/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_4.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 00:39:16,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 00:39:16,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 00:39:16,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 00:39:16,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 00:39:16,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 00:39:16,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 00:39:16,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 00:39:16,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 00:39:16,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 00:39:16,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 00:39:16,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 00:39:16,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 00:39:16,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 00:39:16,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 00:39:16,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 00:39:16,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 00:39:16,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 00:39:16,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 00:39:16,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 00:39:16,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 00:39:16,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 00:39:16,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 00:39:16,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 00:39:16,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-15 00:39:16,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 00:39:16,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 00:39:16,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 00:39:16,680 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-15 00:39:16,690 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 00:39:16,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 00:39:16,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 00:39:16,692 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 00:39:16,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 00:39:16,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 00:39:16,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 00:39:16,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 00:39:16,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 00:39:16,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 00:39:16,693 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 00:39:16,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 00:39:16,694 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 00:39:16,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 00:39:16,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 00:39:16,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 00:39:16,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 00:39:16,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 00:39:16,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:39:16,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 00:39:16,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-15 00:39:16,695 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-15 00:39:16,695 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 00:39:16,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 00:39:16,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 00:39:16,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 00:39:16,913 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 00:39:16,914 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 00:39:16,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_4.cil.c [2022-02-15 00:39:16,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8614ceda4/2a51f0b72dae46dca9873cb028ba39f8/FLAGab67199a7 [2022-02-15 00:39:17,353 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 00:39:17,354 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_4.cil.c [2022-02-15 00:39:17,388 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8614ceda4/2a51f0b72dae46dca9873cb028ba39f8/FLAGab67199a7 [2022-02-15 00:39:17,400 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8614ceda4/2a51f0b72dae46dca9873cb028ba39f8 [2022-02-15 00:39:17,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 00:39:17,405 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-15 00:39:17,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 00:39:17,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 00:39:17,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 00:39:17,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:39:17" (1/1) ... [2022-02-15 00:39:17,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69d6d4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:39:17, skipping insertion in model container [2022-02-15 00:39:17,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:39:17" (1/1) ... [2022-02-15 00:39:17,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 00:39:17,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 00:39:17,677 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_4.cil.c[42875,42888] [2022-02-15 00:39:17,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:39:17,696 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 00:39:17,758 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_4.cil.c[42875,42888] [2022-02-15 00:39:17,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:39:17,769 INFO L208 MainTranslator]: Completed translation [2022-02-15 00:39:17,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:39:17 WrapperNode [2022-02-15 00:39:17,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 00:39:17,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 00:39:17,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 00:39:17,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 00:39:17,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:39:17" (1/1) ... [2022-02-15 00:39:17,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:39:17" (1/1) ... [2022-02-15 00:39:17,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:39:17" (1/1) ... [2022-02-15 00:39:17,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:39:17" (1/1) ... [2022-02-15 00:39:17,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:39:17" (1/1) ... [2022-02-15 00:39:17,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:39:17" (1/1) ... [2022-02-15 00:39:17,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:39:17" (1/1) ... [2022-02-15 00:39:17,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 00:39:17,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 00:39:17,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 00:39:17,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 00:39:17,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:39:17" (1/1) ... [2022-02-15 00:39:17,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:39:17,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:39:17,873 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-15 00:39:17,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-15 00:39:17,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 00:39:17,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 00:39:17,899 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 00:39:17,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-15 00:39:17,899 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 00:39:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 00:39:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 00:39:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 00:39:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 00:39:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 00:39:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 00:39:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 00:39:17,900 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-15 00:39:17,900 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 00:39:17,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 00:39:17,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 00:39:17,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 00:39:17,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 00:39:17,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 00:39:17,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 00:39:17,958 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 00:39:17,959 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 00:39:18,030 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 00:39:18,252 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-02-15 00:39:18,252 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-02-15 00:39:18,256 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 00:39:18,262 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 00:39:18,262 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 00:39:18,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:39:18 BoogieIcfgContainer [2022-02-15 00:39:18,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 00:39:18,264 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-15 00:39:18,264 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-15 00:39:18,265 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-15 00:39:18,267 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:39:18" (1/1) ... [2022-02-15 00:39:18,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:39:18 BasicIcfg [2022-02-15 00:39:18,289 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-15 00:39:18,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 00:39:18,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 00:39:18,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 00:39:18,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 12:39:17" (1/4) ... [2022-02-15 00:39:18,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6996d537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:39:18, skipping insertion in model container [2022-02-15 00:39:18,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:39:17" (2/4) ... [2022-02-15 00:39:18,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6996d537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:39:18, skipping insertion in model container [2022-02-15 00:39:18,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:39:18" (3/4) ... [2022-02-15 00:39:18,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6996d537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 12:39:18, skipping insertion in model container [2022-02-15 00:39:18,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:39:18" (4/4) ... [2022-02-15 00:39:18,294 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_4.cil.cJordan [2022-02-15 00:39:18,298 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-15 00:39:18,298 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 00:39:18,325 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 00:39:18,330 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-15 00:39:18,330 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 00:39:18,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 142 states have (on average 1.7112676056338028) internal successors, (243), 143 states have internal predecessors, (243), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 00:39:18,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-15 00:39:18,352 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:18,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:18,352 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:18,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:18,356 INFO L85 PathProgramCache]: Analyzing trace with hash 53779337, now seen corresponding path program 1 times [2022-02-15 00:39:18,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:18,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865373977] [2022-02-15 00:39:18,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:18,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:18,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:18,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:39:18,670 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:18,670 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865373977] [2022-02-15 