/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_8.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-23 19:55:01,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-23 19:55:01,200 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-23 19:55:01,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-23 19:55:01,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-23 19:55:01,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-23 19:55:01,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-23 19:55:01,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-23 19:55:01,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-23 19:55:01,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-23 19:55:01,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-23 19:55:01,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-23 19:55:01,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-23 19:55:01,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-23 19:55:01,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-23 19:55:01,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-23 19:55:01,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-23 19:55:01,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-23 19:55:01,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-23 19:55:01,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-23 19:55:01,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-23 19:55:01,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-23 19:55:01,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-23 19:55:01,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-23 19:55:01,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-23 19:55:01,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-23 19:55:01,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-23 19:55:01,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-23 19:55:01,300 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-23 19:55:01,307 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-23 19:55:01,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-23 19:55:01,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-23 19:55:01,309 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-23 19:55:01,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-23 19:55:01,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-23 19:55:01,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-23 19:55:01,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-23 19:55:01,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-23 19:55:01,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-23 19:55:01,310 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-23 19:55:01,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-23 19:55:01,310 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-23 19:55:01,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-23 19:55:01,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-23 19:55:01,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-23 19:55:01,311 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-23 19:55:01,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-23 19:55:01,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 19:55:01,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-23 19:55:01,312 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-23 19:55:01,312 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-23 19:55:01,313 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-23 19:55:01,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-23 19:55:01,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-23 19:55:01,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-23 19:55:01,529 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-23 19:55:01,532 INFO L275 PluginConnector]: CDTParser initialized [2022-02-23 19:55:01,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_8.cil.c [2022-02-23 19:55:01,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71863226a/7a35c21300b7435cb9b54cdb8c723647/FLAGc3b841e15 [2022-02-23 19:55:01,979 INFO L306 CDTParser]: Found 1 translation units. [2022-02-23 19:55:01,980 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_8.cil.c [2022-02-23 19:55:01,992 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71863226a/7a35c21300b7435cb9b54cdb8c723647/FLAGc3b841e15 [2022-02-23 19:55:02,010 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71863226a/7a35c21300b7435cb9b54cdb8c723647 [2022-02-23 19:55:02,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-23 19:55:02,016 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-23 19:55:02,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-23 19:55:02,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-23 19:55:02,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-23 19:55:02,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:55:02" (1/1) ... [2022-02-23 19:55:02,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb6436b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:55:02, skipping insertion in model container [2022-02-23 19:55:02,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:55:02" (1/1) ... [2022-02-23 19:55:02,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-23 19:55:02,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-23 19:55:02,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_8.cil.c[44970,44983] [2022-02-23 19:55:02,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 19:55:02,347 INFO L203 MainTranslator]: Completed pre-run [2022-02-23 19:55:02,418 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_8.cil.c[44970,44983] [2022-02-23 19:55:02,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 19:55:02,429 INFO L208 MainTranslator]: Completed translation [2022-02-23 19:55:02,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:55:02 WrapperNode [2022-02-23 19:55:02,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-23 19:55:02,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-23 19:55:02,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-23 19:55:02,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-23 19:55:02,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:55:02" (1/1) ... [2022-02-23 19:55:02,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:55:02" (1/1) ... [2022-02-23 19:55:02,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:55:02" (1/1) ... [2022-02-23 19:55:02,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:55:02" (1/1) ... [2022-02-23 19:55:02,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:55:02" (1/1) ... [2022-02-23 19:55:02,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:55:02" (1/1) ... [2022-02-23 19:55:02,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:55:02" (1/1) ... [2022-02-23 19:55:02,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-23 19:55:02,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-23 19:55:02,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-23 19:55:02,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-23 19:55:02,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:55:02" (1/1) ... [2022-02-23 19:55:02,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 19:55:02,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:55:02,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-23 19:55:02,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-23 19:55:02,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-23 19:55:02,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-23 19:55:02,539 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-23 19:55:02,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-23 19:55:02,539 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-23 19:55:02,539 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-23 19:55:02,539 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-23 19:55:02,539 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-23 19:55:02,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-23 19:55:02,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-23 19:55:02,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-23 19:55:02,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-23 19:55:02,540 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-23 19:55:02,540 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-23 19:55:02,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-23 19:55:02,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-23 19:55:02,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-23 19:55:02,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-23 19:55:02,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-23 19:55:02,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-23 19:55:02,634 INFO L234 CfgBuilder]: Building ICFG [2022-02-23 19:55:02,636 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-23 19:55:02,715 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 19:55:03,045 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-02-23 19:55:03,045 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-02-23 19:55:03,052 INFO L275 CfgBuilder]: Performing block encoding [2022-02-23 19:55:03,063 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-23 19:55:03,063 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-23 19:55:03,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:55:03 BoogieIcfgContainer [2022-02-23 19:55:03,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-23 19:55:03,065 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-23 19:55:03,066 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-23 19:55:03,067 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-23 19:55:03,070 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:55:03" (1/1) ... [2022-02-23 19:55:03,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 07:55:03 BasicIcfg [2022-02-23 19:55:03,112 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-23 19:55:03,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-23 19:55:03,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-23 19:55:03,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-23 19:55:03,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 07:55:02" (1/4) ... [2022-02-23 19:55:03,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34625571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:55:03, skipping insertion in model container [2022-02-23 19:55:03,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:55:02" (2/4) ... [2022-02-23 19:55:03,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34625571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:55:03, skipping insertion in model container [2022-02-23 19:55:03,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:55:03" (3/4) ... [2022-02-23 19:55:03,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34625571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 07:55:03, skipping insertion in model container [2022-02-23 19:55:03,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 07:55:03" (4/4) ... [2022-02-23 19:55:03,121 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_8.cil.cJordan [2022-02-23 19:55:03,127 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-23 19:55:03,127 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-23 19:55:03,178 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-23 19:55:03,186 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-23 19:55:03,187 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-23 19:55:03,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 148 states have (on average 1.722972972972973) internal successors, (255), 149 states have internal predecessors, (255), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-23 19:55:03,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-02-23 19:55:03,226 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:03,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:55:03,226 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:03,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:03,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1186597234, now seen corresponding path program 1 times [2022-02-23 19:55:03,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:03,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210332698] [2022-02-23 19:55:03,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:03,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:03,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:03,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:55:03,507 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:03,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210332698] [2022-02-23 19:55:03,508 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210332698] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:03,508 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:55:03,508 