/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_clnt_1.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 08:36:00,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 08:36:00,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 08:36:00,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-06 08:36:00,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-06 08:36:00,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-06 08:36:00,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-06 08:36:00,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-06 08:36:00,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-06 08:36:00,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-06 08:36:00,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-06 08:36:00,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-06 08:36:00,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-06 08:36:00,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-06 08:36:00,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-06 08:36:00,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-06 08:36:00,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-06 08:36:00,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-06 08:36:00,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-06 08:36:00,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-06 08:36:00,510 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-06 08:36:00,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-06 08:36:00,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-06 08:36:00,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-06 08:36:00,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-06 08:36:00,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-06 08:36:00,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 08:36:00,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 08:36:00,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 08:36:00,535 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-06 08:36:00,551 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 08:36:00,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 08:36:00,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 08:36:00,554 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-06 08:36:00,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 08:36:00,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-06 08:36:00,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 08:36:00,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 08:36:00,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 08:36:00,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 08:36:00,556 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-06 08:36:00,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 08:36:00,556 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 08:36:00,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 08:36:00,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 08:36:00,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 08:36:00,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-06 08:36:00,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 08:36:00,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 08:36:00,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 08:36:00,557 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-06 08:36:00,559 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-06 08:36:00,559 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 08:36:00,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 08:36:00,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 08:36:00,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 08:36:00,809 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 08:36:00,810 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 08:36:00,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_clnt_1.cil-1.c [2022-04-06 08:36:00,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9be4f588/eb497104c39b45999f8a07caa746fa21/FLAG992cc6a88 [2022-04-06 08:36:01,218 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 08:36:01,219 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_clnt_1.cil-1.c [2022-04-06 08:36:01,230 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9be4f588/eb497104c39b45999f8a07caa746fa21/FLAG992cc6a88 [2022-04-06 08:36:01,605 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9be4f588/eb497104c39b45999f8a07caa746fa21 [2022-04-06 08:36:01,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 08:36:01,609 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-06 08:36:01,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 08:36:01,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 08:36:01,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 08:36:01,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:36:01" (1/1) ... [2022-04-06 08:36:01,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a247d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:36:01, skipping insertion in model container [2022-04-06 08:36:01,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:36:01" (1/1) ... [2022-04-06 08:36:01,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 08:36:01,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 08:36:01,835 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_clnt_1.cil-1.c[35497,35510] [2022-04-06 08:36:01,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 08:36:01,860 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 08:36:01,902 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_clnt_1.cil-1.c[35497,35510] [2022-04-06 08:36:01,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 08:36:01,916 INFO L208 MainTranslator]: Completed translation [2022-04-06 08:36:01,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:36:01 WrapperNode [2022-04-06 08:36:01,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 08:36:01,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 08:36:01,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 08:36:01,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 08:36:01,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:36:01" (1/1) ... [2022-04-06 08:36:01,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:36:01" (1/1) ... [2022-04-06 08:36:01,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:36:01" (1/1) ... [2022-04-06 08:36:01,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:36:01" (1/1) ... [2022-04-06 08:36:01,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:36:01" (1/1) ... [2022-04-06 08:36:01,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:36:01" (1/1) ... [2022-04-06 08:36:01,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:36:01" (1/1) ... [2022-04-06 08:36:01,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 08:36:01,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 08:36:01,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 08:36:01,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 08:36:01,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:36:01" (1/1) ... [2022-04-06 08:36:01,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 08:36:01,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:36:01,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-06 08:36:02,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-06 08:36:02,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 08:36:02,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 08:36:02,033 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 08:36:02,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-04-06 08:36:02,033 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 08:36:02,033 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 08:36:02,033 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 08:36:02,033 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 08:36:02,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 08:36:02,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-06 08:36:02,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-06 08:36:02,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-06 08:36:02,034 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-04-06 08:36:02,034 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 08:36:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 08:36:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 08:36:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 08:36:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 08:36:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 08:36:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 08:36:02,145 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 08:36:02,146 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 08:36:02,237 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-06 08:36:02,537 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-04-06 08:36:02,538 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-04-06 08:36:02,540 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 08:36:02,547 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 08:36:02,548 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 08:36:02,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:36:02 BoogieIcfgContainer [2022-04-06 08:36:02,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 08:36:02,551 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-06 08:36:02,551 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-06 08:36:02,552 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-06 08:36:02,555 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:36:02" (1/1) ... [2022-04-06 08:36:02,557 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-06 08:36:02,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 08:36:02 BasicIcfg [2022-04-06 08:36:02,583 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-06 08:36:02,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 08:36:02,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 08:36:02,587 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 08:36:02,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 08:36:01" (1/4) ... [2022-04-06 08:36:02,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fddf0bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:36:02, skipping insertion in model container [2022-04-06 08:36:02,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:36:01" (2/4) ... [2022-04-06 08:36:02,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fddf0bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:36:02, skipping insertion in model container [2022-04-06 08:36:02,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:36:02" (3/4) ... [2022-04-06 08:36:02,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fddf0bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 08:36:02, skipping insertion in model container [2022-04-06 08:36:02,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 08:36:02" (4/4) ... [2022-04-06 08:36:02,590 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-1.cJordan [2022-04-06 08:36:02,595 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-06 08:36:02,595 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 08:36:02,632 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 08:36:02,638 INFO L340 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 [2022-04-06 08:36:02,638 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 08:36:02,658 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 128 states have (on average 1.703125) internal successors, (218), 129 states have internal predecessors, (218), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-06 08:36:02,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-06 08:36:02,676 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:02,677 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:02,677 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:02,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:02,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1429632901, now seen corresponding path program 1 times [2022-04-06 08:36:02,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:02,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169856130] [2022-04-06 08:36:02,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:02,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:02,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:02,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:36:02,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:02,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169856130] [2022-04-06 08:36:02,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169856130] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:02,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:02,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:02,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48410878] [2022-04-06 08:36:02,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:02,990 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:02,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:03,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:03,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:03,024 INFO L87 Difference]: Start difference. First operand has 136 states, 128 states have (on average 1.703125) internal successors, (218), 129 states have internal predecessors, (218), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:03,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:03,452 INFO L93 Difference]: Finished difference Result 250 states and 410 transitions. [2022-04-06 08:36:03,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:03,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-04-06 08:36:03,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:03,464 INFO L225 Difference]: With dead ends: 250 [2022-04-06 08:36:03,464 INFO L226 Difference]: Without dead ends: 217 [2022-04-06 08:36:03,466 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:03,469 INFO L913 BasicCegarLoop]: 214 mSDtfsCounter, 575 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:03,470 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [577 Valid, 223 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-06 08:36:03,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-04-06 08:36:03,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2022-04-06 08:36:03,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.4952830188679245) internal successors, (317), 212 states have internal predecessors, (317), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:03,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 321 transitions. [2022-04-06 08:36:03,514 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 321 transitions. Word has length 30 [2022-04-06 08:36:03,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:03,515 INFO L478 AbstractCegarLoop]: Abstraction has 217 states and 321 transitions. [2022-04-06 08:36:03,515 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:03,515 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 321 