00:39:18,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865373977] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:39:18,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:39:18,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:39:18,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786373282] [2022-02-15 00:39:18,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:39:18,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:39:18,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:18,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:39:18,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:39:18,702 INFO L87 Difference]: Start difference. First operand has 150 states, 142 states have (on average 1.7112676056338028) internal successors, (243), 143 states have internal predecessors, (243), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:19,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:19,049 INFO L93 Difference]: Finished difference Result 278 states and 461 transitions. [2022-02-15 00:39:19,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:39:19,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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 50 [2022-02-15 00:39:19,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:19,057 INFO L225 Difference]: With dead ends: 278 [2022-02-15 00:39:19,058 INFO L226 Difference]: Without dead ends: 251 [2022-02-15 00:39:19,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:39:19,061 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 634 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:19,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [636 Valid, 249 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 00:39:19,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-02-15 00:39:19,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2022-02-15 00:39:19,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 246 states have (on average 1.524390243902439) internal successors, (375), 246 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:19,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 379 transitions. [2022-02-15 00:39:19,147 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 379 transitions. Word has length 50 [2022-02-15 00:39:19,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:19,148 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 379 transitions. [2022-02-15 00:39:19,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:19,148 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 379 transitions. [2022-02-15 00:39:19,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-15 00:39:19,150 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:19,150 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:19,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 00:39:19,151 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:19,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:19,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1911224471, now seen corresponding path program 1 times [2022-02-15 00:39:19,151 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:19,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389140577] [2022-02-15 00:39:19,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:19,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:19,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:19,250 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:39:19,250 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:19,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389140577] [2022-02-15 00:39:19,251 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389140577] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:39:19,251 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:39:19,251 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:39:19,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326079415] [2022-02-15 00:39:19,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:39:19,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:39:19,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:19,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:39:19,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:39:19,253 INFO L87 Difference]: Start difference. First operand 251 states and 379 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:19,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:19,486 INFO L93 Difference]: Finished difference Result 280 states and 416 transitions. [2022-02-15 00:39:19,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:39:19,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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 [2022-02-15 00:39:19,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:19,489 INFO L225 Difference]: With dead ends: 280 [2022-02-15 00:39:19,489 INFO L226 Difference]: Without dead ends: 280 [2022-02-15 00:39:19,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:39:19,490 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 215 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:19,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 220 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 00:39:19,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-02-15 00:39:19,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 272. [2022-02-15 00:39:19,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 267 states have (on average 1.5018726591760299) internal successors, (401), 267 states have internal predecessors, (401), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:19,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 405 transitions. [2022-02-15 00:39:19,517 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 405 transitions. Word has length 66 [2022-02-15 00:39:19,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:19,517 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 405 transitions. [2022-02-15 00:39:19,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:19,518 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 405 transitions. [2022-02-15 00:39:19,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-15 00:39:19,520 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:19,520 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:19,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 00:39:19,520 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:19,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:19,521 INFO L85 PathProgramCache]: Analyzing trace with hash 667686383, now seen corresponding path program 1 times [2022-02-15 00:39:19,521 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:19,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026561575] [2022-02-15 00:39:19,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:19,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:19,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:19,607 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:39:19,607 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:19,607 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026561575] [2022-02-15 00:39:19,607 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026561575] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:39:19,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:39:19,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:39:19,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917323324] [2022-02-15 00:39:19,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:39:19,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:39:19,608 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:19,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:39:19,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:39:19,609 INFO L87 Difference]: Start difference. First operand 272 states and 405 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:19,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:19,837 INFO L93 Difference]: Finished difference Result 366 states and 511 transitions. [2022-02-15 00:39:19,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:39:19,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 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 87 [2022-02-15 00:39:19,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:19,839 INFO L225 Difference]: With dead ends: 366 [2022-02-15 00:39:19,839 INFO L226 Difference]: Without dead ends: 366 [2022-02-15 00:39:19,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:39:19,840 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 220 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:19,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 221 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 00:39:19,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-02-15 00:39:19,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 356. [2022-02-15 00:39:19,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 351 states have (on average 1.4102564102564104) internal successors, (495), 351 states have internal predecessors, (495), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:19,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 499 transitions. [2022-02-15 00:39:19,849 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 499 transitions. Word has length 87 [2022-02-15 00:39:19,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:19,849 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 499 transitions. [2022-02-15 00:39:19,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:19,850 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 499 transitions. [2022-02-15 00:39:19,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-15 00:39:19,852 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:19,852 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:19,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 00:39:19,852 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:19,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:19,852 INFO L85 PathProgramCache]: Analyzing trace with hash 791759630, now seen corresponding path program 1 times [2022-02-15 00:39:19,853 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:19,853 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2814071] [2022-02-15 00:39:19,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:19,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:19,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:19,894 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:39:19,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:19,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2814071] [2022-02-15 00:39:19,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2814071] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:39:19,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:39:19,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:39:19,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134887464] [2022-02-15 00:39:19,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:39:19,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:39:19,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:19,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:39:19,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:39:19,896 INFO L87 Difference]: Start difference. First operand 356 states and 499 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:20,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:20,061 INFO L93 Difference]: Finished difference Result 410 states and 565 transitions. [2022-02-15 00:39:20,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:39:20,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 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 87 [2022-02-15 00:39:20,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:20,063 INFO L225 Difference]: With dead ends: 410 [2022-02-15 00:39:20,063 INFO L226 Difference]: Without dead ends: 410 [2022-02-15 00:39:20,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:39:20,064 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 214 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:20,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 221 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 00:39:20,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-02-15 00:39:20,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 402. [2022-02-15 00:39:20,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 397 states have (on average 1.3879093198992443) internal