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:55:03,510 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725702530] [2022-02-23 19:55:03,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:03,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:55:03,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:03,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:55:03,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:55:03,545 INFO L87 Difference]: Start difference. First operand has 156 states, 148 states have (on average 1.722972972972973) internal successors, (255), 149 states have internal predecessors, (255), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:03,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:03,914 INFO L93 Difference]: Finished difference Result 290 states and 479 transitions. [2022-02-23 19:55:03,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:55:03,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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 48 [2022-02-23 19:55:03,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:03,938 INFO L225 Difference]: With dead ends: 290 [2022-02-23 19:55:03,938 INFO L226 Difference]: Without dead ends: 263 [2022-02-23 19:55:03,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:55:03,943 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 660 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:03,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [662 Valid, 255 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-23 19:55:03,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2022-02-23 19:55:04,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2022-02-23 19:55:04,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 258 states have (on average 1.5232558139534884) internal successors, (393), 258 states have internal predecessors, (393), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:04,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 397 transitions. [2022-02-23 19:55:04,009 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 397 transitions. Word has length 48 [2022-02-23 19:55:04,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:04,010 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 397 transitions. [2022-02-23 19:55:04,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:04,011 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 397 transitions. [2022-02-23 19:55:04,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-23 19:55:04,019 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:04,019 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:55:04,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-23 19:55:04,020 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:04,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:04,022 INFO L85 PathProgramCache]: Analyzing trace with hash 784259584, now seen corresponding path program 1 times [2022-02-23 19:55:04,022 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:04,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189514978] [2022-02-23 19:55:04,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:04,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:04,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:04,174 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:55:04,175 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:04,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189514978] [2022-02-23 19:55:04,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189514978] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:04,175 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:55:04,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:55:04,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843739908] [2022-02-23 19:55:04,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:04,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:55:04,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:04,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:55:04,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:55:04,179 INFO L87 Difference]: Start difference. First operand 263 states and 397 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:04,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:04,427 INFO L93 Difference]: Finished difference Result 292 states and 434 transitions. [2022-02-23 19:55:04,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:55:04,427 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-02-23 19:55:04,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:04,429 INFO L225 Difference]: With dead ends: 292 [2022-02-23 19:55:04,429 INFO L226 Difference]: Without dead ends: 292 [2022-02-23 19:55:04,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:55:04,430 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 227 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:04,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 232 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:55:04,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-02-23 19:55:04,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 284. [2022-02-23 19:55:04,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 279 states have (on average 1.5017921146953406) internal successors, (419), 279 states have internal predecessors, (419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:04,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 423 transitions. [2022-02-23 19:55:04,441 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 423 transitions. Word has length 64 [2022-02-23 19:55:04,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:04,441 INFO L470 AbstractCegarLoop]: Abstraction has 284 states and 423 transitions. [2022-02-23 19:55:04,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:04,442 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 423 transitions. [2022-02-23 19:55:04,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-23 19:55:04,443 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:04,443 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:55:04,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-23 19:55:04,444 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:04,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:04,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1949677792, now seen corresponding path program 1 times [2022-02-23 19:55:04,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:04,444 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847734723] [2022-02-23 19:55:04,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:04,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:04,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:04,529 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 19:55:04,529 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:04,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847734723] [2022-02-23 19:55:04,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847734723] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:04,530 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:55:04,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:55:04,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448757790] [2022-02-23 19:55:04,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:04,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:55:04,531 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:04,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:55:04,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:55:04,532 INFO L87 Difference]: Start difference. First operand 284 states and 423 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:04,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:04,787 INFO L93 Difference]: Finished difference Result 394 states and 561 transitions. [2022-02-23 19:55:04,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:55:04,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-02-23 19:55:04,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:04,789 INFO L225 Difference]: With dead ends: 394 [2022-02-23 19:55:04,789 INFO L226 Difference]: Without dead ends: 394 [2022-02-23 19:55:04,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:55:04,790 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 264 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:04,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 231 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:55:04,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-02-23 19:55:04,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 366. [2022-02-23 19:55:04,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 361 states have (on average 1.4321329639889198) internal successors, (517), 361 states have internal predecessors, (517), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:04,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 521 transitions. [2022-02-23 19:55:04,801 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 521 transitions. Word has length 85 [2022-02-23 19:55:04,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:04,802 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 521 transitions. [2022-02-23 19:55:04,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:04,802 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 521 transitions. [2022-02-23 19:55:04,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-23 19:55:04,803 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:04,803 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:55:04,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-23 19:55:04,804 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:04,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:04,804 INFO L85 PathProgramCache]: Analyzing trace with hash -883709505, now seen corresponding path program 1 times [2022-02-23 19:55:04,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:04,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996370566] [2022-02-23 19:55:04,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:04,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:04,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:04,858 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 19:55:04,858 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:04,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996370566] [2022-02-23 19:55:04,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996370566] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:04,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:55:04,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:55:04,859 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652229366] [2022-02-23 19:55:04,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:04,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:55:04,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:04,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:55:04,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:55:04,860 INFO L87 Difference]: Start difference. First operand 366 states and 521 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:05,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:05,085 INFO L93 Difference]: Finished difference Result 420 states and 587 transitions. [2022-02-23 19:55:05,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:55:05,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-02-23 19:55:05,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:05,088 INFO L225 Difference]: With dead ends: 420 [2022-02-23 19:55:05,088 INFO L226 Difference]: Without dead ends: 420 [2022-02-23 19:55:05,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:55:05,089 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 226 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:05,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 233 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:55:05,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-02-23 19:55:05,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 412. [2022-02-23 19:55:05,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 407 states have (on average 1.4078624078624078) internal successors, (573), 407 states have internal predecessors, (573), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:05,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 577 transitions. [2022-02-23 19:55:05,099 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 577 transitions. Word has length 85 [2022-02-23 19:55:05,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:05,100 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 577 transitions. [2022-02-23 19:55:05,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:05,100 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 577 transitions. [2022-02-23 19:55:05,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-23 