transitions. [2022-04-06 08:36:03,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-04-06 08:36:03,517 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:03,517 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:03,518 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 08:36:03,518 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:03,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:03,519 INFO L85 PathProgramCache]: Analyzing trace with hash -249836072, now seen corresponding path program 1 times [2022-04-06 08:36:03,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:03,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185122022] [2022-04-06 08:36:03,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:03,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:03,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:03,621 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:36:03,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:03,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185122022] [2022-04-06 08:36:03,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185122022] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:03,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:03,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:03,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635718851] [2022-04-06 08:36:03,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:03,624 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:03,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:03,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:03,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:03,625 INFO L87 Difference]: Start difference. First operand 217 states and 321 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:03,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:03,819 INFO L93 Difference]: Finished difference Result 242 states and 354 transitions. [2022-04-06 08:36:03,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:03,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 44 [2022-04-06 08:36:03,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:03,825 INFO L225 Difference]: With dead ends: 242 [2022-04-06 08:36:03,826 INFO L226 Difference]: Without dead ends: 242 [2022-04-06 08:36:03,829 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:03,831 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 188 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:03,831 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 192 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 08:36:03,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-04-06 08:36:03,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 234. [2022-04-06 08:36:03,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 229 states have (on average 1.480349344978166) internal successors, (339), 229 states have internal predecessors, (339), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:03,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 343 transitions. [2022-04-06 08:36:03,855 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 343 transitions. Word has length 44 [2022-04-06 08:36:03,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:03,860 INFO L478 AbstractCegarLoop]: Abstraction has 234 states and 343 transitions. [2022-04-06 08:36:03,861 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:03,861 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 343 transitions. [2022-04-06 08:36:03,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-04-06 08:36:03,863 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:03,863 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:03,863 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 08:36:03,864 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:03,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:03,864 INFO L85 PathProgramCache]: Analyzing trace with hash 55715608, now seen corresponding path program 1 times [2022-04-06 08:36:03,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:03,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714389486] [2022-04-06 08:36:03,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:03,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:03,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:03,969 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:36:03,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:03,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714389486] [2022-04-06 08:36:03,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714389486] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:03,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:03,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:03,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078466943] [2022-04-06 08:36:03,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:03,971 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:03,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:03,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:03,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:03,972 INFO L87 Difference]: Start difference. First operand 234 states and 343 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:04,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:04,166 INFO L93 Difference]: Finished difference Result 255 states and 370 transitions. [2022-04-06 08:36:04,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:04,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 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 61 [2022-04-06 08:36:04,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:04,168 INFO L225 Difference]: With dead ends: 255 [2022-04-06 08:36:04,168 INFO L226 Difference]: Without dead ends: 255 [2022-04-06 08:36:04,171 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:04,175 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 182 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:04,177 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 203 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 08:36:04,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-04-06 08:36:04,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2022-04-06 08:36:04,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 250 states have (on average 1.464) internal successors, (366), 250 states have internal predecessors, (366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:04,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 370 transitions. [2022-04-06 08:36:04,195 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 370 transitions. Word has length 61 [2022-04-06 08:36:04,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:04,196 INFO L478 AbstractCegarLoop]: Abstraction has 255 states and 370 transitions. [2022-04-06 08:36:04,196 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:04,196 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 370 transitions. [2022-04-06 08:36:04,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-04-06 08:36:04,198 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:04,198 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:04,198 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-06 08:36:04,198 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:04,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:04,199 INFO L85 PathProgramCache]: Analyzing trace with hash 2132924951, now seen corresponding path program 1 times [2022-04-06 08:36:04,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:04,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468937676] [2022-04-06 08:36:04,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:04,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:04,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:04,310 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-04-06 08:36:04,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:04,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468937676] [2022-04-06 08:36:04,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468937676] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:04,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:04,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:04,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717286223] [2022-04-06 08:36:04,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:04,312 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:04,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:04,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:04,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:04,312 INFO L87 Difference]: Start difference. First operand 255 states and 370 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:04,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:04,548 INFO L93 Difference]: Finished difference Result 357 states and 494 transitions. [2022-04-06 08:36:04,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:04,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 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 61 [2022-04-06 08:36:04,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:04,550 INFO L225 Difference]: With dead ends: 357 [2022-04-06 08:36:04,550 INFO L226 Difference]: Without dead ends: 355 [2022-04-06 08:36:04,550 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:04,551 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 208 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:04,551 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 203 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 08:36:04,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-04-06 08:36:04,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 337. [2022-04-06 08:36:04,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 332 states have (on average 1.4036144578313252) internal successors, (466), 332 states have internal predecessors, (466), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:04,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 470 transitions. [2022-04-06 08:36:04,561 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 470 transitions. Word has length 61 [2022-04-06 08:36:04,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:04,562 INFO L478 AbstractCegarLoop]: Abstraction has 337 states and 470 transitions. [2022-04-06 08:36:04,562 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:04,562 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 470 transitions. [2022-04-06 08:36:04,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-04-06 08:36:04,564 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:04,564 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:04,564 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-06 08:36:04,564 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:04,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:04,565 INFO L85 PathProgramCache]: Analyzing trace with hash -917277864, now seen corresponding path program 1 times [2022-04-06 08:36:04,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:04,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351478293] [2022-04-06 08:36:04,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:04,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:04,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:04,611 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-04-06 08:36:04,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:04,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351478293] [2022-04-06 08:36:04,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351478293] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:04,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:04,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:04,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274351186] [2022-04-06 08:36:04,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:04,612 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:04,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:04,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:04,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:04,613 INFO L87 Difference]: Start difference. First operand 337 states and 470 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:04,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:04,807 INFO L93 Difference]: Finished difference Result 383 states and 529 transitions. [2022-04-06 08:36:04,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:04,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 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 61 [2022-04-06 08:36:04,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:04,814 INFO L225 Difference]: With dead ends: 383 [2022-04-06 08:36:04,814 INFO L226 Difference]: Without dead ends: 383 [2022-04-06 08:36:04,819 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:04,821 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 188 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:04,821 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 193 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 08:36:04,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-04-06 08:36:04,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 375. [2022-04-06 08:36:04,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.3891891891891892) internal successors, (514), 370 states have internal predecessors, (514), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:04,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 518 transitions. [2022-04-06 08:36:04,832 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 518 transitions. Word has length 61 [2022-04-06 08:36:04,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:04,834 INFO L478 AbstractCegarLoop]: Abstraction has 375 states and 518 transitions. [2022-04-06 08:36:04,834 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:04,834 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 518 transitions. [2022-04-06 08:36:04,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-04-06 08:36:04,837 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:04,838 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:04,838 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-06 08:36:04,838 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:04,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:04,839 INFO L85 PathProgramCache]: Analyzing trace with hash 414496236, now seen corresponding path program 1 times [2022-04-06 08:36:04,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:04,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781031820] [2022-04-06 08:36:04,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:04,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:04,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:04,918 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-04-06 08:36:04,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:04,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781031820] [2022-04-06 