successors, (551), 397 states have internal predecessors, (551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:20,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 555 transitions. [2022-02-15 00:39:20,072 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 555 transitions. Word has length 87 [2022-02-15 00:39:20,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:20,072 INFO L470 AbstractCegarLoop]: Abstraction has 402 states and 555 transitions. [2022-02-15 00:39:20,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:20,072 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 555 transitions. [2022-02-15 00:39:20,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-02-15 00:39:20,074 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:20,074 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:20,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 00:39:20,074 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:20,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:20,075 INFO L85 PathProgramCache]: Analyzing trace with hash -445338313, now seen corresponding path program 1 times [2022-02-15 00:39:20,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:20,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160116374] [2022-02-15 00:39:20,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:20,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:20,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:20,128 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-15 00:39:20,128 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:20,128 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160116374] [2022-02-15 00:39:20,129 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160116374] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:39:20,129 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:39:20,129 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:39:20,129 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114783408] [2022-02-15 00:39:20,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:39:20,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:39:20,129 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:20,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:39:20,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:39:20,130 INFO L87 Difference]: Start difference. First operand 402 states and 555 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 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) [2022-02-15 00:39:20,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:20,304 INFO L93 Difference]: Finished difference Result 478 states and 657 transitions. [2022-02-15 00:39:20,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:39:20,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 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 108 [2022-02-15 00:39:20,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:20,306 INFO L225 Difference]: With dead ends: 478 [2022-02-15 00:39:20,306 INFO L226 Difference]: Without dead ends: 478 [2022-02-15 00:39:20,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:39:20,307 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 246 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:20,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 220 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 00:39:20,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-02-15 00:39:20,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 452. [2022-02-15 00:39:20,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 447 states have (on average 1.366890380313199) internal successors, (611), 447 states have internal predecessors, (611), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:20,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 615 transitions. [2022-02-15 00:39:20,313 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 615 transitions. Word has length 108 [2022-02-15 00:39:20,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:20,314 INFO L470 AbstractCegarLoop]: Abstraction has 452 states and 615 transitions. [2022-02-15 00:39:20,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 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) [2022-02-15 00:39:20,314 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 615 transitions. [2022-02-15 00:39:20,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-02-15 00:39:20,315 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:20,315 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:20,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 00:39:20,315 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:20,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:20,316 INFO L85 PathProgramCache]: Analyzing trace with hash 2063574049, now seen corresponding path program 1 times [2022-02-15 00:39:20,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:20,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311079538] [2022-02-15 00:39:20,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:20,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:20,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:20,369 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-15 00:39:20,370 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:20,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311079538] [2022-02-15 00:39:20,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311079538] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:39:20,370 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:39:20,370 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:39:20,370 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481954925] [2022-02-15 00:39:20,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:39:20,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:39:20,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:20,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:39:20,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:39:20,371 INFO L87 Difference]: Start difference. First operand 452 states and 615 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:20,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:20,541 INFO L93 Difference]: Finished difference Result 681 states and 924 transitions. [2022-02-15 00:39:20,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:39:20,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 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 127 [2022-02-15 00:39:20,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:20,544 INFO L225 Difference]: With dead ends: 681 [2022-02-15 00:39:20,544 INFO L226 Difference]: Without dead ends: 681 [2022-02-15 00:39:20,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:39:20,547 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 334 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:20,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 381 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 00:39:20,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2022-02-15 00:39:20,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 681. [2022-02-15 00:39:20,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 676 states have (on average 1.3609467455621302) internal successors, (920), 676 states have internal predecessors, (920), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:20,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 924 transitions. [2022-02-15 00:39:20,561 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 924 transitions. Word has length 127 [2022-02-15 00:39:20,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:20,562 INFO L470 AbstractCegarLoop]: Abstraction has 681 states and 924 transitions. [2022-02-15 00:39:20,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:20,563 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 924 transitions. [2022-02-15 00:39:20,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-02-15 00:39:20,564 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:20,564 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:20,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 00:39:20,564 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:20,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:20,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1353600599, now seen corresponding path program 1 times [2022-02-15 00:39:20,565 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:20,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664207384] [2022-02-15 00:39:20,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:20,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:20,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:20,641 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:39:20,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:20,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664207384] [2022-02-15 00:39:20,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664207384] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:39:20,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:39:20,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:39:20,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876268542] [2022-02-15 00:39:20,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:39:20,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:39:20,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:20,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:39:20,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:39:20,642 INFO L87 Difference]: Start difference. First operand 681 states and 924 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:20,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:20,802 INFO L93 Difference]: Finished difference Result 907 states and 1230 transitions. [2022-02-15 00:39:20,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:39:20,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 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 128 [2022-02-15 00:39:20,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:20,805 INFO L225 Difference]: With dead ends: 907 [2022-02-15 00:39:20,805 INFO L226 Difference]: Without dead ends: 907 [2022-02-15 00:39:20,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:39:20,806 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 330 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:20,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 379 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 00:39:20,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2022-02-15 00:39:20,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 907. [2022-02-15 00:39:20,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 902 states have (on average 1.3592017738359201) internal successors, (1226), 902 states have internal predecessors, (1226), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:20,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1230 transitions. [2022-02-15 00:39:20,817 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1230 transitions. Word has length 128 [2022-02-15 00:39:20,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:20,817 INFO L470 AbstractCegarLoop]: Abstraction has 907 states and 1230 transitions. [2022-02-15 00:39:20,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:20,817 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1230 transitions. [2022-02-15 00:39:20,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-02-15 00:39:20,819 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:20,819 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:20,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 00:39:20,819 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:20,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:20,819 INFO L85 PathProgramCache]: Analyzing trace with hash 144358360, now seen corresponding path program 1 times [2022-02-15 00:39:20,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:20,820 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658072878] [2022-02-15 00:39:20,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:20,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:20,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:20,850 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-02-15 00:39:20,851 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:20,851 