/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-7390193 [2022-04-05 04:13:42,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 04:13:42,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 04:13:42,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 04:13:42,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 04:13:42,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 04:13:42,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 04:13:42,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 04:13:42,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 04:13:42,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 04:13:42,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 04:13:42,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 04:13:42,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 04:13:42,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 04:13:42,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 04:13:42,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 04:13:42,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 04:13:42,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 04:13:42,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 04:13:42,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 04:13:42,486 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 04:13:42,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 04:13:42,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 04:13:42,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 04:13:42,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 04:13:42,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-05 04:13:42,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 04:13:42,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 04:13:42,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 04:13:42,504 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-05 04:13:42,510 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 04:13:42,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 04:13:42,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 04:13:42,512 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-05 04:13:42,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 04:13:42,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-05 04:13:42,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 04:13:42,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 04:13:42,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 04:13:42,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 04:13:42,513 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-05 04:13:42,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 04:13:42,513 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 04:13:42,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 04:13:42,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 04:13:42,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 04:13:42,513 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-05 04:13:42,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 04:13:42,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:13:42,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 04:13:42,514 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 04:13:42,514 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 04:13:42,514 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 04:13:42,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 04:13:42,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 04:13:42,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 04:13:42,721 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 04:13:42,722 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 04:13:42,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_8.cil.c [2022-04-05 04:13:42,767 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/445cdb269/790fd29f6ca047e197bd64e6f1d88547/FLAGa7d3aba96 [2022-04-05 04:13:43,149 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 04:13:43,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_8.cil.c [2022-04-05 04:13:43,159 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/445cdb269/790fd29f6ca047e197bd64e6f1d88547/FLAGa7d3aba96 [2022-04-05 04:13:43,169 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/445cdb269/790fd29f6ca047e197bd64e6f1d88547 [2022-04-05 04:13:43,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 04:13:43,173 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 04:13:43,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 04:13:43,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 04:13:43,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 04:13:43,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:13:43" (1/1) ... [2022-04-05 04:13:43,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3272bf62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:13:43, skipping insertion in model container [2022-04-05 04:13:43,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:13:43" (1/1) ... [2022-04-05 04:13:43,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 04:13:43,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 04:13:43,394 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] [2022-04-05 04:13:43,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:13:43,404 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 04:13:43,434 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] [2022-04-05 04:13:43,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:13:43,456 INFO L208 MainTranslator]: Completed translation [2022-04-05 04:13:43,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:13:43 WrapperNode [2022-04-05 04:13:43,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 04:13:43,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 04:13:43,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 04:13:43,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 04:13:43,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:13:43" (1/1) ... [2022-04-05 04:13:43,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:13:43" (1/1) ... [2022-04-05 04:13:43,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:13:43" (1/1) ... [2022-04-05 04:13:43,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:13:43" (1/1) ... [2022-04-05 04:13:43,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:13:43" (1/1) ... [2022-04-05 04:13:43,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:13:43" (1/1) ... [2022-04-05 04:13:43,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:13:43" (1/1) ... [2022-04-05 04:13:43,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 04:13:43,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 04:13:43,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 04:13:43,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 04:13:43,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:13:43" (1/1) ... [2022-04-05 04:13:43,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:13:43,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:13:43,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-05 04:13:43,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-05 04:13:43,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 04:13:43,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 04:13:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 04:13:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-05 04:13:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 04:13:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 04:13:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 04:13:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 04:13:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 04:13:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-05 04:13:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 04:13:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-05 04:13:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-05 04:13:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 04:13:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 04:13:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 04:13:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 04:13:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 04:13:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 04:13:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 04:13:43,614 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 04:13:43,615 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 04:13:43,672 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:13:44,010 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-04-05 04:13:44,010 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-04-05 04:13:44,022 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 04:13:44,028 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 04:13:44,028 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 04:13:44,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:13:44 BoogieIcfgContainer [2022-04-05 04:13:44,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 04:13:44,031 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 04:13:44,031 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 04:13:44,032 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 04:13:44,034 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:13:44" (1/1) ... [2022-04-05 04:13:44,035 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-05 04:13:44,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:13:44 BasicIcfg [2022-04-05 04:13:44,056 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 04:13:44,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 04:13:44,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 04:13:44,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 04:13:44,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 04:13:43" (1/4) ... [2022-04-05 04:13:44,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66bc734e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:13:44, skipping insertion in model container [2022-04-05 04:13:44,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:13:43" (2/4) ... [2022-04-05 04:13:44,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66bc734e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:13:44, skipping insertion in model container [2022-04-05 04:13:44,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:13:44" (3/4) ... [2022-04-05 04:13:44,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66bc734e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 04:13:44, skipping insertion in model container [2022-04-05 04:13:44,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:13:44" (4/4) ... [2022-04-05 04:13:44,061 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_8.cil.cJordan [2022-04-05 04:13:44,065 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-05 04:13:44,065 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 04:13:44,092 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 04:13:44,097 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-05 04:13:44,098 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 04:13:44,118 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) [2022-04-05 04:13:44,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-04-05 04:13:44,131 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:44,132 