08:36:04,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781031820] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:04,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:04,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:04,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959471655] [2022-04-06 08:36:04,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:04,919 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:04,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:04,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:04,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:04,920 INFO L87 Difference]: Start difference. First operand 375 states and 518 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:05,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:05,118 INFO L93 Difference]: Finished difference Result 481 states and 686 transitions. [2022-04-06 08:36:05,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:05,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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 74 [2022-04-06 08:36:05,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:05,121 INFO L225 Difference]: With dead ends: 481 [2022-04-06 08:36:05,121 INFO L226 Difference]: Without dead ends: 479 [2022-04-06 08:36:05,121 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:05,122 INFO L913 BasicCegarLoop]: 173 mSDtfsCounter, 293 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:05,122 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 180 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 08:36:05,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-04-06 08:36:05,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 453. [2022-04-06 08:36:05,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.4464285714285714) internal successors, (648), 448 states have internal predecessors, (648), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:05,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 652 transitions. [2022-04-06 08:36:05,132 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 652 transitions. Word has length 74 [2022-04-06 08:36:05,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:05,133 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 652 transitions. [2022-04-06 08:36:05,133 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:05,133 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 652 transitions. [2022-04-06 08:36:05,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-04-06 08:36:05,134 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:05,134 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2022-04-06 08:36:05,134 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-06 08:36:05,135 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:05,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:05,135 INFO L85 PathProgramCache]: Analyzing trace with hash -284056342, now seen corresponding path program 1 times [2022-04-06 08:36:05,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:05,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600934884] [2022-04-06 08:36:05,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:05,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:05,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:05,190 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-04-06 08:36:05,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:05,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600934884] [2022-04-06 08:36:05,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600934884] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:05,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:05,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:05,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020070486] [2022-04-06 08:36:05,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:05,191 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:05,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:05,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:05,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:05,192 INFO L87 Difference]: Start difference. First operand 453 states and 652 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:05,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:05,349 INFO L93 Difference]: Finished difference Result 501 states and 711 transitions. [2022-04-06 08:36:05,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:05,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-04-06 08:36:05,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:05,352 INFO L225 Difference]: With dead ends: 501 [2022-04-06 08:36:05,352 INFO L226 Difference]: Without dead ends: 501 [2022-04-06 08:36:05,352 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:05,353 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 184 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:05,353 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 192 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-06 08:36:05,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-04-06 08:36:05,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 495. [2022-04-06 08:36:05,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 490 states have (on average 1.4285714285714286) internal successors, (700), 490 states have internal predecessors, (700), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:05,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 704 transitions. [2022-04-06 08:36:05,364 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 704 transitions. Word has length 77 [2022-04-06 08:36:05,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:05,364 INFO L478 AbstractCegarLoop]: Abstraction has 495 states and 704 transitions. [2022-04-06 08:36:05,364 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:05,364 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 704 transitions. [2022-04-06 08:36:05,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-04-06 08:36:05,366 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:05,366 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:05,366 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-06 08:36:05,366 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:05,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:05,367 INFO L85 PathProgramCache]: Analyzing trace with hash 867065265, now seen corresponding path program 1 times [2022-04-06 08:36:05,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:05,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462887658] [2022-04-06 08:36:05,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:05,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:05,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:05,410 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-04-06 08:36:05,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:05,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462887658] [2022-04-06 08:36:05,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462887658] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:05,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:05,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:05,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932253583] [2022-04-06 08:36:05,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:05,411 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:05,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:05,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:05,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:05,412 INFO L87 Difference]: Start difference. First operand 495 states and 704 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) [2022-04-06 08:36:05,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:05,564 INFO L93 Difference]: Finished difference Result 733 states and 1042 transitions. [2022-04-06 08:36:05,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:05,564 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 97 [2022-04-06 08:36:05,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:05,567 INFO L225 Difference]: With dead ends: 733 [2022-04-06 08:36:05,567 INFO L226 Difference]: Without dead ends: 733 [2022-04-06 08:36:05,568 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:05,568 INFO L913 BasicCegarLoop]: 315 mSDtfsCounter, 294 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:05,568 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 322 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-06 08:36:05,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2022-04-06 08:36:05,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 733. [2022-04-06 08:36:05,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 728 states have (on average 1.4258241758241759) internal successors, (1038), 728 states have internal predecessors, (1038), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:05,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1042 transitions. [2022-04-06 08:36:05,582 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1042 transitions. Word has length 97 [2022-04-06 08:36:05,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:05,582 INFO L478 AbstractCegarLoop]: Abstraction has 733 states and 1042 transitions. [2022-04-06 08:36:05,582 INFO L479 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) [2022-04-06 08:36:05,583 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1042 transitions. [2022-04-06 08:36:05,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-04-06 08:36:05,584 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:05,584 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:05,584 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-06 08:36:05,584 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:05,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:05,585 INFO L85 PathProgramCache]: Analyzing trace with hash -2105140516, now seen corresponding path program 1 times [2022-04-06 08:36:05,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:05,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154375573] [2022-04-06 08:36:05,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:05,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:05,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:05,625 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-04-06 08:36:05,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:05,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154375573] [2022-04-06 08:36:05,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154375573] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:05,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:05,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:05,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450368988] [2022-04-06 08:36:05,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:05,626 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:05,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:05,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:05,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:05,627 INFO L87 Difference]: Start difference. First operand 733 states and 1042 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:05,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:05,791 INFO L93 Difference]: Finished difference Result 972 states and 1386 transitions. [2022-04-06 08:36:05,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:05,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 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 99 [2022-04-06 08:36:05,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:05,795 INFO L225 Difference]: With dead ends: 972 [2022-04-06 08:36:05,795 INFO L226 Difference]: Without dead ends: 972 [2022-04-06 08:36:05,795 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:05,798 INFO L913 BasicCegarLoop]: 163 mSDtfsCounter, 456 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:05,798 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [456 Valid, 170 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-06 08:36:05,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2022-04-06 08:36:05,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 972. [2022-04-06 08:36:05,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 967 states have (on average 1.4291623578076524) internal successors, (1382), 967 states have internal predecessors, (1382), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:05,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1386 transitions. [2022-04-06 08:36:05,817 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1386 transitions. Word has length 99 [2022-04-06 08:36:05,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:05,818 INFO L478 AbstractCegarLoop]: Abstraction has 972 states and 1386 transitions. [2022-04-06 08:36:05,819 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:05,819 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1386 transitions. [2022-04-06 08:36:05,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-04-06 08:36:05,821 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:05,822 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:05,822 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-06 08:36:05,822 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:05,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:05,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1291902012, now seen corresponding path program 1 times [2022-04-06 08:36:05,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:05,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498981536] [2022-04-06 08:36:05,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:05,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:05,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:05,888 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-04-06 08:36:05,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:05,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498981536] [2022-04-06 08:36:05,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498981536] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:05,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:05,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:05,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192315400] [2022-04-06 08:36:05,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:05,889 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:05,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:05,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:05,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:05,890 INFO L87 Difference]: Start difference. First operand 972 states and 1386 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:06,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:06,076 INFO L93 Difference]: Finished difference Result 1078 states and 1512 transitions. [2022-04-06 08:36:06,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:06,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-04-06 08:36:06,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:06,081 