19:55:05,101 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:05,101 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-23 19:55:05,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-23 19:55:05,102 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:05,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:05,102 INFO L85 PathProgramCache]: Analyzing trace with hash 779145481, now seen corresponding path program 1 times [2022-02-23 19:55:05,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:05,103 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905128301] [2022-02-23 19:55:05,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:05,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:05,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:05,171 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 19:55:05,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:05,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905128301] [2022-02-23 19:55:05,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905128301] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:05,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:55:05,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:55:05,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976295794] [2022-02-23 19:55:05,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:05,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:55:05,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:05,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:55:05,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:55:05,175 INFO L87 Difference]: Start difference. First operand 412 states and 577 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:05,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:05,404 INFO L93 Difference]: Finished difference Result 608 states and 854 transitions. [2022-02-23 19:55:05,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:55:05,404 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-02-23 19:55:05,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:05,408 INFO L225 Difference]: With dead ends: 608 [2022-02-23 19:55:05,409 INFO L226 Difference]: Without dead ends: 602 [2022-02-23 19:55:05,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:55:05,413 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 352 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:05,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 231 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:55:05,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-02-23 19:55:05,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 588. [2022-02-23 19:55:05,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 583 states have (on average 1.41852487135506) internal successors, (827), 583 states have internal predecessors, (827), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:05,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 831 transitions. [2022-02-23 19:55:05,433 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 831 transitions. Word has length 98 [2022-02-23 19:55:05,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:05,434 INFO L470 AbstractCegarLoop]: Abstraction has 588 states and 831 transitions. [2022-02-23 19:55:05,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:05,435 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 831 transitions. [2022-02-23 19:55:05,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-02-23 19:55:05,440 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:05,441 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:55:05,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-23 19:55:05,442 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:05,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:05,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1541749664, now seen corresponding path program 1 times [2022-02-23 19:55:05,443 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:05,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137913522] [2022-02-23 19:55:05,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:05,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:05,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:05,533 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 19:55:05,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:05,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137913522] [2022-02-23 19:55:05,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137913522] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:05,534 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:55:05,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:55:05,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041699241] [2022-02-23 19:55:05,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:05,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:55:05,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:05,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:55:05,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:55:05,536 INFO L87 Difference]: Start difference. First operand 588 states and 831 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:05,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:05,740 INFO L93 Difference]: Finished difference Result 664 states and 933 transitions. [2022-02-23 19:55:05,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:55:05,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2022-02-23 19:55:05,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:05,745 INFO L225 Difference]: With dead ends: 664 [2022-02-23 19:55:05,745 INFO L226 Difference]: Without dead ends: 664 [2022-02-23 19:55:05,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:55:05,747 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 258 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:05,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 232 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:55:05,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2022-02-23 19:55:05,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 638. [2022-02-23 19:55:05,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 633 states have (on average 1.401263823064771) internal successors, (887), 633 states have internal predecessors, (887), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:05,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 891 transitions. [2022-02-23 19:55:05,762 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 891 transitions. Word has length 106 [2022-02-23 19:55:05,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:05,762 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 891 transitions. [2022-02-23 19:55:05,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:05,763 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 891 transitions. [2022-02-23 19:55:05,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-23 19:55:05,764 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:05,765 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:55:05,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-23 19:55:05,765 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:05,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:05,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1480032937, now seen corresponding path program 1 times [2022-02-23 19:55:05,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:05,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147903368] [2022-02-23 19:55:05,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:05,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:05,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:05,820 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-02-23 19:55:05,820 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:05,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147903368] [2022-02-23 19:55:05,820 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147903368] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:05,820 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:55:05,820 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:55:05,821 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668554050] [2022-02-23 19:55:05,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:05,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:55:05,821 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:05,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:55:05,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:55:05,822 INFO L87 Difference]: Start difference. First operand 638 states and 891 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:06,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:06,049 INFO L93 Difference]: Finished difference Result 708 states and 981 transitions. [2022-02-23 19:55:06,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:55:06,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 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 132 [2022-02-23 19:55:06,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:06,052 INFO L225 Difference]: With dead ends: 708 [2022-02-23 19:55:06,053 INFO L226 Difference]: Without dead ends: 708 [2022-02-23 19:55:06,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:55:06,053 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 239 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:06,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 232 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:55:06,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2022-02-23 19:55:06,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 692. [2022-02-23 19:55:06,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 687 states have (on average 1.3842794759825328) internal successors, (951), 687 states have internal predecessors, (951), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:06,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 955 transitions. [2022-02-23 19:55:06,066 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 955 transitions. Word has length 132 [2022-02-23 19:55:06,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:06,067 INFO L470 AbstractCegarLoop]: Abstraction has 692 states and 955 transitions. [2022-02-23 19:55:06,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 955 transitions. [2022-02-23 19:55:06,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-02-23 19:55:06,070 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:06,070 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-02-23 19:55:06,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-23 19:55:06,071 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:06,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:06,071 INFO L85 PathProgramCache]: Analyzing trace with hash -731592814, now seen corresponding path program 1 times [2022-02-23 19:55:06,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:06,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381298040] [2022-02-23 19:55:06,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:06,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:06,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:06,114 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 19:55:06,114 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:06,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381298040] [2022-02-23 19:55:06,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381298040] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:06,115 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:55:06,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:55:06,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012755119] [2022-02-23 19:55:06,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:06,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:55:06,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:06,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:55:06,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:55:06,116 INFO L87 Difference]: Start difference. First operand 692 states and 955 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:06,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:06,308 INFO L93 Difference]: Finished difference Result 712 states and 976 transitions. [2022-02-23 19:55:06,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:55:06,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 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 138 [2022-02-23 19:55:06,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:06,312 INFO L225 Difference]: With dead ends: 712 [2022-02-23 19:55:06,312 INFO L226 Difference]: Without dead ends: 710 [2022-02-23 19:55:06,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:55:06,312 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 359 