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:13:44,132 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:44,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:44,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1186597234, now seen corresponding path program 1 times [2022-04-05 04:13:44,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:44,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618539610] [2022-04-05 04:13:44,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:44,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:44,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:44,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:13:44,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:44,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618539610] [2022-04-05 04:13:44,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618539610] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:44,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:13:44,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:13:44,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592416940] [2022-04-05 04:13:44,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:44,412 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:13:44,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:44,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:13:44,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:13:44,439 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) [2022-04-05 04:13:44,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:44,768 INFO L93 Difference]: Finished difference Result 290 states and 479 transitions. [2022-04-05 04:13:44,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:13:44,770 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 [2022-04-05 04:13:44,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:44,785 INFO L225 Difference]: With dead ends: 290 [2022-04-05 04:13:44,785 INFO L226 Difference]: Without dead ends: 263 [2022-04-05 04:13:44,787 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:13:44,789 INFO L913 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, 0.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:13:44,790 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [662 Valid, 255 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-05 04:13:44,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2022-04-05 04:13:44,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2022-04-05 04:13:44,830 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) [2022-04-05 04:13:44,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 397 transitions. [2022-04-05 04:13:44,832 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 397 transitions. Word has length 48 [2022-04-05 04:13:44,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:44,833 INFO L478 AbstractCegarLoop]: Abstraction has 263 states and 397 transitions. [2022-04-05 04:13:44,833 INFO L479 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) [2022-04-05 04:13:44,833 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 397 transitions. [2022-04-05 04:13:44,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 04:13:44,835 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:44,835 INFO L499 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] [2022-04-05 04:13:44,835 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 04:13:44,836 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:44,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:44,836 INFO L85 PathProgramCache]: Analyzing trace with hash 784259584, now seen corresponding path program 1 times [2022-04-05 04:13:44,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:44,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034334365] [2022-04-05 04:13:44,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:44,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:44,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:44,914 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:13:44,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:44,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034334365] [2022-04-05 04:13:44,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034334365] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:44,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:13:44,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:13:44,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11350718] [2022-04-05 04:13:44,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:44,916 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:13:44,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:44,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:13:44,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:13:44,917 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) [2022-04-05 04:13:45,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:45,132 INFO L93 Difference]: Finished difference Result 292 states and 434 transitions. [2022-04-05 04:13:45,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:13:45,133 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 [2022-04-05 04:13:45,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:45,135 INFO L225 Difference]: With dead ends: 292 [2022-04-05 04:13:45,135 INFO L226 Difference]: Without dead ends: 292 [2022-04-05 04:13:45,138 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:13:45,139 INFO L913 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 [2022-04-05 04:13:45,140 INFO L914 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] [2022-04-05 04:13:45,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-04-05 04:13:45,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 284. [2022-04-05 04:13:45,160 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) [2022-04-05 04:13:45,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 423 transitions. [2022-04-05 04:13:45,162 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 423 transitions. Word has length 64 [2022-04-05 04:13:45,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:45,162 INFO L478 AbstractCegarLoop]: Abstraction has 284 states and 423 transitions. [2022-04-05 04:13:45,162 INFO L479 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) [2022-04-05 04:13:45,162 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 423 transitions. [2022-04-05 04:13:45,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-04-05 04:13:45,165 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:45,165 INFO L499 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] [2022-04-05 04:13:45,165 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 04:13:45,165 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:45,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:45,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1949677792, now seen corresponding path program 1 times [2022-04-05 04:13:45,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:45,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713349716] [2022-04-05 04:13:45,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:45,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:45,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:45,233 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:13:45,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:45,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713349716] [2022-04-05 04:13:45,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713349716] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:45,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:13:45,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:13:45,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495760735] [2022-04-05 04:13:45,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:45,235 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:13:45,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:45,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:13:45,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:13:45,235 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) [2022-04-05 04:13:45,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:45,425 INFO L93 Difference]: Finished difference Result 394 states and 561 transitions. [2022-04-05 04:13:45,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:13:45,425 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 [2022-04-05 04:13:45,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:45,429 INFO L225 Difference]: With dead ends: 394 [2022-04-05 04:13:45,429 INFO L226 Difference]: Without dead ends: 394 [2022-04-05 04:13:45,431 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:13:45,435 INFO L913 BasicCegarLoop]: 224 mSDtfsCounter, 264 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-04-05 04:13:45,437 INFO L914 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] [2022-04-05 04:13:45,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-04-05 04:13:45,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 366. [2022-04-05 04:13:45,452 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) [2022-04-05 04:13:45,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 521 transitions. [2022-04-05 04:13:45,454 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 521 transitions. Word has length 85 [2022-04-05 04:13:45,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:45,454 INFO L478 AbstractCegarLoop]: Abstraction has 366 states and 521 transitions. [2022-04-05 04:13:45,455 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:13:45,455 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 521 transitions. [2022-04-05 04:13:45,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-04-05 04:13:45,462 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:45,462 INFO L499 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] [2022-04-05 04:13:45,462 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-05 04:13:45,462 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:45,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:45,463 INFO L85 PathProgramCache]: Analyzing trace with hash -883709505, now seen corresponding path program 1 times [2022-04-05 04:13:45,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:45,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138155427] [2022-04-05 04:13:45,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:45,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:45,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:45,551 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:13:45,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:45,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138155427] [2022-04-05 04:13:45,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138155427] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:45,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:13:45,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:13:45,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708614448] [2022-04-05 04:13:45,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:45,552 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:13:45,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:45,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:13:45,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:13:45,553 