INFO L225 Difference]: With dead ends: 1078 [2022-04-06 08:36:06,081 INFO L226 Difference]: Without dead ends: 1078 [2022-04-06 08:36:06,081 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:06,081 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 186 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:06,082 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 192 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 08:36:06,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2022-04-06 08:36:06,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1064. [2022-04-06 08:36:06,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 1059 states have (on average 1.4107648725212465) internal successors, (1494), 1059 states have internal predecessors, (1494), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:06,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1498 transitions. [2022-04-06 08:36:06,101 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1498 transitions. Word has length 124 [2022-04-06 08:36:06,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:06,102 INFO L478 AbstractCegarLoop]: Abstraction has 1064 states and 1498 transitions. [2022-04-06 08:36:06,102 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:06,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1498 transitions. [2022-04-06 08:36:06,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-06 08:36:06,104 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:06,105 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:06,105 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-06 08:36:06,105 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:06,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:06,105 INFO L85 PathProgramCache]: Analyzing trace with hash 28142000, now seen corresponding path program 1 times [2022-04-06 08:36:06,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:06,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645818054] [2022-04-06 08:36:06,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:06,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:06,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:06,151 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-04-06 08:36:06,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:06,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645818054] [2022-04-06 08:36:06,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645818054] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:06,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:06,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:06,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432289182] [2022-04-06 08:36:06,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:06,153 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:06,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:06,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:06,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:06,153 INFO L87 Difference]: Start difference. First operand 1064 states and 1498 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:06,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:06,359 INFO L93 Difference]: Finished difference Result 1268 states and 1778 transitions. [2022-04-06 08:36:06,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:06,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 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 145 [2022-04-06 08:36:06,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:06,365 INFO L225 Difference]: With dead ends: 1268 [2022-04-06 08:36:06,365 INFO L226 Difference]: Without dead ends: 1260 [2022-04-06 08:36:06,365 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:06,366 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 222 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:06,366 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 203 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 08:36:06,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2022-04-06 08:36:06,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1220. [2022-04-06 08:36:06,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1215 states have (on average 1.4139917695473252) internal successors, (1718), 1215 states have internal predecessors, (1718), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:06,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1722 transitions. [2022-04-06 08:36:06,388 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1722 transitions. Word has length 145 [2022-04-06 08:36:06,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:06,388 INFO L478 AbstractCegarLoop]: Abstraction has 1220 states and 1722 transitions. [2022-04-06 08:36:06,389 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:06,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1722 transitions. [2022-04-06 08:36:06,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-04-06 08:36:06,392 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:06,392 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:06,392 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-06 08:36:06,392 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:06,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:06,395 INFO L85 PathProgramCache]: Analyzing trace with hash -34972528, now seen corresponding path program 1 times [2022-04-06 08:36:06,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:06,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340808586] [2022-04-06 08:36:06,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:06,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:06,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:06,459 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-04-06 08:36:06,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:06,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340808586] [2022-04-06 08:36:06,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340808586] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:06,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:06,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:06,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014318700] [2022-04-06 08:36:06,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:06,460 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:06,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:06,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:06,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:06,461 INFO L87 Difference]: Start difference. First operand 1220 states and 1722 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) [2022-04-06 08:36:06,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:06,646 INFO L93 Difference]: Finished difference Result 1340 states and 1862 transitions. [2022-04-06 08:36:06,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:06,647 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 181 [2022-04-06 08:36:06,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:06,651 INFO L225 Difference]: With dead ends: 1340 [2022-04-06 08:36:06,652 INFO L226 Difference]: Without dead ends: 1340 [2022-04-06 08:36:06,652 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:06,653 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 181 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:06,653 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 192 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 08:36:06,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2022-04-06 08:36:06,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1332. [2022-04-06 08:36:06,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1327 states have (on average 1.3941220798794274) internal successors, (1850), 1327 states have internal predecessors, (1850), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:06,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1854 transitions. [2022-04-06 08:36:06,704 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1854 transitions. Word has length 181 [2022-04-06 08:36:06,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:06,704 INFO L478 AbstractCegarLoop]: Abstraction has 1332 states and 1854 transitions. [2022-04-06 08:36:06,705 INFO L479 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) [2022-04-06 08:36:06,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1854 transitions. [2022-04-06 08:36:06,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-04-06 08:36:06,708 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:06,708 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:06,709 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-06 08:36:06,709 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:06,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:06,709 INFO L85 PathProgramCache]: Analyzing trace with hash 245377361, now seen corresponding path program 1 times [2022-04-06 08:36:06,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:06,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967827727] [2022-04-06 08:36:06,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:06,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:06,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:06,760 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-04-06 08:36:06,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:06,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967827727] [2022-04-06 08:36:06,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967827727] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:06,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:06,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:06,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337912767] [2022-04-06 08:36:06,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:06,762 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:06,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:06,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:06,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:06,763 INFO L87 Difference]: Start difference. First operand 1332 states and 1854 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) [2022-04-06 08:36:06,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:06,936 INFO L93 Difference]: Finished difference Result 1468 states and 2014 transitions. [2022-04-06 08:36:06,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:06,937 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 181 [2022-04-06 08:36:06,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:06,942 INFO L225 Difference]: With dead ends: 1468 [2022-04-06 08:36:06,942 INFO L226 Difference]: Without dead ends: 1468 [2022-04-06 08:36:06,942 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:06,943 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 183 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:06,943 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 193 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 08:36:06,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2022-04-06 08:36:06,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1456. [2022-04-06 08:36:06,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1451 states have (on average 1.3742246726395588) internal successors, (1994), 1451 states have internal predecessors, (1994), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:06,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1998 transitions. [2022-04-06 08:36:06,972 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1998 transitions. Word has length 181 [2022-04-06 08:36:06,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:06,972 INFO L478 AbstractCegarLoop]: Abstraction has 1456 states and 1998 transitions. [2022-04-06 08:36:06,972 INFO L479 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) [2022-04-06 08:36:06,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1998 transitions. [2022-04-06 08:36:06,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-04-06 08:36:06,976 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:06,976 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:06,976 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-06 08:36:06,977 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:06,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:06,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1018474241, now seen corresponding path program 1 times [2022-04-06 08:36:06,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:06,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150215051] [2022-04-06 08:36:06,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:06,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:07,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:07,048 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-04-06 08:36:07,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:07,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150215051] [2022-04-06 08:36:07,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150215051] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:07,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:07,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:07,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862293859] [2022-04-06 08:36:07,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:07,049 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:07,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:07,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:07,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:07,050 INFO L87 Difference]: Start difference. First operand 1456 states and 1998 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:07,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:07,206 INFO L93 Difference]: Finished difference Result 2895 states and 3971 transitions. [2022-04-06 08:36:07,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:07,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 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 211 [2022-04-06 08:36:07,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:07,216 INFO L225 Difference]: With dead ends: 2895 [2022-04-06 08:36:07,216 INFO L226 Difference]: Without dead ends: 2895 [2022-04-06 08:36:07,217 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:07,217 INFO L913 BasicCegarLoop]: 325 mSDtfsCounter, 296 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:07,217 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 332 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-06 08:36:07,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2895 states. [2022-04-06 08:36:07,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2895 to 2893. [2022-04-06 08:36:07,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2888 states have (on average 1.3732686980609419) internal successors, (3966), 2888 states have internal predecessors, (3966), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:07,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 3970 transitions. [2022-04-06 