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:06,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 231 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:55:06,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-02-23 19:55:06,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 698. [2022-02-23 19:55:06,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 693 states have (on average 1.378066378066378) internal successors, (955), 693 states have internal predecessors, (955), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:06,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 959 transitions. [2022-02-23 19:55:06,326 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 959 transitions. Word has length 138 [2022-02-23 19:55:06,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:06,327 INFO L470 AbstractCegarLoop]: Abstraction has 698 states and 959 transitions. [2022-02-23 19:55:06,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:06,327 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 959 transitions. [2022-02-23 19:55:06,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-02-23 19:55:06,329 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:06,329 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:55:06,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-23 19:55:06,330 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:06,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:06,330 INFO L85 PathProgramCache]: Analyzing trace with hash -538858338, now seen corresponding path program 1 times [2022-02-23 19:55:06,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:06,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408967342] [2022-02-23 19:55:06,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:06,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:06,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:06,378 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-02-23 19:55:06,378 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:06,378 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408967342] [2022-02-23 19:55:06,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408967342] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:06,378 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:55:06,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:55:06,379 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545023538] [2022-02-23 19:55:06,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:06,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:55:06,379 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:06,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:55:06,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:55:06,380 INFO L87 Difference]: Start difference. First operand 698 states and 959 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:06,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:06,617 INFO L93 Difference]: Finished difference Result 760 states and 1031 transitions. [2022-02-23 19:55:06,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:55:06,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-02-23 19:55:06,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:06,620 INFO L225 Difference]: With dead ends: 760 [2022-02-23 19:55:06,620 INFO L226 Difference]: Without dead ends: 760 [2022-02-23 19:55:06,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:55:06,621 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 220 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:06,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 232 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:55:06,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2022-02-23 19:55:06,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 756. [2022-02-23 19:55:06,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 751 states have (on average 1.3621837549933422) internal successors, (1023), 751 states have internal predecessors, (1023), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:06,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1027 transitions. [2022-02-23 19:55:06,632 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1027 transitions. Word has length 155 [2022-02-23 19:55:06,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:06,633 INFO L470 AbstractCegarLoop]: Abstraction has 756 states and 1027 transitions. [2022-02-23 19:55:06,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:06,633 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1027 transitions. [2022-02-23 19:55:06,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-02-23 19:55:06,635 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:06,635 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:55:06,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-23 19:55:06,635 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:06,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:06,636 INFO L85 PathProgramCache]: Analyzing trace with hash -647558084, now seen corresponding path program 1 times [2022-02-23 19:55:06,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:06,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028274340] [2022-02-23 19:55:06,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:06,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:06,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:06,684 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-02-23 19:55:06,684 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:06,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028274340] [2022-02-23 19:55:06,685 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028274340] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:06,685 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:55:06,685 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:55:06,685 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234114583] [2022-02-23 19:55:06,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:06,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:55:06,685 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:06,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:55:06,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:55:06,686 INFO L87 Difference]: Start difference. First operand 756 states and 1027 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:06,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:06,904 INFO L93 Difference]: Finished difference Result 818 states and 1099 transitions. [2022-02-23 19:55:06,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:55:06,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2022-02-23 19:55:06,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:06,908 INFO L225 Difference]: With dead ends: 818 [2022-02-23 19:55:06,908 INFO L226 Difference]: Without dead ends: 818 [2022-02-23 19:55:06,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:55:06,909 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 234 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:06,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 220 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:55:06,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2022-02-23 19:55:06,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2022-02-23 19:55:06,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 813 states have (on average 1.3468634686346863) internal successors, (1095), 813 states have internal predecessors, (1095), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:06,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1099 transitions. [2022-02-23 19:55:06,921 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1099 transitions. Word has length 160 [2022-02-23 19:55:06,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:06,922 INFO L470 AbstractCegarLoop]: Abstraction has 818 states and 1099 transitions. [2022-02-23 19:55:06,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:06,922 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1099 transitions. [2022-02-23 19:55:06,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-02-23 19:55:06,924 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:06,924 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 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] [2022-02-23 19:55:06,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-23 19:55:06,925 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:06,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:06,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1149825200, now seen corresponding path program 1 times [2022-02-23 19:55:06,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:06,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859913277] [2022-02-23 19:55:06,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:06,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:06,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:06,994 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 26 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-02-23 19:55:06,995 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:06,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859913277] [2022-02-23 19:55:06,995 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859913277] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:55:06,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476739456] [2022-02-23 19:55:06,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:06,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:55:06,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:55:07,000 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:55:07,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-23 19:55:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:07,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-23 19:55:07,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:55:07,584 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-02-23 19:55:07,585 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-23 19:55:07,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476739456] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:07,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-23 19:55:07,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-23 19:55:07,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074458195] [2022-02-23 19:55:07,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:07,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-23 19:55:07,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:07,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-23 19:55:07,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:55:07,586 INFO L87 Difference]: Start difference. First operand 818 states and 1099 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:07,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:07,638 INFO L93 Difference]: Finished difference Result 1230 states and 1650 transitions. [2022-02-23 19:55:07,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-23 19:55:07,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 188 [2022-02-23 19:55:07,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:07,642 INFO L225 Difference]: With dead ends: 1230 [2022-02-23 19:55:07,643 INFO L226 Difference]: Without dead ends: 1230 [2022-02-23 19:55:07,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:55:07,643 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 134 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:07,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 381 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-23 19:55:07,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2022-02-23 19:55:07,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1230. [2022-02-23 19:55:07,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 1225 states have (on average 1.343673469387755) internal successors, (1646), 1225 states have internal predecessors, (1646), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:07,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1650 transitions. [2022-02-23 19:55:07,681 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1650 transitions. Word has length 188 [2022-02-23 19:55:07,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:07,681 INFO L470 AbstractCegarLoop]: Abstraction has 1230 states and 1650 transitions. [2022-02-23 19:55:07,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:07,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1650 transitions. [2022-02-23 19:55:07,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-23 19:55:07,685 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:07,685 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:55:07,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-23 19:55:07,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-02-23 19:55:07,910 