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) [2022-04-05 04:13:45,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:45,732 INFO L93 Difference]: Finished difference Result 420 states and 587 transitions. [2022-04-05 04:13:45,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:13:45,732 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 [2022-04-05 04:13:45,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:45,735 INFO L225 Difference]: With dead ends: 420 [2022-04-05 04:13:45,735 INFO L226 Difference]: Without dead ends: 420 [2022-04-05 04:13:45,736 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:13:45,741 INFO L913 BasicCegarLoop]: 226 mSDtfsCounter, 226 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-04-05 04:13:45,742 INFO L914 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] [2022-04-05 04:13:45,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-04-05 04:13:45,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 412. [2022-04-05 04:13:45,749 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) [2022-04-05 04:13:45,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 577 transitions. [2022-04-05 04:13:45,750 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 577 transitions. Word has length 85 [2022-04-05 04:13:45,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:45,751 INFO L478 AbstractCegarLoop]: Abstraction has 412 states and 577 transitions. [2022-04-05 04:13:45,751 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:13:45,751 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 577 transitions. [2022-04-05 04:13:45,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-04-05 04:13:45,792 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:45,793 INFO L499 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] [2022-04-05 04:13:45,793 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-05 04:13:45,793 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:45,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:45,794 INFO L85 PathProgramCache]: Analyzing trace with hash 779145481, now seen corresponding path program 1 times [2022-04-05 04:13:45,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:45,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402586004] [2022-04-05 04:13:45,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:45,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:45,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:45,843 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:13:45,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:45,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402586004] [2022-04-05 04:13:45,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402586004] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:45,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:13:45,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:13:45,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178329737] [2022-04-05 04:13:45,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:45,844 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:13:45,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:45,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:13:45,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:13:45,845 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) [2022-04-05 04:13:46,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:46,007 INFO L93 Difference]: Finished difference Result 608 states and 854 transitions. [2022-04-05 04:13:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:13:46,008 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 [2022-04-05 04:13:46,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:46,009 INFO L225 Difference]: With dead ends: 608 [2022-04-05 04:13:46,010 INFO L226 Difference]: Without dead ends: 602 [2022-04-05 04:13:46,010 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:13:46,010 INFO L913 BasicCegarLoop]: 224 mSDtfsCounter, 352 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:13:46,010 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 231 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-05 04:13:46,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-04-05 04:13:46,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 588. [2022-04-05 04:13:46,020 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) [2022-04-05 04:13:46,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 831 transitions. [2022-04-05 04:13:46,022 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 831 transitions. Word has length 98 [2022-04-05 04:13:46,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:46,022 INFO L478 AbstractCegarLoop]: Abstraction has 588 states and 831 transitions. [2022-04-05 04:13:46,022 INFO L479 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) [2022-04-05 04:13:46,023 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 831 transitions. [2022-04-05 04:13:46,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-04-05 04:13:46,024 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:46,024 INFO L499 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] [2022-04-05 04:13:46,024 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-05 04:13:46,024 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:46,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:46,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1541749664, now seen corresponding path program 1 times [2022-04-05 04:13:46,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:46,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284635146] [2022-04-05 04:13:46,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:46,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:46,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:46,085 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 04:13:46,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:46,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284635146] [2022-04-05 04:13:46,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284635146] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:46,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:13:46,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:13:46,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087666165] [2022-04-05 04:13:46,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:46,087 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:13:46,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:46,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:13:46,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:13:46,088 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) [2022-04-05 04:13:46,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:46,291 INFO L93 Difference]: Finished difference Result 664 states and 933 transitions. [2022-04-05 04:13:46,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:13:46,292 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 [2022-04-05 04:13:46,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:46,294 INFO L225 Difference]: With dead ends: 664 [2022-04-05 04:13:46,294 INFO L226 Difference]: Without dead ends: 664 [2022-04-05 04:13:46,295 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:13:46,295 INFO L913 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 [2022-04-05 04:13:46,295 INFO L914 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] [2022-04-05 04:13:46,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2022-04-05 04:13:46,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 638. [2022-04-05 04:13:46,305 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) [2022-04-05 04:13:46,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 891 transitions. [2022-04-05 04:13:46,307 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 891 transitions. Word has length 106 [2022-04-05 04:13:46,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:46,308 INFO L478 AbstractCegarLoop]: Abstraction has 638 states and 891 transitions. [2022-04-05 04:13:46,308 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:13:46,308 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 891 transitions. [2022-04-05 04:13:46,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-05 04:13:46,310 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:46,310 INFO L499 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] [2022-04-05 04:13:46,310 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-05 04:13:46,311 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:46,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:46,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1480032937, now seen corresponding path program 1 times [2022-04-05 04:13:46,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:46,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913703521] [2022-04-05 04:13:46,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:46,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:46,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-04-05 04:13:46,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:46,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913703521] [2022-04-05 04:13:46,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913703521] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:46,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:13:46,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:13:46,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559243925] [2022-04-05 04:13:46,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:46,389 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:13:46,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:46,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:13:46,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:13:46,390 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) [2022-04-05 04:13:46,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:46,614 INFO L93 Difference]: Finished difference Result 708 states and 981 transitions. [2022-04-05 04:13:46,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:13:46,614 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 [2022-04-05 04:13:46,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:46,617 INFO L225 Difference]: With dead ends: 708 [2022-04-05 04:13:46,617 INFO L226 Difference]: Without dead ends: 708 [2022-04-05 04:13:46,618 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:13:46,618 INFO L913 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 [2022-04-05 04:13:46,618 INFO L914 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] [2022-04-05 04:13:46,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2022-04-05 04:13:46,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 692. [2022-04-05 04:13:46,631 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) [2022-04-05 04:13:46,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 955 transitions. [2022-04-05 04:13:46,634 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 955 transitions. Word has length 132 [2022-04-05 04:13:46,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:46,634 INFO L478 AbstractCegarLoop]: Abstraction has 692 states and 955 transitions. [2022-04-05 04:13:46,634 INFO L479 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) [2022-04-05 04:13:46,634 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 