08:36:07,288 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 3970 transitions. Word has length 211 [2022-04-06 08:36:07,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:07,288 INFO L478 AbstractCegarLoop]: Abstraction has 2893 states and 3970 transitions. [2022-04-06 08:36:07,289 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:07,289 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 3970 transitions. [2022-04-06 08:36:07,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-04-06 08:36:07,294 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:07,295 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:07,295 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-06 08:36:07,295 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:07,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:07,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1298824130, now seen corresponding path program 1 times [2022-04-06 08:36:07,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:07,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965482214] [2022-04-06 08:36:07,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:07,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:07,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:07,347 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-04-06 08:36:07,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:07,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965482214] [2022-04-06 08:36:07,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965482214] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:07,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:07,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:07,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283016563] [2022-04-06 08:36:07,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:07,349 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:07,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:07,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:07,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:07,349 INFO L87 Difference]: Start difference. First operand 2893 states and 3970 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:07,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:07,556 INFO L93 Difference]: Finished difference Result 3193 states and 4310 transitions. [2022-04-06 08:36:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:07,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 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 211 [2022-04-06 08:36:07,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:07,567 INFO L225 Difference]: With dead ends: 3193 [2022-04-06 08:36:07,567 INFO L226 Difference]: Without dead ends: 3193 [2022-04-06 08:36:07,568 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:07,568 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 182 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:07,568 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 193 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 08:36:07,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3193 states. [2022-04-06 08:36:07,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3193 to 3177. [2022-04-06 08:36:07,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3177 states, 3172 states have (on average 1.3524590163934427) internal successors, (4290), 3172 states have internal predecessors, (4290), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:07,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3177 states to 3177 states and 4294 transitions. [2022-04-06 08:36:07,628 INFO L78 Accepts]: Start accepts. Automaton has 3177 states and 4294 transitions. Word has length 211 [2022-04-06 08:36:07,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:07,629 INFO L478 AbstractCegarLoop]: Abstraction has 3177 states and 4294 transitions. [2022-04-06 08:36:07,629 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:07,629 INFO L276 IsEmpty]: Start isEmpty. Operand 3177 states and 4294 transitions. [2022-04-06 08:36:07,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-04-06 08:36:07,635 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:07,635 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:07,635 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-06 08:36:07,635 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:07,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:07,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1065824251, now seen corresponding path program 1 times [2022-04-06 08:36:07,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:07,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580546154] [2022-04-06 08:36:07,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:07,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:07,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:07,692 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-04-06 08:36:07,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:07,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580546154] [2022-04-06 08:36:07,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580546154] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:07,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:07,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:07,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482800504] [2022-04-06 08:36:07,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:07,694 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:07,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:07,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:07,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:07,695 INFO L87 Difference]: Start difference. First operand 3177 states and 4294 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:07,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:07,893 INFO L93 Difference]: Finished difference Result 3325 states and 4462 transitions. [2022-04-06 08:36:07,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:07,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 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 235 [2022-04-06 08:36:07,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:07,904 INFO L225 Difference]: With dead ends: 3325 [2022-04-06 08:36:07,904 INFO L226 Difference]: Without dead ends: 3325 [2022-04-06 08:36:07,905 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:07,905 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 181 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:07,905 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 192 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 08:36:07,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3325 states. [2022-04-06 08:36:07,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3325 to 3309. [2022-04-06 08:36:07,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3309 states, 3304 states have (on average 1.3444309927360776) internal successors, (4442), 3304 states have internal predecessors, (4442), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:07,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3309 states to 3309 states and 4446 transitions. [2022-04-06 08:36:07,969 INFO L78 Accepts]: Start accepts. Automaton has 3309 states and 4446 transitions. Word has length 235 [2022-04-06 08:36:07,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:07,969 INFO L478 AbstractCegarLoop]: Abstraction has 3309 states and 4446 transitions. [2022-04-06 08:36:07,970 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:07,970 INFO L276 IsEmpty]: Start isEmpty. Operand 3309 states and 4446 transitions. [2022-04-06 08:36:07,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-04-06 08:36:07,976 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:07,976 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:07,977 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-06 08:36:07,977 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:07,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:07,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1242927237, now seen corresponding path program 1 times [2022-04-06 08:36:07,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:07,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010620670] [2022-04-06 08:36:07,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:07,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:08,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:08,029 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2022-04-06 08:36:08,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:08,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010620670] [2022-04-06 08:36:08,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010620670] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:08,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:08,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:08,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176317919] [2022-04-06 08:36:08,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:08,030 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:08,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:08,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:08,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:08,031 INFO L87 Difference]: Start difference. First operand 3309 states and 4446 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:08,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:08,264 INFO L93 Difference]: Finished difference Result 3709 states and 4918 transitions. [2022-04-06 08:36:08,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:08,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 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 246 [2022-04-06 08:36:08,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:08,276 INFO L225 Difference]: With dead ends: 3709 [2022-04-06 08:36:08,277 INFO L226 Difference]: Without dead ends: 3709 [2022-04-06 08:36:08,277 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:08,277 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 223 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:08,278 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 193 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 08:36:08,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3709 states. [2022-04-06 08:36:08,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3709 to 3621. [2022-04-06 08:36:08,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 3616 states have (on average 1.3301991150442478) internal successors, (4810), 3616 states have internal predecessors, (4810), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:08,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 4814 transitions. [2022-04-06 08:36:08,347 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 4814 transitions. Word has length 246 [2022-04-06 08:36:08,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:08,348 INFO L478 AbstractCegarLoop]: Abstraction has 3621 states and 4814 transitions. [2022-04-06 08:36:08,348 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:08,348 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 4814 transitions. [2022-04-06 08:36:08,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-04-06 08:36:08,356 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:08,356 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:08,356 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-06 08:36:08,356 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:08,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:08,357 INFO L85 PathProgramCache]: Analyzing trace with hash 2060787207, now seen corresponding path program 1 times [2022-04-06 08:36:08,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:08,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144055047] [2022-04-06 08:36:08,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:08,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:08,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:08,408 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2022-04-06 08:36:08,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:08,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144055047] [2022-04-06 08:36:08,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144055047] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:08,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:08,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:08,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653535594] [2022-04-06 08:36:08,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:08,409 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:08,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:08,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:08,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:08,410 INFO L87 Difference]: Start difference. First operand 3621 states and 4814 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:08,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:08,595 INFO L93 Difference]: Finished difference Result 4029 states and 5262 transitions. [2022-04-06 08:36:08,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:08,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 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 260 [2022-04-06 08:36:08,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:08,609 INFO L225 Difference]: With dead ends: 4029 [2022-04-06 08:36:08,610 INFO L226 Difference]: Without dead ends: 4029 [2022-04-06 08:36:08,610 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:08,610 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 277 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:08,611 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 191 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 08:36:08,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2022-04-06 08:36:08,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 3741. [2022-04-06 08:36:08,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3741 states, 3736 states have (on average 1.326017130620985) internal successors, (4954), 3736 states have internal predecessors, (4954), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:08,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3741 states to 3741 states and 4958 transitions. [2022-04-06 08:36:08,702 INFO L78 Accepts]: Start accepts. Automaton has 3741 states and 4958 transitions. Word has length 260 [2022-04-06 08:36:08,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:08,703 INFO L478 AbstractCegarLoop]: Abstraction has 3741 states and 4958 transitions. [2022-04-06 08:36:08,703 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:08,704 INFO L276 IsEmpty]: Start isEmpty. Operand 3741 states and 4958 transitions. [2022-04-06 08:36:08,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-04-06 08:36:08,712 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:08,712 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:08,712 