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:07,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:07,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1556839531, now seen corresponding path program 1 times [2022-02-23 19:55:07,911 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:07,911 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712567424] [2022-02-23 19:55:07,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:07,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:07,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:07,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:07,988 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-02-23 19:55:07,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:07,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712567424] [2022-02-23 19:55:07,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712567424] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:07,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:55:07,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:55:07,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288713221] [2022-02-23 19:55:07,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:07,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:55:07,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:07,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:55:07,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:55:07,991 INFO L87 Difference]: Start difference. First operand 1230 states and 1650 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:08,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:08,236 INFO L93 Difference]: Finished difference Result 1636 states and 2191 transitions. [2022-02-23 19:55:08,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:55:08,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 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 195 [2022-02-23 19:55:08,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:08,242 INFO L225 Difference]: With dead ends: 1636 [2022-02-23 19:55:08,242 INFO L226 Difference]: Without dead ends: 1636 [2022-02-23 19:55:08,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:55:08,243 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 345 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:08,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 389 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:55:08,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2022-02-23 19:55:08,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1636. [2022-02-23 19:55:08,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1631 states have (on average 1.3408951563458) internal successors, (2187), 1631 states have internal predecessors, (2187), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:08,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2191 transitions. [2022-02-23 19:55:08,276 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2191 transitions. Word has length 195 [2022-02-23 19:55:08,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:08,276 INFO L470 AbstractCegarLoop]: Abstraction has 1636 states and 2191 transitions. [2022-02-23 19:55:08,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:08,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2191 transitions. [2022-02-23 19:55:08,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-02-23 19:55:08,280 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:08,281 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:55:08,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-23 19:55:08,281 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:08,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:08,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1120597249, now seen corresponding path program 1 times [2022-02-23 19:55:08,282 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:08,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413344411] [2022-02-23 19:55:08,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:08,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:08,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:08,331 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-02-23 19:55:08,331 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:08,331 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413344411] [2022-02-23 19:55:08,331 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413344411] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:08,331 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:55:08,331 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:55:08,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160407528] [2022-02-23 19:55:08,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:08,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:55:08,332 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:08,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:55:08,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:55:08,333 INFO L87 Difference]: Start difference. First operand 1636 states and 2191 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:08,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:08,541 INFO L93 Difference]: Finished difference Result 1687 states and 2249 transitions. [2022-02-23 19:55:08,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:55:08,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-02-23 19:55:08,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:08,547 INFO L225 Difference]: With dead ends: 1687 [2022-02-23 19:55:08,547 INFO L226 Difference]: Without dead ends: 1687 [2022-02-23 19:55:08,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:55:08,548 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 225 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:08,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 274 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:55:08,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2022-02-23 19:55:08,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1687. [2022-02-23 19:55:08,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1682 states have (on average 1.334720570749108) internal successors, (2245), 1682 states have internal predecessors, (2245), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:08,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2249 transitions. [2022-02-23 19:55:08,582 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2249 transitions. Word has length 196 [2022-02-23 19:55:08,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:08,583 INFO L470 AbstractCegarLoop]: Abstraction has 1687 states and 2249 transitions. [2022-02-23 19:55:08,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:08,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2249 transitions. [2022-02-23 19:55:08,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-02-23 19:55:08,587 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:08,587 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:55:08,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-23 19:55:08,587 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:08,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:08,588 INFO L85 PathProgramCache]: Analyzing trace with hash 37095226, now seen corresponding path program 1 times [2022-02-23 19:55:08,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:08,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290655159] [2022-02-23 19:55:08,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:08,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:08,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:08,662 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2022-02-23 19:55:08,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:08,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290655159] [2022-02-23 19:55:08,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290655159] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:08,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:55:08,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:55:08,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451744052] [2022-02-23 19:55:08,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:08,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:55:08,664 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:08,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:55:08,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:55:08,664 INFO L87 Difference]: Start difference. First operand 1687 states and 2249 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:08,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:08,920 INFO L93 Difference]: Finished difference Result 1847 states and 2425 transitions. [2022-02-23 19:55:08,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:55:08,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 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 233 [2022-02-23 19:55:08,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:08,926 INFO L225 Difference]: With dead ends: 1847 [2022-02-23 19:55:08,926 INFO L226 Difference]: Without dead ends: 1680 [2022-02-23 19:55:08,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:55:08,928 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 220 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:08,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 232 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:55:08,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2022-02-23 19:55:08,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1680. [2022-02-23 19:55:08,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1680 states, 1675 states have (on average 1.3295522388059702) internal successors, (2227), 1675 states have internal predecessors, (2227), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:08,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2231 transitions. [2022-02-23 19:55:08,957 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2231 transitions. Word has length 233 [2022-02-23 19:55:08,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:08,958 INFO L470 AbstractCegarLoop]: Abstraction has 1680 states and 2231 transitions. [2022-02-23 19:55:08,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:08,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2231 transitions. [2022-02-23 19:55:08,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2022-02-23 19:55:08,964 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:08,964 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:55:08,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-23 19:55:08,964 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:08,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:08,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1753718484, now seen corresponding path program 1 times [2022-02-23 19:55:08,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:08,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855967427] [2022-02-23 19:55:08,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:08,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:09,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:09,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1088 backedges. 