955 transitions. [2022-04-05 04:13:46,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-04-05 04:13:46,636 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:46,637 INFO L499 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] [2022-04-05 04:13:46,637 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-05 04:13:46,637 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:46,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:46,638 INFO L85 PathProgramCache]: Analyzing trace with hash -731592814, now seen corresponding path program 1 times [2022-04-05 04:13:46,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:46,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785788346] [2022-04-05 04:13:46,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:46,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:46,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:46,704 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 04:13:46,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:46,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785788346] [2022-04-05 04:13:46,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785788346] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:46,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:13:46,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:13:46,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888675754] [2022-04-05 04:13:46,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:46,708 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:13:46,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:46,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:13:46,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:13:46,710 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) [2022-04-05 04:13:46,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:46,904 INFO L93 Difference]: Finished difference Result 712 states and 976 transitions. [2022-04-05 04:13:46,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:13:46,905 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 [2022-04-05 04:13:46,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:46,908 INFO L225 Difference]: With dead ends: 712 [2022-04-05 04:13:46,908 INFO L226 Difference]: Without dead ends: 710 [2022-04-05 04:13:46,909 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:13:46,909 INFO L913 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 [2022-04-05 04:13:46,910 INFO L914 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] [2022-04-05 04:13:46,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-04-05 04:13:46,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 698. [2022-04-05 04:13:46,923 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) [2022-04-05 04:13:46,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 959 transitions. [2022-04-05 04:13:46,926 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 959 transitions. Word has length 138 [2022-04-05 04:13:46,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:46,926 INFO L478 AbstractCegarLoop]: Abstraction has 698 states and 959 transitions. [2022-04-05 04:13:46,926 INFO L479 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) [2022-04-05 04:13:46,927 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 959 transitions. [2022-04-05 04:13:46,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-04-05 04:13:46,929 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:46,929 INFO L499 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] [2022-04-05 04:13:46,929 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-05 04:13:46,929 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:46,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:46,930 INFO L85 PathProgramCache]: Analyzing trace with hash -538858338, now seen corresponding path program 1 times [2022-04-05 04:13:46,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:46,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285890098] [2022-04-05 04:13:46,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:46,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:47,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:47,007 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-04-05 04:13:47,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:47,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285890098] [2022-04-05 04:13:47,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285890098] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:47,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:13:47,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:13:47,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424364710] [2022-04-05 04:13:47,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:47,008 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:13:47,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:47,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:13:47,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:13:47,009 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) [2022-04-05 04:13:47,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:47,217 INFO L93 Difference]: Finished difference Result 760 states and 1031 transitions. [2022-04-05 04:13:47,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:13:47,217 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 [2022-04-05 04:13:47,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:47,220 INFO L225 Difference]: With dead ends: 760 [2022-04-05 04:13:47,220 INFO L226 Difference]: Without dead ends: 760 [2022-04-05 04:13:47,221 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:13:47,221 INFO L913 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 [2022-04-05 04:13:47,222 INFO L914 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] [2022-04-05 04:13:47,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2022-04-05 04:13:47,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 756. [2022-04-05 04:13:47,234 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) [2022-04-05 04:13:47,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1027 transitions. [2022-04-05 04:13:47,237 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1027 transitions. Word has length 155 [2022-04-05 04:13:47,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:47,237 INFO L478 AbstractCegarLoop]: Abstraction has 756 states and 1027 transitions. [2022-04-05 04:13:47,237 INFO L479 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) [2022-04-05 04:13:47,237 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1027 transitions. [2022-04-05 04:13:47,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-04-05 04:13:47,240 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:47,240 INFO L499 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] [2022-04-05 04:13:47,240 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-05 04:13:47,240 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:47,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:47,241 INFO L85 PathProgramCache]: Analyzing trace with hash -647558084, now seen corresponding path program 1 times [2022-04-05 04:13:47,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:47,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270457799] [2022-04-05 04:13:47,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:47,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:47,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:47,302 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-04-05 04:13:47,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:47,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270457799] [2022-04-05 04:13:47,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270457799] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:47,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:13:47,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:13:47,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550192952] [2022-04-05 04:13:47,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:47,303 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:13:47,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:47,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:13:47,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:13:47,303 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) [2022-04-05 04:13:47,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:47,501 INFO L93 Difference]: Finished difference Result 818 states and 1099 transitions. [2022-04-05 04:13:47,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:13:47,502 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 [2022-04-05 04:13:47,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:47,504 INFO L225 Difference]: With dead ends: 818 [2022-04-05 04:13:47,504 INFO L226 Difference]: Without dead ends: 818 [2022-04-05 04:13:47,504 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:13:47,505 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 234 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-04-05 04:13:47,505 INFO L914 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] [2022-04-05 04:13:47,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2022-04-05 04:13:47,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2022-04-05 04:13:47,513 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) [2022-04-05 04:13:47,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1099 transitions. [2022-04-05 04:13:47,516 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1099 transitions. Word has length 160 [2022-04-05 04:13:47,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:47,516 INFO L478 AbstractCegarLoop]: Abstraction has 818 states and 1099 transitions. [2022-04-05 04:13:47,516 INFO L479 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) [2022-04-05 04:13:47,516 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1099 transitions. [2022-04-05 04:13:47,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-04-05 04:13:47,518 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:47,518 INFO L499 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] [2022-04-05 04:13:47,518 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-05 04:13:47,518 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:47,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:47,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1149825200, now seen corresponding path program 1 times [2022-04-05 04:13:47,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:47,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862383751] [2022-04-05 04:13:47,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:47,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:47,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:47,582 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 26 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-04-05 04:13:47,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:47,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862383751] [2022-04-05 04:13:47,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862383751] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:13:47,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204072593] [2022-04-05 