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658072878] [2022-02-15 00:39:20,851 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658072878] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:39:20,851 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:39:20,851 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:39:20,851 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997199773] [2022-02-15 00:39:20,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:39:20,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:39:20,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:20,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:39:20,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:39:20,852 INFO L87 Difference]: Start difference. First operand 907 states and 1230 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:21,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:21,026 INFO L93 Difference]: Finished difference Result 931 states and 1259 transitions. [2022-02-15 00:39:21,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:39:21,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 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 128 [2022-02-15 00:39:21,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:21,029 INFO L225 Difference]: With dead ends: 931 [2022-02-15 00:39:21,029 INFO L226 Difference]: Without dead ends: 931 [2022-02-15 00:39:21,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:39:21,030 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 207 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:21,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 235 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 00:39:21,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2022-02-15 00:39:21,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 931. [2022-02-15 00:39:21,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 926 states have (on average 1.355291576673866) internal successors, (1255), 926 states have internal predecessors, (1255), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:21,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1259 transitions. [2022-02-15 00:39:21,041 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1259 transitions. Word has length 128 [2022-02-15 00:39:21,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:21,041 INFO L470 AbstractCegarLoop]: Abstraction has 931 states and 1259 transitions. [2022-02-15 00:39:21,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:21,041 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1259 transitions. [2022-02-15 00:39:21,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-02-15 00:39:21,043 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:21,043 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:21,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 00:39:21,044 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:21,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:21,044 INFO L85 PathProgramCache]: Analyzing trace with hash -2011766683, now seen corresponding path program 1 times [2022-02-15 00:39:21,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:21,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314943575] [2022-02-15 00:39:21,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:21,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:21,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:21,085 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-15 00:39:21,085 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:21,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314943575] [2022-02-15 00:39:21,085 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314943575] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:39:21,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:39:21,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:39:21,086 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424000309] [2022-02-15 00:39:21,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:39:21,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:39:21,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:21,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:39:21,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:39:21,087 INFO L87 Difference]: Start difference. First operand 931 states and 1259 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:21,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:21,286 INFO L93 Difference]: Finished difference Result 1100 states and 1467 transitions. [2022-02-15 00:39:21,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:39:21,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 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 168 [2022-02-15 00:39:21,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:21,289 INFO L225 Difference]: With dead ends: 1100 [2022-02-15 00:39:21,290 INFO L226 Difference]: Without dead ends: 1100 [2022-02-15 00:39:21,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:39:21,290 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 236 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:21,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 218 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 00:39:21,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2022-02-15 00:39:21,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 1054. [2022-02-15 00:39:21,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 1049 states have (on average 1.336510962821735) internal successors, (1402), 1049 states have internal predecessors, (1402), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:21,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1406 transitions. [2022-02-15 00:39:21,302 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1406 transitions. Word has length 168 [2022-02-15 00:39:21,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:21,302 INFO L470 AbstractCegarLoop]: Abstraction has 1054 states and 1406 transitions. [2022-02-15 00:39:21,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:21,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1406 transitions. [2022-02-15 00:39:21,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-15 00:39:21,304 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:21,304 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:21,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 00:39:21,305 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:21,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:21,305 INFO L85 PathProgramCache]: Analyzing trace with hash 831388600, now seen corresponding path program 1 times [2022-02-15 00:39:21,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:21,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335465912] [2022-02-15 00:39:21,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:21,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:21,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:21,344 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-15 00:39:21,344 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:21,344 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335465912] [2022-02-15 00:39:21,344 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335465912] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:39:21,345 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:39:21,345 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:39:21,345 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231189009] [2022-02-15 00:39:21,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:39:21,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:39:21,345 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:21,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:39:21,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:39:21,346 INFO L87 Difference]: Start difference. First operand 1054 states and 1406 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:21,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:21,492 INFO L93 Difference]: Finished difference Result 1280 states and 1767 transitions. [2022-02-15 00:39:21,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:39:21,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 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 181 [2022-02-15 00:39:21,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:21,496 INFO L225 Difference]: With dead ends: 1280 [2022-02-15 00:39:21,496 INFO L226 Difference]: Without dead ends: 1276 [2022-02-15 00:39:21,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:39:21,497 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 332 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:21,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 219 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 00:39:21,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2022-02-15 00:39:21,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1258. [2022-02-15 00:39:21,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1253 states have (on average 1.3894652833200318) internal successors, (1741), 1253 states have internal predecessors, (1741), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:21,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 1745 transitions. [2022-02-15 00:39:21,512 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 1745 transitions. Word has length 181 [2022-02-15 00:39:21,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:21,512 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 1745 transitions. [2022-02-15 00:39:21,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:21,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 1745 transitions. [2022-02-15 00:39:21,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-02-15 00:39:21,514 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:21,515 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-15 00:39:21,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 00:39:21,515 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:21,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:21,516 INFO L85 PathProgramCache]: Analyzing trace with hash -368061555, now seen corresponding path program 1 times [2022-02-15 00:39:21,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:21,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688712082] [2022-02-15 00:39:21,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:21,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:21,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:21,570 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-15 00:39:21,570 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:21,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688712082] [2022-02-15 00:39:21,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688712082] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:39:21,573 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:39:21,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:39:21,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109761222] [2022-02-15 00:39:21,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:39:21,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:39:21,574 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:21,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:39:21,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:39:21,575 INFO L87 Difference]: Start difference. First operand 1258 states and 1745 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:21,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:21,753 INFO L93 Difference]: Finished difference Result 1382 states and 1889 transitions. [2022-02-15 00:39:21,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:39:21,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 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 210 [2022-02-15 00:39:21,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:21,757 INFO L225 Difference]: With dead ends: 1382 [2022-02-15 00:39:21,757 INFO L226 Difference]: Without dead ends: 1382 [2022-02-15 00:39:21,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:39:21,757 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 220 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:21,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 208 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 00:39:21,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2022-02-15 00:39:21,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1382. [2022-02-15 00:39:21,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 1377 states have (on average 1.3689179375453886) internal successors, (1885), 1377 states have internal predecessors, (1885), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:21,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1889 transitions. [2022-02-15 00:39:21,774 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1889 transitions. Word has length 210 [2022-02-15 00:39:21,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:21,774 INFO L470 AbstractCegarLoop]: Abstraction has 1382 states and 1889 transitions. [2022-02-15 00:39:21,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:21,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1889 transitions. [2022-02-15 00:39:21,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-02-15 00:39:21,777 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:21,777 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-15 00:39:21,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 00:39:21,777 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:21,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:21,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1944604409, now seen corresponding path program 1 times [2022-02-15 00:39:21,786 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:21,786 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527423668] [2022-02-15 00:39:21,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:21,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:21,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:21,872 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 343 proven. 