719 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-02-23 19:55:09,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:09,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855967427] [2022-02-23 19:55:09,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855967427] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:09,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:55:09,032 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:55:09,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102356320] [2022-02-23 19:55:09,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:09,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:55:09,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:09,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:55:09,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:55:09,033 INFO L87 Difference]: Start difference. First operand 1680 states and 2231 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:09,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:09,247 INFO L93 Difference]: Finished difference Result 3204 states and 4266 transitions. [2022-02-23 19:55:09,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:55:09,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 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 345 [2022-02-23 19:55:09,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:09,254 INFO L225 Difference]: With dead ends: 3204 [2022-02-23 19:55:09,254 INFO L226 Difference]: Without dead ends: 2022 [2022-02-23 19:55:09,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:55:09,255 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 345 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:09,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 397 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:55:09,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2022-02-23 19:55:09,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 2020. [2022-02-23 19:55:09,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2020 states, 2015 states have (on average 1.3330024813895782) internal successors, (2686), 2015 states have internal predecessors, (2686), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:09,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2020 states to 2020 states and 2690 transitions. [2022-02-23 19:55:09,291 INFO L78 Accepts]: Start accepts. Automaton has 2020 states and 2690 transitions. Word has length 345 [2022-02-23 19:55:09,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:09,291 INFO L470 AbstractCegarLoop]: Abstraction has 2020 states and 2690 transitions. [2022-02-23 19:55:09,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:09,291 INFO L276 IsEmpty]: Start isEmpty. Operand 2020 states and 2690 transitions. [2022-02-23 19:55:09,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2022-02-23 19:55:09,299 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:09,299 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-02-23 19:55:09,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-23 19:55:09,300 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:09,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:09,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1560614213, now seen corresponding path program 1 times [2022-02-23 19:55:09,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:09,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101211834] [2022-02-23 19:55:09,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:09,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:09,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:09,380 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1192 proven. 26 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-02-23 19:55:09,380 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:09,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101211834] [2022-02-23 19:55:09,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101211834] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:55:09,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507478962] [2022-02-23 19:55:09,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:09,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:55:09,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:55:09,382 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:55:09,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-23 19:55:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:09,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-23 19:55:09,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:55:10,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 582 proven. 0 refuted. 0 times theorem prover too weak. 1422 trivial. 0 not checked. [2022-02-23 19:55:10,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-23 19:55:10,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507478962] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:10,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-23 19:55:10,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-23 19:55:10,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135202547] [2022-02-23 19:55:10,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:10,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-23 19:55:10,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:10,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-23 19:55:10,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:55:10,107 INFO L87 Difference]: Start difference. First operand 2020 states and 2690 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:10,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:10,158 INFO L93 Difference]: Finished difference Result 2812 states and 3750 transitions. [2022-02-23 19:55:10,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-23 19:55:10,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 448 [2022-02-23 19:55:10,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:10,166 INFO L225 Difference]: With dead ends: 2812 [2022-02-23 19:55:10,166 INFO L226 Difference]: Without dead ends: 2429 [2022-02-23 19:55:10,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:55:10,167 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 149 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:10,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 370 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-23 19:55:10,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2022-02-23 19:55:10,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 2429. [2022-02-23 19:55:10,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2429 states, 2424 states have (on average 1.3333333333333333) internal successors, (3232), 2424 states have internal predecessors, (3232), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:10,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2429 states to 2429 states and 3236 transitions. [2022-02-23 19:55:10,209 INFO L78 Accepts]: Start accepts. Automaton has 2429 states and 3236 transitions. Word has length 448 [2022-02-23 19:55:10,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:10,210 INFO L470 AbstractCegarLoop]: Abstraction has 2429 states and 3236 transitions. [2022-02-23 19:55:10,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:10,210 INFO L276 IsEmpty]: Start isEmpty. Operand 2429 states and 3236 transitions. [2022-02-23 19:55:10,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2022-02-23 19:55:10,223 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:10,224 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-23 19:55:10,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-23 19:55:10,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-02-23 19:55:10,448 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:10,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:10,448 INFO L85 PathProgramCache]: Analyzing trace with hash 168081285, now seen corresponding path program 1 times [2022-02-23 19:55:10,448 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:10,448 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892645262] [2022-02-23 19:55:10,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:10,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:10,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:10,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1775 proven. 26 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2022-02-23 19:55:10,570 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:10,570 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892645262] [2022-02-23 19:55:10,570 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892645262] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:55:10,570 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305355607] [2022-02-23 19:55:10,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:10,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:55:10,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:55:10,571 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:55:10,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-23 19:55:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:10,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 980 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-23 19:55:10,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:55:11,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1179 proven. 0 refuted. 0 times theorem prover too weak. 2470 trivial. 0 not checked. [2022-02-23 19:55:11,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-23 19:55:11,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305355607] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:11,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-23 19:55:11,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-23 19:55:11,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18730282] [2022-02-23 19:55:11,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:11,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-23 19:55:11,604 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:11,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-23 19:55:11,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:55:11,604 INFO L87 Difference]: Start difference. First operand 2429 states and 3236 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:11,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:11,650 INFO L93 Difference]: Finished difference Result 3221 states and 4298 transitions. [2022-02-23 19:55:11,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-23 19:55:11,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 601 [2022-02-23 19:55:11,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:11,662 INFO L225 Difference]: With dead ends: 3221 [2022-02-23 19:55:11,662 INFO L226 Difference]: Without dead ends: 3217 [2022-02-23 19:55:11,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 602 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:55:11,663 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 138 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:11,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 368 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-23 19:55:11,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3217 states. [2022-02-23 19:55:11,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3217 to 3215. [2022-02-23 19:55:11,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3215 states, 3210 states have (on average 1.3348909657320873) internal successors, (4285), 3210 states have internal predecessors, (4285), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:11,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 4289 transitions. [2022-02-23 19:55:11,725 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 4289 transitions. Word has length 601 [2022-02-23 19:55:11,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:11,726 INFO L470 AbstractCegarLoop]: Abstraction has 3215 states and 4289 transitions. [2022-02-23 19:55:11,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:11,726 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 4289 transitions. [2022-02-23 19:55:11,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2022-02-23 19:55:11,740 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:11,741 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-23 19:55:11,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-23 19:55:11,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:55:11,963 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:11,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:11,964 INFO L85 PathProgramCache]: Analyzing trace with hash -786147610, now seen corresponding path program 1 times [2022-02-23 19:55:11,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:11,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849196250] [2022-02-23 19:55:11,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:11,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:12,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:12,096 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1775 proven. 26 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2022-02-23 19:55:12,096 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:12,096 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849196250] [2022-02-23 19:55:12,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849196250] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:55:12,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235912687] [2022-02-23 19:55:12,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:12,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:55:12,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:55:12,098 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:55:12,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-23 19:55:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:12,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-23 19:55:12,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:55:13,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1193 proven. 0 refuted. 0 times theorem prover too weak. 2456 trivial. 