04:13:47,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:47,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:13:47,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:13:47,595 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 04:13:47,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-05 04:13:47,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:47,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 2 conjunts are in the unsatisfiable core [2022-04-05 04:13:47,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:13:48,136 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-04-05 04:13:48,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-05 04:13:48,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204072593] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:48,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-05 04:13:48,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-04-05 04:13:48,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808194832] [2022-04-05 04:13:48,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:48,138 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-05 04:13:48,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:48,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-05 04:13:48,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:13:48,138 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) [2022-04-05 04:13:48,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:48,170 INFO L93 Difference]: Finished difference Result 1230 states and 1650 transitions. [2022-04-05 04:13:48,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-05 04:13:48,171 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 [2022-04-05 04:13:48,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:48,174 INFO L225 Difference]: With dead ends: 1230 [2022-04-05 04:13:48,174 INFO L226 Difference]: Without dead ends: 1230 [2022-04-05 04:13:48,175 INFO L912 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 [2022-04-05 04:13:48,176 INFO L913 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 [2022-04-05 04:13:48,176 INFO L914 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] [2022-04-05 04:13:48,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2022-04-05 04:13:48,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1230. [2022-04-05 04:13:48,190 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) [2022-04-05 04:13:48,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1650 transitions. [2022-04-05 04:13:48,194 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1650 transitions. Word has length 188 [2022-04-05 04:13:48,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:48,194 INFO L478 AbstractCegarLoop]: Abstraction has 1230 states and 1650 transitions. [2022-04-05 04:13:48,194 INFO L479 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) [2022-04-05 04:13:48,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1650 transitions. [2022-04-05 04:13:48,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-04-05 04:13:48,197 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:48,197 INFO L499 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] [2022-04-05 04:13:48,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-05 04:13:48,411 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-04-05 04:13:48,412 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:48,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:48,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1556839531, now seen corresponding path program 1 times [2022-04-05 04:13:48,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:48,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669914395] [2022-04-05 04:13:48,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:48,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:48,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:48,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:48,475 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-04-05 04:13:48,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:48,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669914395] [2022-04-05 04:13:48,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669914395] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:48,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:13:48,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:13:48,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840444930] [2022-04-05 04:13:48,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:48,477 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:13:48,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:48,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:13:48,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:13:48,477 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) [2022-04-05 04:13:48,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:48,696 INFO L93 Difference]: Finished difference Result 1636 states and 2191 transitions. [2022-04-05 04:13:48,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:13:48,696 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 [2022-04-05 04:13:48,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:48,701 INFO L225 Difference]: With dead ends: 1636 [2022-04-05 04:13:48,701 INFO L226 Difference]: Without dead ends: 1636 [2022-04-05 04:13:48,701 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:13:48,701 INFO L913 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 [2022-04-05 04:13:48,702 INFO L914 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] [2022-04-05 04:13:48,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2022-04-05 04:13:48,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1636. [2022-04-05 04:13:48,723 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) [2022-04-05 04:13:48,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2191 transitions. [2022-04-05 04:13:48,727 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2191 transitions. Word has length 195 [2022-04-05 04:13:48,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:48,727 INFO L478 AbstractCegarLoop]: Abstraction has 1636 states and 2191 transitions. [2022-04-05 04:13:48,728 INFO L479 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) [2022-04-05 04:13:48,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2191 transitions. [2022-04-05 04:13:48,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-04-05 04:13:48,730 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:48,731 INFO L499 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] [2022-04-05 04:13:48,731 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-05 04:13:48,731 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:48,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:48,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1120597249, now seen corresponding path program 1 times [2022-04-05 04:13:48,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:48,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446278524] [2022-04-05 04:13:48,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:48,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:48,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:48,772 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-04-05 04:13:48,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:48,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446278524] [2022-04-05 04:13:48,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446278524] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:48,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:13:48,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:13:48,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890464798] [2022-04-05 04:13:48,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:48,773 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:13:48,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:48,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:13:48,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:13:48,774 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) [2022-04-05 04:13:48,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:48,969 INFO L93 Difference]: Finished difference Result 1687 states and 2249 transitions. [2022-04-05 04:13:48,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:13:48,970 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 [2022-04-05 04:13:48,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:48,976 INFO L225 Difference]: With dead ends: 1687 [2022-04-05 04:13:48,976 INFO L226 Difference]: Without dead ends: 1687 [2022-04-05 04:13:48,976 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:13:48,977 INFO L913 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 [2022-04-05 04:13:48,977 INFO L914 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] [2022-04-05 04:13:48,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2022-04-05 04:13:49,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1687. [2022-04-05 04:13:49,007 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) [2022-04-05 04:13:49,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2249 transitions. [2022-04-05 04:13:49,013 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2249 transitions. Word has length 196 [2022-04-05 04:13:49,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:49,014 INFO L478 AbstractCegarLoop]: Abstraction has 1687 states and 2249 transitions. [2022-04-05 04:13:49,014 INFO L479 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) [2022-04-05 04:13:49,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2249 transitions. [2022-04-05 04:13:49,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-04-05 04:13:49,019 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:49,019 INFO L499 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] [2022-04-05 04:13:49,019 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-05 04:13:49,019 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:49,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:49,020 INFO L85 PathProgramCache]: Analyzing trace with hash 37095226, now seen corresponding path program 1 times [2022-04-05 04:13:49,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:49,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735258980] [2022-04-05 04:13:49,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:49,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:49,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:49,084 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2022-04-05 04:13:49,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:49,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735258980] [2022-04-05 04:13:49,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735258980] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:49,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:13:49,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:13:49,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905776645] [2022-04-05 04:13:49,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:49,086 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:13:49,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:49,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:13:49,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:13:49,087 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) [2022-04-05 