26 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-02-15 00:39:21,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:21,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527423668] [2022-02-15 00:39:21,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527423668] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:39:21,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276872664] [2022-02-15 00:39:21,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:21,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:39:21,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:39:21,874 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:39:21,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-15 00:39:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:21,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-15 00:39:21,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:39:22,356 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 343 proven. 26 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-02-15 00:39:22,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:39:22,602 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 343 proven. 26 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-02-15 00:39:22,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276872664] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-15 00:39:22,602 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-15 00:39:22,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-02-15 00:39:22,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138177894] [2022-02-15 00:39:22,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-15 00:39:22,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 00:39:22,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:22,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 00:39:22,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-15 00:39:22,604 INFO L87 Difference]: Start difference. First operand 1382 states and 1889 transitions. Second operand has 7 states, 7 states have (on average 34.42857142857143) internal successors, (241), 6 states have internal predecessors, (241), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:23,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:23,154 INFO L93 Difference]: Finished difference Result 1996 states and 2679 transitions. [2022-02-15 00:39:23,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 00:39:23,155 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.42857142857143) internal successors, (241), 6 states have internal predecessors, (241), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 238 [2022-02-15 00:39:23,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:23,160 INFO L225 Difference]: With dead ends: 1996 [2022-02-15 00:39:23,160 INFO L226 Difference]: Without dead ends: 1952 [2022-02-15 00:39:23,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-02-15 00:39:23,161 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 477 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:23,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [477 Valid, 333 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-15 00:39:23,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1952 states. [2022-02-15 00:39:23,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1952 to 1593. [2022-02-15 00:39:23,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1588 states have (on average 1.3400503778337531) internal successors, (2128), 1588 states have internal predecessors, (2128), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:23,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2132 transitions. [2022-02-15 00:39:23,183 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2132 transitions. Word has length 238 [2022-02-15 00:39:23,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:23,183 INFO L470 AbstractCegarLoop]: Abstraction has 1593 states and 2132 transitions. [2022-02-15 00:39:23,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.42857142857143) internal successors, (241), 6 states have internal predecessors, (241), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:23,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2132 transitions. [2022-02-15 00:39:23,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-02-15 00:39:23,186 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:23,186 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:23,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-15 00:39:23,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-02-15 00:39:23,403 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:23,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:23,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1538435022, now seen corresponding path program 1 times [2022-02-15 00:39:23,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:23,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909865247] [2022-02-15 00:39:23,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:23,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:23,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:23,455 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-02-15 00:39:23,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:23,456 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909865247] [2022-02-15 00:39:23,456 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909865247] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:39:23,456 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124615771] [2022-02-15 00:39:23,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:23,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:39:23,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:39:23,457 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:39:23,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-15 00:39:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:23,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-15 00:39:23,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:39:23,824 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-02-15 00:39:23,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:39:24,083 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-02-15 00:39:24,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124615771] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-15 00:39:24,084 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-15 00:39:24,084 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-02-15 00:39:24,084 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848503356] [2022-02-15 00:39:24,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-15 00:39:24,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 00:39:24,085 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:24,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 00:39:24,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-15 00:39:24,085 INFO L87 Difference]: Start difference. First operand 1593 states and 2132 transitions. Second operand has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 6 states have internal predecessors, (209), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:25,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:25,064 INFO L93 Difference]: Finished difference Result 4989 states and 6539 transitions. [2022-02-15 00:39:25,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 00:39:25,065 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 6 states have internal predecessors, (209), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 259 [2022-02-15 00:39:25,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:25,077 INFO L225 Difference]: With dead ends: 4989 [2022-02-15 00:39:25,077 INFO L226 Difference]: Without dead ends: 4989 [2022-02-15 00:39:25,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 526 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-02-15 00:39:25,078 INFO L933 BasicCegarLoop]: 548 mSDtfsCounter, 715 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 1598 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:25,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [715 Valid, 565 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1598 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 00:39:25,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4989 states. [2022-02-15 00:39:25,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4989 to 4113. [2022-02-15 00:39:25,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4113 states, 4108 states have (on average 1.333495618305745) internal successors, (5478), 4108 states have internal predecessors, (5478), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:25,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4113 states to 4113 states and 5482 transitions. [2022-02-15 00:39:25,139 INFO L78 Accepts]: Start accepts. Automaton has 4113 states and 5482 transitions. Word has length 259 [2022-02-15 00:39:25,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:25,139 INFO L470 AbstractCegarLoop]: Abstraction has 4113 states and 5482 transitions. [2022-02-15 00:39:25,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.857142857142858) internal successors, (209), 6 states have internal predecessors, (209), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:25,139 INFO L276 IsEmpty]: Start isEmpty. Operand 4113 states and 5482 transitions. [2022-02-15 00:39:25,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-02-15 00:39:25,145 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:25,145 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:25,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-15 00:39:25,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-15 00:39:25,361 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:25,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:25,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1682844717, now seen corresponding path program 1 times [2022-02-15 00:39:25,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:25,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451775959] [2022-02-15 00:39:25,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:25,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:25,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:25,399 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-02-15 00:39:25,399 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:25,399 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451775959] [2022-02-15 00:39:25,399 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451775959] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:39:25,399 