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-06 08:36:08,712 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:08,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:08,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1573739583, now seen corresponding path program 1 times [2022-04-06 08:36:08,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:08,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033906242] [2022-04-06 08:36:08,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:08,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:08,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:08,775 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2022-04-06 08:36:08,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:08,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033906242] [2022-04-06 08:36:08,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033906242] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:08,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:08,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:08,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111366489] [2022-04-06 08:36:08,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:08,776 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:08,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:08,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:08,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:08,776 INFO L87 Difference]: Start difference. First operand 3741 states and 4958 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:08,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:08,970 INFO L93 Difference]: Finished difference Result 6965 states and 9283 transitions. [2022-04-06 08:36:08,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:08,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 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 261 [2022-04-06 08:36:08,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:09,001 INFO L225 Difference]: With dead ends: 6965 [2022-04-06 08:36:09,002 INFO L226 Difference]: Without dead ends: 6965 [2022-04-06 08:36:09,002 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:09,003 INFO L913 BasicCegarLoop]: 316 mSDtfsCounter, 258 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:09,003 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 323 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 08:36:09,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6965 states. [2022-04-06 08:36:09,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6965 to 6963. [2022-04-06 08:36:09,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6963 states, 6958 states have (on average 1.3334291463064099) internal successors, (9278), 6958 states have internal predecessors, (9278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:09,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6963 states to 6963 states and 9282 transitions. [2022-04-06 08:36:09,114 INFO L78 Accepts]: Start accepts. Automaton has 6963 states and 9282 transitions. Word has length 261 [2022-04-06 08:36:09,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:09,114 INFO L478 AbstractCegarLoop]: Abstraction has 6963 states and 9282 transitions. [2022-04-06 08:36:09,114 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:09,115 INFO L276 IsEmpty]: Start isEmpty. Operand 6963 states and 9282 transitions. [2022-04-06 08:36:09,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-04-06 08:36:09,125 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:09,125 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:09,125 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-06 08:36:09,125 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:09,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:09,126 INFO L85 PathProgramCache]: Analyzing trace with hash 2124357282, now seen corresponding path program 1 times [2022-04-06 08:36:09,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:09,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813912815] [2022-04-06 08:36:09,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:09,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:09,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:09,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:09,184 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 347 proven. 0 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2022-04-06 08:36:09,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:09,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813912815] [2022-04-06 08:36:09,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813912815] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:09,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:09,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:09,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670250736] [2022-04-06 08:36:09,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:09,185 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:09,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:09,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:09,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:09,185 INFO L87 Difference]: Start difference. First operand 6963 states and 9282 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:09,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:09,395 INFO L93 Difference]: Finished difference Result 6971 states and 9098 transitions. [2022-04-06 08:36:09,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:09,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 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 262 [2022-04-06 08:36:09,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:09,409 INFO L225 Difference]: With dead ends: 6971 [2022-04-06 08:36:09,409 INFO L226 Difference]: Without dead ends: 6971 [2022-04-06 08:36:09,410 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:09,411 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 181 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:09,411 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 192 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 08:36:09,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6971 states. [2022-04-06 08:36:09,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6971 to 6939. [2022-04-06 08:36:09,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6939 states, 6934 states have (on average 1.3068935679261608) internal successors, (9062), 6934 states have internal predecessors, (9062), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:09,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6939 states to 6939 states and 9066 transitions. [2022-04-06 08:36:09,572 INFO L78 Accepts]: Start accepts. Automaton has 6939 states and 9066 transitions. Word has length 262 [2022-04-06 08:36:09,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:09,573 INFO L478 AbstractCegarLoop]: Abstraction has 6939 states and 9066 transitions. [2022-04-06 08:36:09,573 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:09,573 INFO L276 IsEmpty]: Start isEmpty. Operand 6939 states and 9066 transitions. [2022-04-06 08:36:09,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-04-06 08:36:09,586 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:09,587 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:09,587 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-06 08:36:09,587 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:09,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:09,588 INFO L85 PathProgramCache]: Analyzing trace with hash 631259348, now seen corresponding path program 1 times [2022-04-06 08:36:09,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:09,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162745074] [2022-04-06 08:36:09,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:09,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:09,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:09,667 INFO L134 CoverageAnalysis]: Checked inductivity of 862 backedges. 318 proven. 18 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2022-04-06 08:36:09,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:09,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162745074] [2022-04-06 08:36:09,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162745074] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:36:09,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045424099] [2022-04-06 08:36:09,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:09,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:36:09,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:36:09,669 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 08:36:09,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-06 08:36:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:09,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 4 conjunts are in the unsatisfiable core [2022-04-06 08:36:09,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:36:10,305 INFO L134 CoverageAnalysis]: Checked inductivity of 862 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 782 trivial. 0 not checked. [2022-04-06 08:36:10,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-06 08:36:10,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045424099] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:10,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-06 08:36:10,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-04-06 08:36:10,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837611258] [2022-04-06 08:36:10,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:10,306 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:10,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:10,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:10,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-04-06 08:36:10,307 INFO L87 Difference]: Start difference. First operand 6939 states and 9066 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:10,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:10,455 INFO L93 Difference]: Finished difference Result 7117 states and 9278 transitions. [2022-04-06 08:36:10,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:10,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 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 285 [2022-04-06 08:36:10,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:10,470 INFO L225 Difference]: With dead ends: 7117 [2022-04-06 08:36:10,471 INFO L226 Difference]: Without dead ends: 7089 [2022-04-06 08:36:10,471 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-06 08:36:10,471 INFO L913 BasicCegarLoop]: 149 mSDtfsCounter, 248 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:10,472 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [248 Valid, 233 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-06 08:36:10,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7089 states. [2022-04-06 08:36:10,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7089 to 6945. [2022-04-06 08:36:10,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6945 states, 6940 states have (on average 1.3069164265129682) internal successors, (9070), 6940 states have internal predecessors, (9070), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:10,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6945 states to 6945 states and 9074 transitions. [2022-04-06 08:36:10,600 INFO L78 Accepts]: Start accepts. Automaton has 6945 states and 9074 transitions. Word has length 285 [2022-04-06 08:36:10,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:10,600 INFO L478 AbstractCegarLoop]: Abstraction has 6945 states and 9074 transitions. [2022-04-06 08:36:10,600 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:10,600 INFO L276 IsEmpty]: Start isEmpty. Operand 6945 states and 9074 transitions. [2022-04-06 08:36:10,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-04-06 08:36:10,612 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:10,612 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:10,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-06 08:36:10,839 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-04-06 08:36:10,839 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:10,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:10,840 INFO L85 PathProgramCache]: Analyzing trace with hash 223476135, now seen corresponding path program 1 times [2022-04-06 08:36:10,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:10,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453142624] [2022-04-06 08:36:10,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:10,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:10,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:10,905 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-04-06 08:36:10,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:10,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453142624] [2022-04-06 08:36:10,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453142624] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:36:10,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005259663] [2022-04-06 08:36:10,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:10,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:36:10,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:36:10,907 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 08:36:10,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-06 08:36:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:11,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-06 08:36:11,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:36:11,413 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-04-06 08:36:11,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:36:11,838 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-04-06 08:36:11,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005259663] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 08:36:11,838 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 08:36:11,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-04-06 08:36:11,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957005865] [2022-04-06 08:36:11,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-06 08:36:11,839 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-06 08:36:11,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:11,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-06 08:36:11,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-06 08:36:11,840 INFO L87 Difference]: Start difference. First operand 6945 states and 9074 transitions. Second operand has 7 states, 7 states have (on average 30.571428571428573) internal successors, (214), 6 states have internal predecessors, (214), 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) [2022-04-06 08:36:12,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:12,591 INFO L93 Difference]: Finished difference Result 11485 states and 14935 transitions. [2022-04-06 08:36:12,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-06 