04:13:49,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:49,284 INFO L93 Difference]: Finished difference Result 1847 states and 2425 transitions. [2022-04-05 04:13:49,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:13:49,285 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 [2022-04-05 04:13:49,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:49,289 INFO L225 Difference]: With dead ends: 1847 [2022-04-05 04:13:49,289 INFO L226 Difference]: Without dead ends: 1680 [2022-04-05 04:13:49,289 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:13:49,290 INFO L913 BasicCegarLoop]: 225 mSDtfsCounter, 220 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-04-05 04:13:49,290 INFO L914 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] [2022-04-05 04:13:49,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2022-04-05 04:13:49,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1680. [2022-04-05 04:13:49,311 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) [2022-04-05 04:13:49,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2231 transitions. [2022-04-05 04:13:49,315 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2231 transitions. Word has length 233 [2022-04-05 04:13:49,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:49,315 INFO L478 AbstractCegarLoop]: Abstraction has 1680 states and 2231 transitions. [2022-04-05 04:13:49,315 INFO L479 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) [2022-04-05 04:13:49,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2231 transitions. [2022-04-05 04:13:49,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2022-04-05 04:13:49,319 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:49,320 INFO L499 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] [2022-04-05 04:13:49,320 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-05 04:13:49,320 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:49,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:49,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1753718484, now seen corresponding path program 1 times [2022-04-05 04:13:49,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:49,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190549714] [2022-04-05 04:13:49,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:49,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:49,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:49,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1088 backedges. 719 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-04-05 04:13:49,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:49,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190549714] [2022-04-05 04:13:49,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190549714] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:49,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:13:49,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:13:49,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479996307] [2022-04-05 04:13:49,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:49,367 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:13:49,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:49,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:13:49,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:13:49,367 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) [2022-04-05 04:13:49,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:49,535 INFO L93 Difference]: Finished difference Result 3204 states and 4266 transitions. [2022-04-05 04:13:49,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:13:49,535 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 [2022-04-05 04:13:49,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:49,540 INFO L225 Difference]: With dead ends: 3204 [2022-04-05 04:13:49,540 INFO L226 Difference]: Without dead ends: 2022 [2022-04-05 04:13:49,541 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:13:49,541 INFO L913 BasicCegarLoop]: 390 mSDtfsCounter, 345 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:13:49,541 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 397 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-05 04:13:49,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2022-04-05 04:13:49,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 2020. [2022-04-05 04:13:49,563 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) [2022-04-05 04:13:49,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2020 states to 2020 states and 2690 transitions. [2022-04-05 04:13:49,568 INFO L78 Accepts]: Start accepts. Automaton has 2020 states and 2690 transitions. Word has length 345 [2022-04-05 04:13:49,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:49,568 INFO L478 AbstractCegarLoop]: Abstraction has 2020 states and 2690 transitions. [2022-04-05 04:13:49,568 INFO L479 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) [2022-04-05 04:13:49,568 INFO L276 IsEmpty]: Start isEmpty. Operand 2020 states and 2690 transitions. [2022-04-05 04:13:49,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2022-04-05 04:13:49,574 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:49,574 INFO L499 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] [2022-04-05 04:13:49,574 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-05 04:13:49,574 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:49,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:49,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1560614213, now seen corresponding path program 1 times [2022-04-05 04:13:49,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:49,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229142] [2022-04-05 04:13:49,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:49,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:49,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:49,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1192 proven. 26 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-04-05 04:13:49,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:49,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229142] [2022-04-05 04:13:49,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229142] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:13:49,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721501296] [2022-04-05 04:13:49,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:49,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:13:49,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:13:49,634 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 04:13:49,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-05 04:13:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:49,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 2 conjunts are in the unsatisfiable core [2022-04-05 04:13:49,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:13:50,236 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 582 proven. 0 refuted. 0 times theorem prover too weak. 1422 trivial. 0 not checked. [2022-04-05 04:13:50,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-05 04:13:50,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721501296] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:50,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-05 04:13:50,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-04-05 04:13:50,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060641839] [2022-04-05 04:13:50,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:50,238 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-05 04:13:50,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:50,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-05 04:13:50,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:13:50,238 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) [2022-04-05 04:13:50,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:50,279 INFO L93 Difference]: Finished difference Result 2812 states and 3750 transitions. [2022-04-05 04:13:50,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-05 04:13:50,280 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 [2022-04-05 04:13:50,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:50,286 INFO L225 Difference]: With dead ends: 2812 [2022-04-05 04:13:50,286 INFO L226 Difference]: Without dead ends: 2429 [2022-04-05 04:13:50,286 INFO L912 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 [2022-04-05 04:13:50,287 INFO L913 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 [2022-04-05 04:13:50,287 INFO L914 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] [2022-04-05 04:13:50,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2022-04-05 04:13:50,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 2429. [2022-04-05 04:13:50,313 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) [2022-04-05 04:13:50,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2429 states to 2429 states and 3236 transitions. [2022-04-05 04:13:50,318 INFO L78 Accepts]: Start accepts. Automaton has 2429 states and 3236 transitions. Word has length 448 [2022-04-05 04:13:50,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:50,318 INFO L478 AbstractCegarLoop]: Abstraction has 2429 states and 3236 transitions. [2022-04-05 04:13:50,318 INFO L479 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) [2022-04-05 04:13:50,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2429 states and 3236 transitions. [2022-04-05 04:13:50,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2022-04-05 04:13:50,326 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:50,326 INFO L499 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] [2022-04-05 04:13:50,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-05 04:13:50,543 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-04-05 04:13:50,543 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:50,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:50,544 INFO L85 PathProgramCache]: Analyzing trace with hash 168081285, now seen corresponding path program 1 times [2022-04-05 04:13:50,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:50,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571240608] [2022-04-05 04:13:50,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:50,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:50,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:50,624 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1775 proven. 26 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2022-04-05 04:13:50,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:50,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571240608] [2022-04-05 04:13:50,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571240608] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:13:50,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365412243] [2022-04-05 04:13:50,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:50,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:13:50,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:13:50,626 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 04:13:50,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-05 04:13:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:50,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 980 conjuncts, 2 conjunts are in the unsatisfiable core [2022-04-05 04:13:50,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:13:51,507 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1179 proven. 