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:47:54,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273295681] [2022-03-20 17:47:54,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:47:54,432 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:47:54,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:54,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:47:54,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:47:54,433 INFO L87 Difference]: Start difference. First operand 940 states and 1389 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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) [2022-03-20 17:47:56,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:47:56,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:47:56,988 INFO L93 Difference]: Finished difference Result 2082 states and 3059 transitions. [2022-03-20 17:47:56,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:47:56,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 121 [2022-03-20 17:47:56,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:47:56,991 INFO L225 Difference]: With dead ends: 2082 [2022-03-20 17:47:56,992 INFO L226 Difference]: Without dead ends: 1158 [2022-03-20 17:47:56,993 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:47:56,994 INFO L913 BasicCegarLoop]: 228 mSDtfsCounter, 82 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 17:47:56,994 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 547 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 509 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 17:47:56,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-03-20 17:47:57,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 940. [2022-03-20 17:47:57,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 935 states have (on average 1.477005347593583) internal successors, (1381), 935 states have internal predecessors, (1381), 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) [2022-03-20 17:47:57,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1385 transitions. [2022-03-20 17:47:57,041 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1385 transitions. Word has length 121 [2022-03-20 17:47:57,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:47:57,041 INFO L478 AbstractCegarLoop]: Abstraction has 940 states and 1385 transitions. [2022-03-20 17:47:57,041 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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) [2022-03-20 17:47:57,042 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1385 transitions. [2022-03-20 17:47:57,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-20 17:47:57,043 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:47:57,043 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 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] [2022-03-20 17:47:57,043 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 17:47:57,043 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:47:57,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:47:57,044 INFO L85 PathProgramCache]: Analyzing trace with hash -486817289, now seen corresponding path program 1 times [2022-03-20 17:47:57,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:57,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1980766010] [2022-03-20 17:47:57,044 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:47:57,044 INFO L85 PathProgramCache]: Analyzing trace with hash -486817289, now seen corresponding path program 2 times [2022-03-20 17:47:57,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:47:57,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273934180] [2022-03-20 17:47:57,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:47:57,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:47:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:57,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:47:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:47:57,172 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 17:47:57,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:47:57,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273934180] [2022-03-20 17:47:57,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273934180] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:57,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:57,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:47:57,173 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:47:57,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1980766010] [2022-03-20 17:47:57,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1980766010] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:47:57,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:47:57,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:47:57,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29410630] [2022-03-20 17:47:57,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:47:57,174 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:47:57,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:57,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:47:57,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:47:57,175 INFO L87 Difference]: Start difference. First operand 940 states and 1385 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 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) [2022-03-20 17:47:59,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:47:59,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:47:59,642 INFO L93 Difference]: Finished difference Result 2295 states and 3359 transitions. [2022-03-20 17:47:59,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 17:47:59,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 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 121 [2022-03-20 17:47:59,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:47:59,647 INFO L225 Difference]: With dead ends: 2295 [2022-03-20 17:47:59,647 INFO L226 Difference]: Without dead ends: 1371 [2022-03-20 17:47:59,649 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:47:59,649 INFO L913 BasicCegarLoop]: 101 mSDtfsCounter, 96 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 17:47:59,649 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 287 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 378 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 