08:36:12,592 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.571428571428573) internal successors, (214), 6 states have internal predecessors, (214), 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 298 [2022-04-06 08:36:12,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:12,614 INFO L225 Difference]: With dead ends: 11485 [2022-04-06 08:36:12,614 INFO L226 Difference]: Without dead ends: 11429 [2022-04-06 08:36:12,614 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 601 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-04-06 08:36:12,615 INFO L913 BasicCegarLoop]: 369 mSDtfsCounter, 489 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:12,616 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 386 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-06 08:36:12,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11429 states. [2022-04-06 08:36:12,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11429 to 9779. [2022-04-06 08:36:12,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9779 states, 9774 states have (on average 1.326989973398813) internal successors, (12970), 9774 states have internal predecessors, (12970), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:12,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9779 states to 9779 states and 12974 transitions. [2022-04-06 08:36:12,791 INFO L78 Accepts]: Start accepts. Automaton has 9779 states and 12974 transitions. Word has length 298 [2022-04-06 08:36:12,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:12,791 INFO L478 AbstractCegarLoop]: Abstraction has 9779 states and 12974 transitions. [2022-04-06 08:36:12,791 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.571428571428573) internal successors, (214), 6 states have internal predecessors, (214), 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) [2022-04-06 08:36:12,791 INFO L276 IsEmpty]: Start isEmpty. Operand 9779 states and 12974 transitions. [2022-04-06 08:36:12,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-04-06 08:36:12,806 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:12,807 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:12,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-06 08:36:13,023 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-04-06 08:36:13,024 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:13,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:13,024 INFO L85 PathProgramCache]: Analyzing trace with hash 11559004, now seen corresponding path program 2 times [2022-04-06 08:36:13,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:13,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092836438] [2022-04-06 08:36:13,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:13,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:13,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:13,086 INFO L134 CoverageAnalysis]: Checked inductivity of 981 backedges. 407 proven. 5 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-04-06 08:36:13,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:13,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092836438] [2022-04-06 08:36:13,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092836438] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:36:13,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461987580] [2022-04-06 08:36:13,087 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-06 08:36:13,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:36:13,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:36:13,088 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) [2022-04-06 08:36:13,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-06 08:36:13,240 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-06 08:36:13,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 08:36:13,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-06 08:36:13,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:36:13,665 INFO L134 CoverageAnalysis]: Checked inductivity of 981 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2022-04-06 08:36:13,666 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-06 08:36:13,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461987580] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:13,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-06 08:36:13,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-04-06 08:36:13,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515771401] [2022-04-06 08:36:13,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:13,667 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-06 08:36:13,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:13,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-06 08:36:13,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:36:13,667 INFO L87 Difference]: Start difference. First operand 9779 states and 12974 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:13,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:13,768 INFO L93 Difference]: Finished difference Result 7090 states and 9104 transitions. [2022-04-06 08:36:13,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-06 08:36:13,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 311 [2022-04-06 08:36:13,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:13,782 INFO L225 Difference]: With dead ends: 7090 [2022-04-06 08:36:13,782 INFO L226 Difference]: Without dead ends: 7090 [2022-04-06 08:36:13,782 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:36:13,783 INFO L913 BasicCegarLoop]: 170 mSDtfsCounter, 13 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:13,783 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 257 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-06 08:36:13,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7090 states. [2022-04-06 08:36:13,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7090 to 7050. [2022-04-06 08:36:13,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7050 states, 7045 states have (on average 1.2848828956706884) internal successors, (9052), 7045 states have internal predecessors, (9052), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:13,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7050 states to 7050 states and 9056 transitions. [2022-04-06 08:36:13,880 INFO L78 Accepts]: Start accepts. Automaton has 7050 states and 9056 transitions. Word has length 311 [2022-04-06 08:36:13,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:13,880 INFO L478 AbstractCegarLoop]: Abstraction has 7050 states and 9056 transitions. [2022-04-06 08:36:13,881 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:13,881 INFO L276 IsEmpty]: Start isEmpty. Operand 7050 states and 9056 transitions. [2022-04-06 08:36:13,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2022-04-06 08:36:13,889 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:13,889 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:13,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-06 08:36:14,099 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:36:14,100 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:14,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:14,100 INFO L85 PathProgramCache]: Analyzing trace with hash 250389521, now seen corresponding path program 1 times [2022-04-06 08:36:14,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:14,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813023890] [2022-04-06 08:36:14,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:14,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:14,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:14,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 954 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-04-06 08:36:14,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:14,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813023890] [2022-04-06 08:36:14,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813023890] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:36:14,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003046660] [2022-04-06 08:36:14,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:14,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:36:14,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:36:14,182 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) [2022-04-06 08:36:14,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-06 08:36:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:14,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-06 08:36:14,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:36:15,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 821 proven. 0 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2022-04-06 08:36:15,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-06 08:36:15,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003046660] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:15,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-06 08:36:15,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-04-06 08:36:15,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959057015] [2022-04-06 08:36:15,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:15,006 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-06 08:36:15,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:15,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-06 08:36:15,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:36:15,007 INFO L87 Difference]: Start difference. First operand 7050 states and 9056 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:15,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:15,047 INFO L93 Difference]: Finished difference Result 9083 states and 11629 transitions. [2022-04-06 08:36:15,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-06 08:36:15,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 378 [2022-04-06 08:36:15,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:15,066 INFO L225 Difference]: With dead ends: 9083 [2022-04-06 08:36:15,066 INFO L226 Difference]: Without dead ends: 9083 [2022-04-06 08:36:15,066 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:36:15,067 INFO L913 BasicCegarLoop]: 321 mSDtfsCounter, 61 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:15,067 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 484 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-06 08:36:15,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9083 states. [2022-04-06 08:36:15,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9083 to 9083. [2022-04-06 08:36:15,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9083 states, 9078 states have (on average 1.2805684071381362) internal successors, (11625), 9078 states have internal predecessors, (11625), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:15,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9083 states to 9083 states and 11629 transitions. [2022-04-06 08:36:15,195 INFO L78 Accepts]: Start accepts. Automaton has 9083 states and 11629 transitions. Word has length 378 [2022-04-06 08:36:15,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:15,196 INFO L478 AbstractCegarLoop]: Abstraction has 9083 states and 11629 transitions. [2022-04-06 08:36:15,196 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:15,196 INFO L276 IsEmpty]: Start isEmpty. Operand 9083 states and 11629 transitions. [2022-04-06 08:36:15,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-04-06 08:36:15,204 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:15,204 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:15,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-06 08:36:15,429 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:36:15,430 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:15,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:15,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1147203163, now seen corresponding path program 1 times [2022-04-06 08:36:15,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:15,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209512805] [2022-04-06 08:36:15,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:15,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:15,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:15,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-04-06 08:36:15,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:15,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209512805] [2022-04-06 08:36:15,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209512805] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:36:15,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448112710] [2022-04-06 08:36:15,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:15,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:36:15,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:36:15,510 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) [2022-04-06 08:36:15,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-06 08:36:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:15,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-06 08:36:15,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:36:16,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-04-06 08:36:16,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:36:16,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-04-06 08:36:16,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448112710] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 08:36:16,589 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 08:36:16,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-04-06 08:36:16,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742476090] [2022-04-06 08:36:16,589 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-06 08:36:16,590 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-06 08:36:16,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:16,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-06 08:36:16,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-06 08:36:16,590 INFO L87 Difference]: Start difference. First operand 9083 states and 11629 transitions. Second operand has 7 states, 7 states have (on average 33.57142857142857) internal successors, (235), 6 states have internal predecessors, (235), 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) [2022-04-06 08:36:17,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:17,011 INFO L93 Difference]: Finished difference Result 10670 states and 13478 transitions. [2022-04-06 08:36:17,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-06 08:36:17,011 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.57142857142857) internal successors, (235), 6 states have internal predecessors, (235), 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 380 [2022-04-06 08:36:17,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:17,032 INFO L225 Difference]: With dead ends: 10670 [2022-04-06 08:36:17,033 INFO L226 Difference]: Without dead ends: 10662 [2022-04-06 08:36:17,033 