0 not checked. [2022-02-23 19:55:13,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-23 19:55:13,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235912687] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:13,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-23 19:55:13,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-23 19:55:13,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818025783] [2022-02-23 19:55:13,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:13,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-23 19:55:13,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:13,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-23 19:55:13,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:55:13,243 INFO L87 Difference]: Start difference. First operand 3215 states and 4289 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:13,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:13,266 INFO L93 Difference]: Finished difference Result 2803 states and 3743 transitions. [2022-02-23 19:55:13,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-23 19:55:13,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 601 [2022-02-23 19:55:13,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:13,277 INFO L225 Difference]: With dead ends: 2803 [2022-02-23 19:55:13,277 INFO L226 Difference]: Without dead ends: 2803 [2022-02-23 19:55:13,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 602 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:55:13,278 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 104 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:13,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 574 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-23 19:55:13,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2022-02-23 19:55:13,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2455. [2022-02-23 19:55:13,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2455 states, 2450 states have (on average 1.3342857142857143) internal successors, (3269), 2450 states have internal predecessors, (3269), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:13,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 3273 transitions. [2022-02-23 19:55:13,322 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 3273 transitions. Word has length 601 [2022-02-23 19:55:13,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:13,323 INFO L470 AbstractCegarLoop]: Abstraction has 2455 states and 3273 transitions. [2022-02-23 19:55:13,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:13,323 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 3273 transitions. [2022-02-23 19:55:13,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2022-02-23 19:55:13,329 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:13,330 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-23 19:55:13,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-23 19:55:13,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-02-23 19:55:13,543 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:13,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:13,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1838306117, now seen corresponding path program 1 times [2022-02-23 19:55:13,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:13,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973020365] [2022-02-23 19:55:13,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:13,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:13,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:13,683 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1775 proven. 26 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2022-02-23 19:55:13,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:13,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973020365] [2022-02-23 19:55:13,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973020365] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:55:13,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780844348] [2022-02-23 19:55:13,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:13,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:55:13,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:55:13,685 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 19:55:13,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-23 19:55:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:13,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-23 19:55:13,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:55:14,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1775 proven. 26 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2022-02-23 19:55:14,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 19:55:15,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1775 proven. 26 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2022-02-23 19:55:15,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780844348] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 19:55:15,572 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 19:55:15,573 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-02-23 19:55:15,573 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533469005] [2022-02-23 19:55:15,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 19:55:15,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-23 19:55:15,574 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:15,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-23 19:55:15,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-23 19:55:15,575 INFO L87 Difference]: Start difference. First operand 2455 states and 3273 transitions. Second operand has 7 states, 7 states have (on average 36.42857142857143) internal successors, (255), 6 states have internal predecessors, (255), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:16,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:16,232 INFO L93 Difference]: Finished difference Result 3170 states and 4201 transitions. [2022-02-23 19:55:16,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-23 19:55:16,232 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 36.42857142857143) internal successors, (255), 6 states have internal predecessors, (255), 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 601 [2022-02-23 19:55:16,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:16,243 INFO L225 Difference]: With dead ends: 3170 [2022-02-23 19:55:16,243 INFO L226 Difference]: Without dead ends: 3041 [2022-02-23 19:55:16,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1217 GetRequests, 1207 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-02-23 19:55:16,244 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 764 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:16,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [764 Valid, 334 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-23 19:55:16,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3041 states. [2022-02-23 19:55:16,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3041 to 2418. [2022-02-23 19:55:16,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 2413 states have (on average 1.3315375051802736) internal successors, (3213), 2413 states have internal predecessors, (3213), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:16,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3217 transitions. [2022-02-23 19:55:16,289 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3217 transitions. Word has length 601 [2022-02-23 19:55:16,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:16,290 INFO L470 AbstractCegarLoop]: Abstraction has 2418 states and 3217 transitions. [2022-02-23 19:55:16,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 36.42857142857143) internal successors, (255), 6 states have internal predecessors, (255), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:16,296 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3217 transitions. [2022-02-23 19:55:16,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2022-02-23 19:55:16,304 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:16,304 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 21, 21, 20, 20, 19, 19, 18, 18, 18, 18, 14, 10, 10, 10, 10, 10, 10, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-23 19:55:16,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-23 19:55:16,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:55:16,529 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:16,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:16,529 INFO L85 PathProgramCache]: Analyzing trace with hash -2100819575, now seen corresponding path program 1 times [2022-02-23 19:55:16,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:16,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159905501] [2022-02-23 19:55:16,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:16,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:16,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:16,653 INFO L134 CoverageAnalysis]: Checked inductivity of 6182 backedges. 2675 proven. 0 refuted. 0 times theorem prover too weak. 3507 trivial. 0 not checked. [2022-02-23 19:55:16,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:16,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159905501] [2022-02-23 19:55:16,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159905501] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:16,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:55:16,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:55:16,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867814293] [2022-02-23 19:55:16,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:16,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:55:16,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:16,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:55:16,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:55:16,658 INFO L87 Difference]: Start difference. First operand 2418 states and 3217 transitions. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 3 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:16,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:16,897 INFO L93 Difference]: Finished difference Result 2670 states and 3504 transitions. [2022-02-23 19:55:16,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:55:16,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 3 states have internal predecessors, (175), 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 765 [2022-02-23 19:55:16,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:16,921 INFO L225 Difference]: With dead ends: 2670 [2022-02-23 19:55:16,921 INFO L226 Difference]: Without dead ends: 2670 [2022-02-23 19:55:16,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:55:16,922 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 215 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:16,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 227 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:55:16,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2022-02-23 19:55:16,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 2656. [2022-02-23 19:55:16,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2656 states, 2651 states have (on average 1.3149754809505847) internal successors, (3486), 2651 states have internal predecessors, (3486), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:16,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2656 states to 2656 states and 3490 transitions. [2022-02-23 19:55:16,961 INFO L78 Accepts]: Start accepts. Automaton has 2656 states and 3490 transitions. Word has length 765 [2022-02-23 19:55:16,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:16,961 INFO L470 AbstractCegarLoop]: Abstraction has 2656 states and 3490 transitions. [2022-02-23 19:55:16,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 3 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:16,961 INFO L276 IsEmpty]: Start isEmpty. Operand 2656 states and 3490 transitions. [2022-02-23 19:55:16,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2022-02-23 19:55:16,971 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:16,971 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 25, 25, 24, 24, 23, 23, 22, 22, 22, 22, 18, 14, 14, 10, 10, 10, 10, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-23 19:55:16,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-23 19:55:16,971 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:16,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:16,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1774785123, now seen corresponding path program 1 times [2022-02-23 19:55:16,972 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:16,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92390996] [2022-02-23 19:55:16,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:16,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:17,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:17,105 INFO L134 CoverageAnalysis]: Checked inductivity of 8724 backedges. 3742 proven. 0 refuted. 0 times theorem prover too weak. 4982 trivial. 