0 refuted. 0 times theorem prover too weak. 2470 trivial. 0 not checked. [2022-04-05 04:13:51,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-05 04:13:51,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365412243] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:51,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-05 04:13:51,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-04-05 04:13:51,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700036511] [2022-04-05 04:13:51,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:51,508 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-05 04:13:51,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:51,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-05 04:13:51,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:13:51,509 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) [2022-04-05 04:13:51,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:51,567 INFO L93 Difference]: Finished difference Result 3221 states and 4298 transitions. [2022-04-05 04:13:51,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-05 04:13:51,567 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 [2022-04-05 04:13:51,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:51,576 INFO L225 Difference]: With dead ends: 3221 [2022-04-05 04:13:51,576 INFO L226 Difference]: Without dead ends: 3217 [2022-04-05 04:13:51,576 INFO L912 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 [2022-04-05 04:13:51,576 INFO L913 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 [2022-04-05 04:13:51,577 INFO L914 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] [2022-04-05 04:13:51,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3217 states. [2022-04-05 04:13:51,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3217 to 3215. [2022-04-05 04:13:51,613 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) [2022-04-05 04:13:51,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 4289 transitions. [2022-04-05 04:13:51,622 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 4289 transitions. Word has length 601 [2022-04-05 04:13:51,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:51,622 INFO L478 AbstractCegarLoop]: Abstraction has 3215 states and 4289 transitions. [2022-04-05 04:13:51,622 INFO L479 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) [2022-04-05 04:13:51,622 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 4289 transitions. [2022-04-05 04:13:51,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2022-04-05 04:13:51,632 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:51,632 INFO L499 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] [2022-04-05 04:13:51,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-05 04:13:51,851 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:13:51,852 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:51,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:51,852 INFO L85 PathProgramCache]: Analyzing trace with hash -786147610, now seen corresponding path program 1 times [2022-04-05 04:13:51,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:51,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677801280] [2022-04-05 04:13:51,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:51,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:51,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:51,949 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1775 proven. 26 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2022-04-05 04:13:51,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:51,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677801280] [2022-04-05 04:13:51,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677801280] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:13:51,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152830431] [2022-04-05 04:13:51,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:51,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:13:51,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:13:51,951 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 04:13:51,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-05 04:13:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:52,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-05 04:13:52,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:13:52,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1193 proven. 0 refuted. 0 times theorem prover too weak. 2456 trivial. 0 not checked. [2022-04-05 04:13:52,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-05 04:13:52,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152830431] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:52,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-05 04:13:52,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-04-05 04:13:52,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357369501] [2022-04-05 04:13:52,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:52,937 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-05 04:13:52,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:52,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-05 04:13:52,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:13:52,938 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) [2022-04-05 04:13:52,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:52,951 INFO L93 Difference]: Finished difference Result 2803 states and 3743 transitions. [2022-04-05 04:13:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-05 04:13:52,952 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 [2022-04-05 04:13:52,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:52,960 INFO L225 Difference]: With dead ends: 2803 [2022-04-05 04:13:52,960 INFO L226 Difference]: Without dead ends: 2803 [2022-04-05 04:13:52,960 INFO L912 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 [2022-04-05 04:13:52,961 INFO L913 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 [2022-04-05 04:13:52,961 INFO L914 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] [2022-04-05 04:13:52,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2022-04-05 04:13:52,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2455. [2022-04-05 04:13:52,994 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) [2022-04-05 04:13:52,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 3273 transitions. [2022-04-05 04:13:52,998 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 3273 transitions. Word has length 601 [2022-04-05 04:13:52,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:52,999 INFO L478 AbstractCegarLoop]: Abstraction has 2455 states and 3273 transitions. [2022-04-05 04:13:52,999 INFO L479 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) [2022-04-05 04:13:52,999 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 3273 transitions. [2022-04-05 04:13:53,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2022-04-05 04:13:53,005 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:53,005 INFO L499 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] [2022-04-05 04:13:53,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-04-05 04:13:53,219 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-04-05 04:13:53,219 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:53,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:53,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1838306117, now seen corresponding path program 1 times [2022-04-05 04:13:53,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:53,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160541313] [2022-04-05 04:13:53,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:53,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:53,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:53,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:53,303 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1775 proven. 26 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2022-04-05 04:13:53,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:53,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160541313] [2022-04-05 04:13:53,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160541313] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:13:53,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397171433] [2022-04-05 04:13:53,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:53,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:13:53,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:13:53,305 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 04:13:53,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-05 04:13:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:53,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-05 04:13:53,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:13:54,143 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1775 proven. 26 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2022-04-05 04:13:54,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:13:54,840 INFO L134 CoverageAnalysis]: Checked inductivity of 3649 backedges. 1775 proven. 26 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2022-04-05 04:13:54,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397171433] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-05 04:13:54,840 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-05 04:13:54,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-04-05 04:13:54,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318708560] [2022-04-05 04:13:54,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-05 04:13:54,842 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 04:13:54,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:54,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 04:13:54,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-05 04:13:54,843 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) [2022-04-05 04:13:55,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:55,352 INFO L93 Difference]: Finished difference Result 3170 states and 4201 transitions. [2022-04-05 04:13:55,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 04:13:55,353 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 [2022-04-05 04:13:55,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:55,360 INFO L225 Difference]: With dead ends: 3170 [2022-04-05 04:13:55,361 INFO L226 Difference]: Without dead ends: 3041 [2022-04-05 04:13:55,361 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1217 GetRequests, 1207 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:13:55,361 INFO L913 BasicCegarLoop]: 317 mSDtfsCounter, 764 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:13:55,361 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [764 Valid, 334 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-05 04:13:55,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3041 states. [2022-04-05 04:13:55,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3041 to 2418. [2022-04-05 04:13:55,392 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) [2022-04-05 04:13:55,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3217 transitions. [2022-04-05 04:13:55,395 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3217 transitions. Word has length 601 [2022-04-05 04:13:55,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:55,395 INFO L478 AbstractCegarLoop]: Abstraction has 2418 states and 3217 transitions. [2022-04-05 04:13:55,396 INFO L479 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) [2022-04-05 04:13:55,396 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3217 transitions. [2022-04-05 04:13:55,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2022-04-05 04:13:55,402 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:55,402 INFO L499 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] [2022-04-05 04:13:55,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-04-05 04:13:55,624 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:13:55,625 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:55,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:55,625 INFO L85 PathProgramCache]: Analyzing trace with hash -2100819575, now seen corresponding path program 1 times [2022-04-05 04:13:55,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:55,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520012537] [2022-04-05 04:13:55,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:55,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:55,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:55,766 INFO L134 CoverageAnalysis]: Checked inductivity of 6182 backedges. 