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:39:25,399 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:39:25,399 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203813261] [2022-02-15 00:39:25,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:39:25,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:39:25,418 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:25,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:39:25,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:39:25,419 INFO L87 Difference]: Start difference. First operand 4113 states and 5482 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:25,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:25,594 INFO L93 Difference]: Finished difference Result 6796 states and 9070 transitions. [2022-02-15 00:39:25,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:39:25,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 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 259 [2022-02-15 00:39:25,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:25,611 INFO L225 Difference]: With dead ends: 6796 [2022-02-15 00:39:25,611 INFO L226 Difference]: Without dead ends: 6796 [2022-02-15 00:39:25,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:39:25,612 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 334 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:25,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 380 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 00:39:25,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6796 states. [2022-02-15 00:39:25,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6796 to 6508. [2022-02-15 00:39:25,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6508 states, 6503 states have (on average 1.3416884514839305) internal successors, (8725), 6503 states have internal predecessors, (8725), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:25,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6508 states to 6508 states and 8729 transitions. [2022-02-15 00:39:25,711 INFO L78 Accepts]: Start accepts. Automaton has 6508 states and 8729 transitions. Word has length 259 [2022-02-15 00:39:25,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:25,712 INFO L470 AbstractCegarLoop]: Abstraction has 6508 states and 8729 transitions. [2022-02-15 00:39:25,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:25,712 INFO L276 IsEmpty]: Start isEmpty. Operand 6508 states and 8729 transitions. [2022-02-15 00:39:25,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-02-15 00:39:25,722 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:25,723 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:25,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 00:39:25,723 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:25,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:25,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1683519860, now seen corresponding path program 1 times [2022-02-15 00:39:25,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:25,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23549654] [2022-02-15 00:39:25,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:25,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:25,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:25,766 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 449 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-02-15 00:39:25,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:25,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23549654] [2022-02-15 00:39:25,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23549654] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:39:25,766 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:39:25,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:39:25,767 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67303940] [2022-02-15 00:39:25,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:39:25,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:39:25,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:25,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:39:25,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:39:25,767 INFO L87 Difference]: Start difference. First operand 6508 states and 8729 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:25,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:25,961 INFO L93 Difference]: Finished difference Result 4594 states and 5783 transitions. [2022-02-15 00:39:25,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:39:25,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 296 [2022-02-15 00:39:25,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:25,969 INFO L225 Difference]: With dead ends: 4594 [2022-02-15 00:39:25,969 INFO L226 Difference]: Without dead ends: 3167 [2022-02-15 00:39:25,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:39:25,971 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 223 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:25,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 220 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 00:39:25,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2022-02-15 00:39:26,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 2897. [2022-02-15 00:39:26,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2897 states, 2892 states have (on average 1.329875518672199) internal successors, (3846), 2892 states have internal predecessors, (3846), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:26,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2897 states to 2897 states and 3850 transitions. [2022-02-15 00:39:26,036 INFO L78 Accepts]: Start accepts. Automaton has 2897 states and 3850 transitions. Word has length 296 [2022-02-15 00:39:26,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:26,037 INFO L470 AbstractCegarLoop]: Abstraction has 2897 states and 3850 transitions. [2022-02-15 00:39:26,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:26,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2897 states and 3850 transitions. [2022-02-15 00:39:26,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-02-15 00:39:26,042 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:26,042 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:26,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 00:39:26,042 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:26,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:26,042 INFO L85 PathProgramCache]: Analyzing trace with hash 568997781, now seen corresponding path program 1 times [2022-02-15 00:39:26,043 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:26,043 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579078681] [2022-02-15 00:39:26,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:26,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:26,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:26,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1114 backedges. 580 proven. 0 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2022-02-15 00:39:26,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:26,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579078681] [2022-02-15 00:39:26,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579078681] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:39:26,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:39:26,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:39:26,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776283631] [2022-02-15 00:39:26,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:39:26,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:39:26,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:26,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:39:26,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:39:26,090 INFO L87 Difference]: Start difference. First operand 2897 states and 3850 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:26,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:26,266 INFO L93 Difference]: Finished difference Result 3235 states and 4288 transitions. [2022-02-15 00:39:26,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:39:26,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 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 343 [2022-02-15 00:39:26,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:26,285 INFO L225 Difference]: With dead ends: 3235 [2022-02-15 00:39:26,286 INFO L226 Difference]: Without dead ends: 3235 [2022-02-15 00:39:26,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:39:26,286 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 223 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:26,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 216 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 00:39:26,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3235 states. [2022-02-15 00:39:26,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3235 to 3167. [2022-02-15 00:39:26,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3167 states, 3162 states have (on average 1.3175205566097408) internal successors, (4166), 3162 states have internal predecessors, (4166), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:26,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3167 states to 3167 states and 4170 transitions. [2022-02-15 00:39:26,321 INFO L78 Accepts]: Start accepts. Automaton has 3167 states and 4170 transitions. Word has length 343 [2022-02-15 00:39:26,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:26,321 INFO L470 AbstractCegarLoop]: Abstraction has 3167 states and 4170 transitions. [2022-02-15 00:39:26,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:26,322 INFO L276 IsEmpty]: Start isEmpty. Operand 3167 states and 4170 transitions. [2022-02-15 00:39:26,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-02-15 00:39:26,326 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:26,327 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:26,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 00:39:26,327 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:26,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:26,327 INFO L85 PathProgramCache]: Analyzing trace with hash 437625608, now seen corresponding path program 1 times [2022-02-15 00:39:26,327 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:26,327 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302788023] [2022-02-15 00:39:26,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:26,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:26,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:26,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1327 backedges. 