0 not checked. [2022-02-23 19:55:17,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:17,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92390996] [2022-02-23 19:55:17,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92390996] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:55:17,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:55:17,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:55:17,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294387727] [2022-02-23 19:55:17,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:55:17,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:55:17,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:17,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:55:17,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:55:17,108 INFO L87 Difference]: Start difference. First operand 2656 states and 3490 transitions. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:17,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:17,351 INFO L93 Difference]: Finished difference Result 2922 states and 3791 transitions. [2022-02-23 19:55:17,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:55:17,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 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 889 [2022-02-23 19:55:17,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:17,365 INFO L225 Difference]: With dead ends: 2922 [2022-02-23 19:55:17,366 INFO L226 Difference]: Without dead ends: 2922 [2022-02-23 19:55:17,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:55:17,367 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 215 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:17,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 227 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 19:55:17,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2022-02-23 19:55:17,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2908. [2022-02-23 19:55:17,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2903 states have (on average 1.2996899758870135) internal successors, (3773), 2903 states have internal predecessors, (3773), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:17,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 3777 transitions. [2022-02-23 19:55:17,401 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 3777 transitions. Word has length 889 [2022-02-23 19:55:17,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:17,402 INFO L470 AbstractCegarLoop]: Abstraction has 2908 states and 3777 transitions. [2022-02-23 19:55:17,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:17,402 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 3777 transitions. [2022-02-23 19:55:17,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1022 [2022-02-23 19:55:17,413 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:55:17,414 INFO L514 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 29, 29, 28, 28, 27, 27, 26, 26, 26, 26, 22, 18, 18, 14, 14, 10, 10, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-23 19:55:17,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-23 19:55:17,414 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:55:17,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:55:17,414 INFO L85 PathProgramCache]: Analyzing trace with hash -228540207, now seen corresponding path program 1 times [2022-02-23 19:55:17,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:55:17,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248457156] [2022-02-23 19:55:17,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:17,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:55:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:17,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:55:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:17,600 INFO L134 CoverageAnalysis]: Checked inductivity of 11822 backedges. 6447 proven. 26 refuted. 0 times theorem prover too weak. 5349 trivial. 0 not checked. [2022-02-23 19:55:17,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:55:17,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248457156] [2022-02-23 19:55:17,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248457156] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 19:55:17,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397527308] [2022-02-23 19:55:17,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:55:17,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:55:17,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:55:17,608 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) [2022-02-23 19:55:17,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-23 19:55:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:55:17,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 1550 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-23 19:55:17,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 19:55:19,023 INFO L134 CoverageAnalysis]: Checked inductivity of 11822 backedges. 6447 proven. 26 refuted. 0 times theorem prover too weak. 5349 trivial. 0 not checked. [2022-02-23 19:55:19,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 19:55:20,194 INFO L134 CoverageAnalysis]: Checked inductivity of 11822 backedges. 6447 proven. 26 refuted. 0 times theorem prover too weak. 5349 trivial. 0 not checked. [2022-02-23 19:55:20,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397527308] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 19:55:20,194 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 19:55:20,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-02-23 19:55:20,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639859792] [2022-02-23 19:55:20,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 19:55:20,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-23 19:55:20,196 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:55:20,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-23 19:55:20,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-02-23 19:55:20,197 INFO L87 Difference]: Start difference. First operand 2908 states and 3777 transitions. Second operand has 9 states, 9 states have (on average 39.44444444444444) internal successors, (355), 8 states have internal predecessors, (355), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:20,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:55:20,778 INFO L93 Difference]: Finished difference Result 1892 states and 2461 transitions. [2022-02-23 19:55:20,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-23 19:55:20,779 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 39.44444444444444) internal successors, (355), 8 states have internal predecessors, (355), 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 1021 [2022-02-23 19:55:20,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:55:20,780 INFO L225 Difference]: With dead ends: 1892 [2022-02-23 19:55:20,780 INFO L226 Difference]: Without dead ends: 0 [2022-02-23 19:55:20,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2055 GetRequests, 2044 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2022-02-23 19:55:20,780 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 427 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-23 19:55:20,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 315 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-23 19:55:20,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-23 19:55:20,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-23 19:55:20,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-23 19:55:20,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-23 19:55:20,781 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1021 [2022-02-23 19:55:20,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:55:20,782 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-23 19:55:20,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 39.44444444444444) internal successors, (355), 8 states have internal predecessors, (355), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:55:20,782 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-23 19:55:20,782 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-23 19:55:20,784 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-23 19:55:20,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-23 19:55:20,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 19:55:20,998 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:55:20,999 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-23 19:55:21,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 07:55:21 BasicIcfg [2022-02-23 19:55:21,002 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-23 19:55:21,002 INFO L158 Benchmark]: Toolchain (without parser) took 18986.12ms. Allocated memory was 206.6MB in the beginning and 370.1MB in the end (delta: 163.6MB). Free memory was 151.3MB in the beginning and 144.7MB in the end (delta: 6.6MB). Peak memory consumption was 170.6MB. Max. memory is 8.0GB. [2022-02-23 19:55:21,002 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 206.6MB. Free memory is still 168.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-23 19:55:21,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.86ms. Allocated memory was 206.6MB in the beginning and 256.9MB in the end (delta: 50.3MB). Free memory was 151.1MB in the beginning and 223.7MB in the end (delta: -72.6MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-02-23 19:55:21,002 INFO L158 Benchmark]: Boogie Preprocessor took 40.47ms. Allocated memory is still 256.9MB. Free memory was 223.7MB in the beginning and 221.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-23 19:55:21,003 INFO L158 Benchmark]: RCFGBuilder took 593.18ms. Allocated memory is still 256.9MB. Free memory was 221.1MB in the beginning and 192.8MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-02-23 19:55:21,003 INFO L158 Benchmark]: IcfgTransformer took 47.07ms. Allocated memory is still 256.9MB. Free memory was 192.8MB in the beginning and 189.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-23 19:55:21,003 INFO L158 Benchmark]: TraceAbstraction took 17887.35ms. Allocated memory was 256.9MB in the beginning and 370.1MB in the end (delta: 113.2MB). Free memory was 189.1MB in the beginning and 144.7MB in the end (delta: 44.4MB). Peak memory consumption was 158.4MB. Max. memory is 8.0GB. [2022-02-23 19:55:21,004 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 206.6MB. Free memory is still 168.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 411.86ms. Allocated memory was 206.6MB in the beginning and 256.9MB in the end (delta: 50.3MB). Free memory was 151.1MB in the beginning and 223.7MB in the end (delta: -72.6MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.47ms. Allocated memory is still 256.9MB. Free memory was 223.7MB in the beginning and 221.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 593.18ms. Allocated memory is still 256.9MB. Free memory was 221.1MB in the beginning and 192.8MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * IcfgTransformer took 47.07ms. Allocated memory is still 256.9MB. Free memory was 192.8MB in the beginning and 189.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 17887.35ms. Allocated memory was 256.9MB in the beginning and 370.1MB in the end (delta: 113.2MB). Free memory was 189.1MB in the beginning and 144.7MB in the end (delta: 44.4MB). Peak memory consumption was 158.4MB. 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: 642]: 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, 156 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.8s, OverallIterations: 22, TraceHistogramMax: 31, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6322 SdHoareTripleChecker+Valid, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6320 mSDsluCounter, 6417 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 871 mSDsCounter, 573 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5252 IncrementalHoareTripleChecker+Invalid, 5825 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 573 mSolverCounterUnsat, 5546 mSDtfsCounter, 5252 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5241 GetRequests, 5156 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3215occurred in iteration=17, InterpolantAutomatonStates: 91, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 22 MinimizatonAttempts, 1119 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 10614 NumberOfCodeBlocks, 10614 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 12206 ConstructedInterpolants, 0 QuantifiedInterpolants, 17010 SizeOfPredicates, 2 NumberOfNonLiveVariables, 5723 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 30 InterpolantComputations, 20 PerfectInterpolantSequences, 83450/83710 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-23 19:55:21,029 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...