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 770 GetRequests, 762 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-04-06 08:36:17,034 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 604 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:17,034 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [604 Valid, 222 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-06 08:36:17,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10662 states. [2022-04-06 08:36:17,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10662 to 9623. [2022-04-06 08:36:17,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9623 states, 9618 states have (on average 1.2763568309419837) internal successors, (12276), 9618 states have internal predecessors, (12276), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:17,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9623 states to 9623 states and 12280 transitions. [2022-04-06 08:36:17,176 INFO L78 Accepts]: Start accepts. Automaton has 9623 states and 12280 transitions. Word has length 380 [2022-04-06 08:36:17,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:17,176 INFO L478 AbstractCegarLoop]: Abstraction has 9623 states and 12280 transitions. [2022-04-06 08:36:17,177 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.57142857142857) internal successors, (235), 6 states have internal predecessors, (235), 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) [2022-04-06 08:36:17,177 INFO L276 IsEmpty]: Start isEmpty. Operand 9623 states and 12280 transitions. [2022-04-06 08:36:17,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-04-06 08:36:17,187 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:17,187 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:17,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-04-06 08:36:17,407 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-04-06 08:36:17,407 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:17,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:17,408 INFO L85 PathProgramCache]: Analyzing trace with hash 742900883, now seen corresponding path program 1 times [2022-04-06 08:36:17,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:17,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828691115] [2022-04-06 08:36:17,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:17,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:17,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:17,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1971 backedges. 886 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2022-04-06 08:36:17,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:17,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828691115] [2022-04-06 08:36:17,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828691115] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:36:17,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:36:17,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:36:17,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959665256] [2022-04-06 08:36:17,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:36:17,525 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:36:17,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:17,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:36:17,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:36:17,526 INFO L87 Difference]: Start difference. First operand 9623 states and 12280 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:17,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:17,713 INFO L93 Difference]: Finished difference Result 7390 states and 9006 transitions. [2022-04-06 08:36:17,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:36:17,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 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 419 [2022-04-06 08:36:17,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:17,721 INFO L225 Difference]: With dead ends: 7390 [2022-04-06 08:36:17,722 INFO L226 Difference]: Without dead ends: 3828 [2022-04-06 08:36:17,722 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:36:17,722 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 208 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:17,723 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 191 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-06 08:36:17,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3828 states. [2022-04-06 08:36:17,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3828 to 3684. [2022-04-06 08:36:17,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3684 states, 3679 states have (on average 1.259853220983963) internal successors, (4635), 3679 states have internal predecessors, (4635), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:17,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3684 states to 3684 states and 4639 transitions. [2022-04-06 08:36:17,765 INFO L78 Accepts]: Start accepts. Automaton has 3684 states and 4639 transitions. Word has length 419 [2022-04-06 08:36:17,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:17,765 INFO L478 AbstractCegarLoop]: Abstraction has 3684 states and 4639 transitions. [2022-04-06 08:36:17,765 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:36:17,765 INFO L276 IsEmpty]: Start isEmpty. Operand 3684 states and 4639 transitions. [2022-04-06 08:36:17,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2022-04-06 08:36:17,770 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:36:17,770 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:36:17,771 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-06 08:36:17,771 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:36:17,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:36:17,771 INFO L85 PathProgramCache]: Analyzing trace with hash -847208518, now seen corresponding path program 1 times [2022-04-06 08:36:17,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:36:17,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46582375] [2022-04-06 08:36:17,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:17,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:36:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:17,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:36:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:17,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2022-04-06 08:36:17,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:36:17,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46582375] [2022-04-06 08:36:17,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46582375] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:36:17,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015344353] [2022-04-06 08:36:17,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:36:17,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:36:17,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:36:17,847 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 08:36:17,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-06 08:36:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:36:17,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-06 08:36:17,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:36:18,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2022-04-06 08:36:18,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:36:19,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2022-04-06 08:36:19,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015344353] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 08:36:19,019 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 08:36:19,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-04-06 08:36:19,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979337464] [2022-04-06 08:36:19,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-06 08:36:19,035 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-06 08:36:19,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:36:19,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-06 08:36:19,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-04-06 08:36:19,036 INFO L87 Difference]: Start difference. First operand 3684 states and 4639 transitions. Second operand has 9 states, 9 states have (on average 35.55555555555556) internal successors, (320), 8 states have internal predecessors, (320), 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) [2022-04-06 08:36:19,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:36:19,366 INFO L93 Difference]: Finished difference Result 290 states and 337 transitions. [2022-04-06 08:36:19,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-06 08:36:19,366 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 35.55555555555556) internal successors, (320), 8 states have internal predecessors, (320), 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 448 [2022-04-06 08:36:19,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:36:19,367 INFO L225 Difference]: With dead ends: 290 [2022-04-06 08:36:19,367 INFO L226 Difference]: Without dead ends: 0 [2022-04-06 08:36:19,367 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 907 GetRequests, 897 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-04-06 08:36:19,367 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 263 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:36:19,368 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 151 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-06 08:36:19,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-06 08:36:19,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-06 08:36:19,368 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) [2022-04-06 08:36:19,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-06 08:36:19,368 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 448 [2022-04-06 08:36:19,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:36:19,369 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-06 08:36:19,369 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 35.55555555555556) internal successors, (320), 8 states have internal predecessors, (320), 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) [2022-04-06 08:36:19,369 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-06 08:36:19,369 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-06 08:36:19,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-06 08:36:19,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-04-06 08:36:19,597 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-04-06 08:36:19,600 INFO L719 BasicCegarLoop]: Path program histogram: [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] [2022-04-06 08:36:19,601 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-06 08:36:19,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 08:36:19 BasicIcfg [2022-04-06 08:36:19,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-06 08:36:19,604 INFO L158 Benchmark]: Toolchain (without parser) took 17995.24ms. Allocated memory was 173.0MB in the beginning and 381.7MB in the end (delta: 208.7MB). Free memory was 121.8MB in the beginning and 320.0MB in the end (delta: -198.3MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. [2022-04-06 08:36:19,604 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 173.0MB. Free memory is still 138.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-06 08:36:19,604 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.89ms. Allocated memory was 173.0MB in the beginning and 207.6MB in the end (delta: 34.6MB). Free memory was 121.6MB in the beginning and 180.4MB in the end (delta: -58.8MB). Peak memory consumption was 16.4MB. Max. memory is 8.0GB. [2022-04-06 08:36:19,604 INFO L158 Benchmark]: Boogie Preprocessor took 43.64ms. Allocated memory is still 207.6MB. Free memory was 180.4MB in the beginning and 177.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-04-06 08:36:19,604 INFO L158 Benchmark]: RCFGBuilder took 588.46ms. Allocated memory is still 207.6MB. Free memory was 177.8MB in the beginning and 152.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2022-04-06 08:36:19,605 INFO L158 Benchmark]: IcfgTransformer took 31.94ms. Allocated memory is still 207.6MB. Free memory was 152.6MB in the beginning and 149.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-04-06 08:36:19,605 INFO L158 Benchmark]: TraceAbstraction took 17019.22ms. Allocated memory was 207.6MB in the beginning and 381.7MB in the end (delta: 174.1MB). Free memory was 149.0MB in the beginning and 320.0MB in the end (delta: -171.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-04-06 08:36:19,606 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 173.0MB. Free memory is still 138.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 306.89ms. Allocated memory was 173.0MB in the beginning and 207.6MB in the end (delta: 34.6MB). Free memory was 121.6MB in the beginning and 180.4MB in the end (delta: -58.8MB). Peak memory consumption was 16.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.64ms. Allocated memory is still 207.6MB. Free memory was 180.4MB in the beginning and 177.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 588.46ms. Allocated memory is still 207.6MB. Free memory was 177.8MB in the beginning and 152.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * IcfgTransformer took 31.94ms. Allocated memory is still 207.6MB. Free memory was 152.6MB in the beginning and 149.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 17019.22ms. Allocated memory was 207.6MB in the beginning and 381.7MB in the end (delta: 174.1MB). Free memory was 149.0MB in the beginning and 320.0MB in the end (delta: -171.1MB). Peak memory consumption was 4.2MB. 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: 554]: 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, 136 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.0s, OverallIterations: 27, TraceHistogramMax: 18, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6826 SdHoareTripleChecker+Valid, 5.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6824 mSDsluCounter, 6198 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 544 mSDsCounter, 607 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6190 IncrementalHoareTripleChecker+Invalid, 6797 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 607 mSolverCounterUnsat, 5654 mSDtfsCounter, 6190 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3424 GetRequests, 3319 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9779occurred in iteration=22, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 27 MinimizatonAttempts, 3601 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 7540 NumberOfCodeBlocks, 7540 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 8630 ConstructedInterpolants, 0 QuantifiedInterpolants, 12805 SizeOfPredicates, 5 NumberOfNonLiveVariables, 4257 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 36 InterpolantComputations, 24 PerfectInterpolantSequences, 28794/28933 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! [2022-04-06 08:36:19,642 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...