17:47:59,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2022-03-20 17:47:59,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1062. [2022-03-20 17:47:59,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 1057 states have (on average 1.488174077578051) internal successors, (1573), 1057 states have internal predecessors, (1573), 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) [2022-03-20 17:47:59,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1577 transitions. [2022-03-20 17:47:59,707 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1577 transitions. Word has length 121 [2022-03-20 17:47:59,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:47:59,708 INFO L478 AbstractCegarLoop]: Abstraction has 1062 states and 1577 transitions. [2022-03-20 17:47:59,708 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 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) [2022-03-20 17:47:59,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1577 transitions. [2022-03-20 17:47:59,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-20 17:47:59,710 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:47:59,710 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-03-20 17:47:59,710 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 17:47:59,710 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:47:59,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:47:59,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1878601165, now seen corresponding path program 1 times [2022-03-20 17:47:59,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:47:59,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [663733229] [2022-03-20 17:47:59,711 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:47:59,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1878601165, now seen corresponding path program 2 times [2022-03-20 17:47:59,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:47:59,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665084200] [2022-03-20 17:47:59,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:47:59,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:48:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-20 17:48:00,769 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-20 17:48:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-20 17:48:01,199 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-20 17:48:01,199 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-03-20 17:48:01,199 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-03-20 17:48:01,204 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-20 17:48:01,205 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 17:48:01,207 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] [2022-03-20 17:48:01,210 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 17:48:01,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 05:48:01 BoogieIcfgContainer [2022-03-20 17:48:01,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 17:48:01,244 INFO L158 Benchmark]: Toolchain (without parser) took 91599.00ms. Allocated memory was 212.9MB in the beginning and 348.1MB in the end (delta: 135.3MB). Free memory was 159.4MB in the beginning and 289.5MB in the end (delta: -130.1MB). Peak memory consumption was 186.3MB. Max. memory is 8.0GB. [2022-03-20 17:48:01,244 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 212.9MB. Free memory is still 177.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 17:48:01,244 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.61ms. Allocated memory was 212.9MB in the beginning and 289.4MB in the end (delta: 76.5MB). Free memory was 159.2MB in the beginning and 246.3MB in the end (delta: -87.0MB). Peak memory consumption was 13.0MB. Max. memory is 8.0GB. [2022-03-20 17:48:01,244 INFO L158 Benchmark]: Boogie Preprocessor took 122.98ms. Allocated memory is still 289.4MB. Free memory was 246.3MB in the beginning and 239.4MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-03-20 17:48:01,244 INFO L158 Benchmark]: RCFGBuilder took 2957.64ms. Allocated memory is still 289.4MB. Free memory was 238.9MB in the beginning and 157.1MB in the end (delta: 81.8MB). Peak memory consumption was 81.8MB. Max. memory is 8.0GB. [2022-03-20 17:48:01,245 INFO L158 Benchmark]: TraceAbstraction took 88064.02ms. Allocated memory was 289.4MB in the beginning and 348.1MB in the end (delta: 58.7MB). Free memory was 156.6MB in the beginning and 289.5MB in the end (delta: -132.9MB). Peak memory consumption was 106.7MB. Max. memory is 8.0GB. [2022-03-20 17:48:01,245 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 212.9MB. Free memory is still 177.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 450.61ms. Allocated memory was 212.9MB in the beginning and 289.4MB in the end (delta: 76.5MB). Free memory was 159.2MB in the beginning and 246.3MB in the end (delta: -87.0MB). Peak memory consumption was 13.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 122.98ms. Allocated memory is still 289.4MB. Free memory was 246.3MB in the beginning and 239.4MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 2957.64ms. Allocated memory is still 289.4MB. Free memory was 238.9MB in the beginning and 157.1MB in the end (delta: 81.8MB). Peak memory consumption was 81.8MB. Max. memory is 8.0GB. * TraceAbstraction took 88064.02ms. Allocated memory was 289.4MB in the beginning and 348.1MB in the end (delta: 58.7MB). Free memory was 156.6MB in the beginning and 289.5MB in the end (delta: -132.9MB). Peak memory consumption was 106.7MB. 