738 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2022-02-15 00:39:26,369 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:26,369 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302788023] [2022-02-15 00:39:26,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302788023] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:39:26,369 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:39:26,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:39:26,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915195826] [2022-02-15 00:39:26,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:39:26,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:39:26,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:26,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:39:26,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:39:26,370 INFO L87 Difference]: Start difference. First operand 3167 states and 4170 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:26,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:26,542 INFO L93 Difference]: Finished difference Result 3296 states and 4259 transitions. [2022-02-15 00:39:26,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:39:26,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 366 [2022-02-15 00:39:26,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:26,546 INFO L225 Difference]: With dead ends: 3296 [2022-02-15 00:39:26,547 INFO L226 Difference]: Without dead ends: 3296 [2022-02-15 00:39:26,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:39:26,547 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 204 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:26,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 216 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 00:39:26,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2022-02-15 00:39:26,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 2374. [2022-02-15 00:39:26,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2374 states, 2369 states have (on average 1.3085690164626425) internal successors, (3100), 2369 states have internal predecessors, (3100), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:26,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2374 states to 2374 states and 3104 transitions. [2022-02-15 00:39:26,592 INFO L78 Accepts]: Start accepts. Automaton has 2374 states and 3104 transitions. Word has length 366 [2022-02-15 00:39:26,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:26,592 INFO L470 AbstractCegarLoop]: Abstraction has 2374 states and 3104 transitions. [2022-02-15 00:39:26,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:26,592 INFO L276 IsEmpty]: Start isEmpty. Operand 2374 states and 3104 transitions. [2022-02-15 00:39:26,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-02-15 00:39:26,597 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:26,597 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:26,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 00:39:26,597 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:26,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:26,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1686734734, now seen corresponding path program 1 times [2022-02-15 00:39:26,598 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:26,598 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465222348] [2022-02-15 00:39:26,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:26,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:26,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:26,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:26,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1588 backedges. 1011 proven. 26 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2022-02-15 00:39:26,649 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:26,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465222348] [2022-02-15 00:39:26,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465222348] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:39:26,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295775935] [2022-02-15 00:39:26,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:26,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:39:26,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:39:26,675 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:39:26,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-15 00:39:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:26,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-15 00:39:26,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:39:27,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1588 backedges. 773 proven. 0 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2022-02-15 00:39:27,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-15 00:39:27,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295775935] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:39:27,266 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-15 00:39:27,267 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-15 00:39:27,267 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978031173] [2022-02-15 00:39:27,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:39:27,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 00:39:27,267 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:27,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 00:39:27,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:39:27,268 INFO L87 Difference]: Start difference. First operand 2374 states and 3104 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:27,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:27,280 INFO L93 Difference]: Finished difference Result 2709 states and 3567 transitions. [2022-02-15 00:39:27,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 00:39:27,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 399 [2022-02-15 00:39:27,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:27,284 INFO L225 Difference]: With dead ends: 2709 [2022-02-15 00:39:27,284 INFO L226 Difference]: Without dead ends: 2709 [2022-02-15 00:39:27,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:39:27,284 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 90 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:27,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 541 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 00:39:27,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2022-02-15 00:39:27,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 2238. [2022-02-15 00:39:27,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2238 states, 2233 states have (on average 1.3193013882669056) internal successors, (2946), 2233 states have internal predecessors, (2946), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:27,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2238 states to 2238 states and 2950 transitions. [2022-02-15 00:39:27,329 INFO L78 Accepts]: Start accepts. Automaton has 2238 states and 2950 transitions. Word has length 399 [2022-02-15 00:39:27,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:27,330 INFO L470 AbstractCegarLoop]: Abstraction has 2238 states and 2950 transitions. [2022-02-15 00:39:27,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:27,331 INFO L276 IsEmpty]: Start isEmpty. Operand 2238 states and 2950 transitions. [2022-02-15 00:39:27,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2022-02-15 00:39:27,334 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:27,335 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:27,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-15 00:39:27,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-02-15 00:39:27,552 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:27,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:27,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1130049276, now seen corresponding path program 1 times [2022-02-15 00:39:27,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:27,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828787540] [2022-02-15 00:39:27,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:27,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:27,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:27,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1704 backedges. 1045 proven. 26 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2022-02-15 00:39:27,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:27,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828787540] [2022-02-15 00:39:27,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828787540] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:39:27,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416929454] [2022-02-15 00:39:27,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:27,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:39:27,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:39:27,616 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:39:27,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-15 00:39:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:27,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-15 00:39:27,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:39:28,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1704 backedges. 1045 proven. 26 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2022-02-15 00:39:28,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:39:28,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1704 backedges. 1045 proven. 26 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2022-02-15 00:39:28,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416929454] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-15 00:39:28,574 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-15 00:39:28,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-02-15 00:39:28,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968407769] [2022-02-15 00:39:28,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-15 00:39:28,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 00:39:28,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:28,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 00:39:28,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-15 00:39:28,575 INFO L87 Difference]: Start difference. First operand 2238 states and 2950 transitions. Second operand has 7 states, 7 states have (on average 34.42857142857143) internal successors, (241), 6 states have internal predecessors, (241), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:29,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:29,033 INFO L93 Difference]: Finished difference Result 2891 states and 3757 transitions. [2022-02-15 00:39:29,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 00:39:29,033 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.42857142857143) internal successors, (241), 6 states have internal predecessors, (241), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 415 [2022-02-15 00:39:29,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:29,037 INFO L225 Difference]: With dead ends: 2891 [2022-02-15 00:39:29,037 INFO L226 Difference]: Without dead ends: 2844 [2022-02-15 00:39:29,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 835 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-02-15 00:39:29,037 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 762 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:29,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [762 Valid, 315 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 00:39:29,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2022-02-15 00:39:29,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2371. [2022-02-15 00:39:29,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2371 states, 2366 states have (on average 1.323330515638208) internal successors, (3131), 2366 states have internal predecessors, (3131), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:29,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 3135 transitions. [2022-02-15 00:39:29,060 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 3135 transitions. Word has length 415 [2022-02-15 00:39:29,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:29,061 INFO L470 AbstractCegarLoop]: Abstraction has 2371 states and 3135 transitions. [2022-02-15 00:39:29,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.42857142857143) internal successors, (241), 6 states have internal predecessors, (241), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:29,061 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 3135 transitions. [2022-02-15 00:39:29,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2022-02-15 00:39:29,065 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:29,066 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 10, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:29,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-15 00:39:29,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:39:29,281 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:29,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:29,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1609780516, now seen corresponding path program 1 times [2022-02-15 00:39:29,282 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:29,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030204037] [2022-02-15 00:39:29,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:29,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:29,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:29,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:29,358 INFO L134 CoverageAnalysis]: Checked inductivity of 3128 backedges. 1661 proven. 0 refuted. 0 times theorem prover too weak. 1467 trivial. 