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 - UnprovableResult [Line: 1658]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 1343. Possible FailurePath: [L1042] static int init = 1; [L1043] static SSL_METHOD SSLv3_client_data ; [L1065] SSL *s ; [L1069] s = malloc (sizeof (SSL)) [L1070] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1071] EXPR s->s3 [L1071] s->s3->flags = __VERIFIER_nondet_long() [L1072] EXPR s->s3 [L1072] (s->s3)->tmp.cert_req = __VERIFIER_nondet_int() [L1073] EXPR s->s3 [L1073] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1074] EXPR s->s3 [L1074] EXPR (s->s3)->tmp.new_cipher [L1074] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1075] EXPR s->s3 [L1075] s->s3->tmp.next_state = __VERIFIER_nondet_int() [L1076] s->bbio = (BIO *) __VERIFIER_nondet_ulong() [L1077] s->wbio = (BIO *) __VERIFIER_nondet_ulong() [L1078] s->ctx = malloc(sizeof(SSL_CTX)) [L1079] EXPR s->ctx [L1079] (s->ctx)->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1080] s->state = 12292 [L1081] s->version = __VERIFIER_nondet_int() [L1082] s->init_buf = (BUF_MEM *)__VERIFIER_nondet_ulong() [L1083] s->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1084] CALL ssl3_connect(s) [L1090] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1091] unsigned long tmp ; [L1092] unsigned long l ; [L1093] long num1 ; [L1094] void (*cb)() ; [L1095] int ret ; [L1096] int new_state ; [L1097] int state ; [L1098] int skip ; [L1099] int *tmp___0 ; [L1100] int tmp___1 = __VERIFIER_nondet_int(); [L1101] int tmp___2 = __VERIFIER_nondet_int(); [L1102] int tmp___3 ; [L1103] int tmp___4 ; [L1104] int tmp___5 ; [L1105] int tmp___6 ; [L1106] int tmp___7 ; [L1107] int tmp___8 ; [L1108] long tmp___9 ; [L1110] int blastFlag ; [L1113] blastFlag = 0 [L1114] s->state = 12292 [L1115] s->hit = __VERIFIER_nondet_int() [L1117] tmp = __VERIFIER_nondet_int() [L1118] cb = (void (*)())((void *)0) [L1119] ret = -1 [L1120] skip = 0 [L1121] tmp___0 = (int*)malloc(sizeof(int)) [L1122] *tmp___0 = 0 [L1123] EXPR s->info_callback [L1123] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1124] EXPR s->info_callback [L1124] cb = s->info_callback [L1132] EXPR s->in_handshake [L1132] s->in_handshake += 1 [L1133] COND FALSE !(tmp___1 & 12288) [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND TRUE s->state == 12292 [L1249] s->new_session = 1 [L1250] s->state = 4096 [L1251] EXPR s->ctx [L1251] EXPR (s->ctx)->stats.sess_connect_renegotiate [L1251] (s->ctx)->stats.sess_connect_renegotiate += 1 [L1256] s->server = 0 [L1257] COND TRUE (unsigned long )cb != (unsigned long )((void *)0) [L1262] EXPR s->version [L1262] COND FALSE !((s->version & 65280) != 768) [L1268] s->type = 4096 [L1269] EXPR s->init_buf [L1269] COND FALSE !((unsigned long )s->init_buf == (unsigned long )((void *)0)) [L1281] tmp___4 = __VERIFIER_nondet_int() [L1282] COND FALSE !(! tmp___4) [L1288] tmp___5 = __VERIFIER_nondet_int() [L1289] COND FALSE !(! tmp___5) [L1295] s->state = 4368 [L1296] EXPR s->ctx [L1296] EXPR (s->ctx)->stats.sess_connect [L1296] (s->ctx)->stats.sess_connect += 1 [L1297] s->init_num = 0 [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state [L1161] COND TRUE s->state == 4368 [L1301] s->shutdown = 0 [L1302] ret = __VERIFIER_nondet_int() [L1303] COND TRUE blastFlag == 0 [L1304] blastFlag = 1 [L1308] COND FALSE !(ret <= 0) [L1313] s->state = 4384 [L1314] s->init_num = 0 [L1315] EXPR s->bbio [L1315] EXPR s->wbio [L1315] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state [L1167] COND TRUE s->state == 4384 [L1323] ret = __VERIFIER_nondet_int() [L1324] COND TRUE blastFlag == 1 [L1325] blastFlag = 2 [L1329] COND FALSE !(ret <= 0) [L1334] s->hit [L1334] COND FALSE !(s->hit) [L1337] s->state = 4400 [L1339] s->init_num = 0 [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state [L1167] COND FALSE !(s->state == 4384) [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 4385) [L1173] EXPR s->state [L1173] COND TRUE s->state == 4400 [L1343] EXPR s->s3 [L1343] EXPR (s->s3)->tmp.new_cipher [L1343] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1343] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1346] ret = __VERIFIER_nondet_int() [L1347] COND TRUE blastFlag == 2 [L1348] blastFlag = 3 [L1352] COND FALSE !(ret <= 0) [L1358] s->state = 4416 [L1359] s->init_num = 0 [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state [L1167] COND FALSE !(s->state == 4384) [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 4385) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 4400) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 4401) [L1179] EXPR s->state [L1179] COND TRUE s->state == 4416 [L1363] ret = __VERIFIER_nondet_int() [L1364] COND TRUE blastFlag == 3 [L1365] blastFlag = 4 [L1369] COND FALSE !(ret <= 0) [L1374] s->state = 4432 [L1375] s->init_num = 0 [L1376] tmp___6 = __VERIFIER_nondet_int() [L1377] COND FALSE !(! tmp___6) [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state [L1167] COND FALSE !(s->state == 4384) [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 4385) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 4400) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 4401) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 4416) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 4417) [L1185] EXPR s->state [L1185] COND TRUE s->state == 4432 [L1386] ret = __VERIFIER_nondet_int() [L1387] COND FALSE !(blastFlag == 5) [L1392] COND FALSE !(ret <= 0) [L1397] s->state = 4448 [L1398] s->init_num = 0 [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state [L1167] COND FALSE !(s->state == 4384) [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 4385) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 4400) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 4401) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 4416) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 4417) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 4432) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 4433) [L1191] EXPR s->state [L1191] COND TRUE s->state == 4448 [L1402] ret = __VERIFIER_nondet_int() [L1403] COND TRUE blastFlag == 4 [L1658] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 171 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 88.0s, OverallIterations: 21, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 50.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 20 mSolverCounterUnknown, 2147 SdHoareTripleChecker+Valid, 48.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2147 mSDsluCounter, 8805 SdHoareTripleChecker+Invalid, 47.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4759 mSDsCounter, 433 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8350 IncrementalHoareTripleChecker+Invalid, 8803 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 433 mSolverCounterUnsat, 4046 mSDtfsCounter, 8350 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1062occurred in iteration=20, InterpolantAutomatonStates: 95, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 20 MinimizatonAttempts, 2603 StatesRemovedByMinimization, 15 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 could not prove your program: unable to determine feasibility of some traces [2022-03-20 17:48:01,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...