0 not checked. [2022-02-15 00:39:29,358 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:29,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030204037] [2022-02-15 00:39:29,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030204037] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:39:29,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:39:29,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:39:29,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052469437] [2022-02-15 00:39:29,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:39:29,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:39:29,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:29,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:39:29,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:39:29,361 INFO L87 Difference]: Start difference. First operand 2371 states and 3135 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:29,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:29,533 INFO L93 Difference]: Finished difference Result 2695 states and 3504 transitions. [2022-02-15 00:39:29,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:39:29,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 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 543 [2022-02-15 00:39:29,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:29,537 INFO L225 Difference]: With dead ends: 2695 [2022-02-15 00:39:29,537 INFO L226 Difference]: Without dead ends: 2695 [2022-02-15 00:39:29,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:39:29,538 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 203 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:29,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 215 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 00:39:29,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2695 states. [2022-02-15 00:39:29,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2695 to 2677. [2022-02-15 00:39:29,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2672 states have (on average 1.3031437125748504) internal successors, (3482), 2672 states have internal predecessors, (3482), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:29,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3486 transitions. [2022-02-15 00:39:29,565 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3486 transitions. Word has length 543 [2022-02-15 00:39:29,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:29,566 INFO L470 AbstractCegarLoop]: Abstraction has 2677 states and 3486 transitions. [2022-02-15 00:39:29,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:29,566 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3486 transitions. [2022-02-15 00:39:29,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2022-02-15 00:39:29,571 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:39:29,571 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 17, 17, 16, 16, 15, 15, 14, 14, 14, 14, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:29,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 00:39:29,571 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:39:29,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:39:29,572 INFO L85 PathProgramCache]: Analyzing trace with hash -754710608, now seen corresponding path program 1 times [2022-02-15 00:39:29,572 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:39:29,572 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650939257] [2022-02-15 00:39:29,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:29,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:39:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:29,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:39:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:29,682 INFO L134 CoverageAnalysis]: Checked inductivity of 4009 backedges. 2315 proven. 26 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2022-02-15 00:39:29,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:39:29,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650939257] [2022-02-15 00:39:29,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650939257] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:39:29,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581869558] [2022-02-15 00:39:29,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:39:29,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:39:29,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:39:29,708 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:39:29,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-15 00:39:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:39:29,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-15 00:39:29,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:39:30,534 INFO L134 CoverageAnalysis]: Checked inductivity of 4009 backedges. 2315 proven. 26 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2022-02-15 00:39:30,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:39:31,141 INFO L134 CoverageAnalysis]: Checked inductivity of 4009 backedges. 2315 proven. 26 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2022-02-15 00:39:31,142 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581869558] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-15 00:39:31,142 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-15 00:39:31,142 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-02-15 00:39:31,142 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712309750] [2022-02-15 00:39:31,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-15 00:39:31,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-15 00:39:31,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:39:31,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-15 00:39:31,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-02-15 00:39:31,144 INFO L87 Difference]: Start difference. First operand 2677 states and 3486 transitions. Second operand has 9 states, 9 states have (on average 37.22222222222222) internal successors, (335), 8 states have internal predecessors, (335), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:31,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:39:31,729 INFO L93 Difference]: Finished difference Result 1767 states and 2264 transitions. [2022-02-15 00:39:31,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 00:39:31,729 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 37.22222222222222) internal successors, (335), 8 states have internal predecessors, (335), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 605 [2022-02-15 00:39:31,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:39:31,730 INFO L225 Difference]: With dead ends: 1767 [2022-02-15 00:39:31,730 INFO L226 Difference]: Without dead ends: 0 [2022-02-15 00:39:31,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1223 GetRequests, 1212 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2022-02-15 00:39:31,730 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 408 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:39:31,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 313 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-15 00:39:31,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-15 00:39:31,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-15 00:39:31,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 00:39:31,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-15 00:39:31,731 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 605 [2022-02-15 00:39:31,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:39:31,731 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-15 00:39:31,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 37.22222222222222) internal successors, (335), 8 states have internal predecessors, (335), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:39:31,731 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-15 00:39:31,731 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-15 00:39:31,733 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-15 00:39:31,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-15 00:39:31,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:39:31,945 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:39:31,946 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-15 00:39:31,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 12:39:31 BasicIcfg [2022-02-15 00:39:31,949 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-15 00:39:31,949 INFO L158 Benchmark]: Toolchain (without parser) took 14544.74ms. Allocated memory was 169.9MB in the beginning and 297.8MB in the end (delta: 127.9MB). Free memory was 121.9MB in the beginning and 256.8MB in the end (delta: -134.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 00:39:31,950 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 169.9MB. Free memory was 138.5MB in the beginning and 138.5MB in the end (delta: 68.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 00:39:31,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.38ms. Allocated memory is still 169.9MB. Free memory was 121.7MB in the beginning and 142.7MB in the end (delta: -21.0MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. [2022-02-15 00:39:31,953 INFO L158 Benchmark]: Boogie Preprocessor took 57.77ms. Allocated memory is still 169.9MB. Free memory was 142.7MB in the beginning and 140.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-15 00:39:31,953 INFO L158 Benchmark]: RCFGBuilder took 434.28ms. Allocated memory is still 169.9MB. Free memory was 140.1MB in the beginning and 112.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-02-15 00:39:31,953 INFO L158 Benchmark]: IcfgTransformer took 24.51ms. Allocated memory is still 169.9MB. Free memory was 112.9MB in the beginning and 109.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-02-15 00:39:31,954 INFO L158 Benchmark]: TraceAbstraction took 13659.26ms. Allocated memory was 169.9MB in the beginning and 297.8MB in the end (delta: 127.9MB). Free memory was 109.2MB in the beginning and 256.8MB in the end (delta: -147.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 00:39:31,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 169.9MB. Free memory was 138.5MB in the beginning and 138.5MB in the end (delta: 68.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 364.38ms. Allocated memory is still 169.9MB. Free memory was 121.7MB in the beginning and 142.7MB in the end (delta: -21.0MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.77ms. Allocated memory is still 169.9MB. Free memory was 142.7MB in the beginning and 140.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 434.28ms. Allocated memory is still 169.9MB. Free memory was 140.1MB in the beginning and 112.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * IcfgTransformer took 24.51ms. Allocated memory is still 169.9MB. Free memory was 112.9MB in the beginning and 109.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * TraceAbstraction took 13659.26ms. Allocated memory was 169.9MB in the beginning and 297.8MB in the end (delta: 127.9MB). Free memory was 109.2MB in the beginning and 256.8MB in the end (delta: -147.6MB). There was no memory consumed. 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 - PositiveResult [Line: 619]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 150 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.6s, OverallIterations: 21, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6829 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6827 mSDsluCounter, 6085 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 367 mSDsCounter, 617 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7600 IncrementalHoareTripleChecker+Invalid, 8217 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 617 mSolverCounterUnsat, 5718 mSDtfsCounter, 7600 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3610 GetRequests, 3515 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6508occurred in iteration=14, InterpolantAutomatonStates: 100, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 21 MinimizatonAttempts, 3861 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 6979 NumberOfCodeBlocks, 6979 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 8466 ConstructedInterpolants, 0 QuantifiedInterpolants, 12147 SizeOfPredicates, 4 NumberOfNonLiveVariables, 3465 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 30 InterpolantComputations, 17 PerfectInterpolantSequences, 31324/31632 InterpolantCoveringCapability, 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-15 00:39:31,979 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...