2675 proven. 0 refuted. 0 times theorem prover too weak. 3507 trivial. 0 not checked. [2022-04-05 04:13:55,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:55,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520012537] [2022-04-05 04:13:55,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520012537] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:55,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:13:55,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:13:55,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691072498] [2022-04-05 04:13:55,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:55,769 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:13:55,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:55,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:13:55,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:13:55,770 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) [2022-04-05 04:13:55,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:55,981 INFO L93 Difference]: Finished difference Result 2670 states and 3504 transitions. [2022-04-05 04:13:55,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:13:55,981 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 [2022-04-05 04:13:55,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:55,987 INFO L225 Difference]: With dead ends: 2670 [2022-04-05 04:13:55,988 INFO L226 Difference]: Without dead ends: 2670 [2022-04-05 04:13:55,988 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:13:55,988 INFO L913 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 [2022-04-05 04:13:55,988 INFO L914 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] [2022-04-05 04:13:55,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2022-04-05 04:13:56,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 2656. [2022-04-05 04:13:56,016 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) [2022-04-05 04:13:56,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2656 states to 2656 states and 3490 transitions. [2022-04-05 04:13:56,019 INFO L78 Accepts]: Start accepts. Automaton has 2656 states and 3490 transitions. Word has length 765 [2022-04-05 04:13:56,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:56,019 INFO L478 AbstractCegarLoop]: Abstraction has 2656 states and 3490 transitions. [2022-04-05 04:13:56,020 INFO L479 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) [2022-04-05 04:13:56,020 INFO L276 IsEmpty]: Start isEmpty. Operand 2656 states and 3490 transitions. [2022-04-05 04:13:56,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2022-04-05 04:13:56,027 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:56,027 INFO L499 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] [2022-04-05 04:13:56,028 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-05 04:13:56,028 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:56,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:56,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1774785123, now seen corresponding path program 1 times [2022-04-05 04:13:56,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:56,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926083584] [2022-04-05 04:13:56,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:56,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:56,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:56,148 INFO L134 CoverageAnalysis]: Checked inductivity of 8724 backedges. 3742 proven. 0 refuted. 0 times theorem prover too weak. 4982 trivial. 0 not checked. [2022-04-05 04:13:56,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:56,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926083584] [2022-04-05 04:13:56,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926083584] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:13:56,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:13:56,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:13:56,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060400039] [2022-04-05 04:13:56,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:13:56,150 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:13:56,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:56,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:13:56,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:13:56,151 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) [2022-04-05 04:13:56,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:56,349 INFO L93 Difference]: Finished difference Result 2922 states and 3791 transitions. [2022-04-05 04:13:56,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:13:56,349 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 [2022-04-05 04:13:56,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:56,354 INFO L225 Difference]: With dead ends: 2922 [2022-04-05 04:13:56,354 INFO L226 Difference]: Without dead ends: 2922 [2022-04-05 04:13:56,354 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:13:56,355 INFO L913 BasicCegarLoop]: 220 mSDtfsCounter, 215 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-04-05 04:13:56,355 INFO L914 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] [2022-04-05 04:13:56,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2022-04-05 04:13:56,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2908. [2022-04-05 04:13:56,377 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) [2022-04-05 04:13:56,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 3777 transitions. [2022-04-05 04:13:56,380 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 3777 transitions. Word has length 889 [2022-04-05 04:13:56,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:56,381 INFO L478 AbstractCegarLoop]: Abstraction has 2908 states and 3777 transitions. [2022-04-05 04:13:56,381 INFO L479 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) [2022-04-05 04:13:56,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 3777 transitions. [2022-04-05 04:13:56,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1022 [2022-04-05 04:13:56,398 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:13:56,398 INFO L499 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] [2022-04-05 04:13:56,399 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-05 04:13:56,399 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:13:56,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:13:56,399 INFO L85 PathProgramCache]: Analyzing trace with hash -228540207, now seen corresponding path program 1 times [2022-04-05 04:13:56,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:13:56,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324380997] [2022-04-05 04:13:56,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:56,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:13:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:56,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:13:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:56,552 INFO L134 CoverageAnalysis]: Checked inductivity of 11822 backedges. 6447 proven. 26 refuted. 0 times theorem prover too weak. 5349 trivial. 0 not checked. [2022-04-05 04:13:56,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:13:56,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324380997] [2022-04-05 04:13:56,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324380997] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:13:56,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622357721] [2022-04-05 04:13:56,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:13:56,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:13:56,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:13:56,553 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 04:13:56,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-05 04:13:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:13:56,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 1550 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-05 04:13:56,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:13:57,771 INFO L134 CoverageAnalysis]: Checked inductivity of 11822 backedges. 6447 proven. 26 refuted. 0 times theorem prover too weak. 5349 trivial. 0 not checked. [2022-04-05 04:13:57,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:13:58,788 INFO L134 CoverageAnalysis]: Checked inductivity of 11822 backedges. 6447 proven. 26 refuted. 0 times theorem prover too weak. 5349 trivial. 0 not checked. [2022-04-05 04:13:58,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622357721] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-05 04:13:58,789 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-05 04:13:58,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-04-05 04:13:58,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278278808] [2022-04-05 04:13:58,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-05 04:13:58,790 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-05 04:13:58,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:13:58,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-05 04:13:58,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-04-05 04:13:58,791 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) [2022-04-05 04:13:59,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:13:59,283 INFO L93 Difference]: Finished difference Result 1892 states and 2461 transitions. [2022-04-05 04:13:59,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-05 04:13:59,285 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 [2022-04-05 04:13:59,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:13:59,286 INFO L225 Difference]: With dead ends: 1892 [2022-04-05 04:13:59,286 INFO L226 Difference]: Without dead ends: 0 [2022-04-05 04:13:59,286 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2055 GetRequests, 2044 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2022-04-05 04:13:59,287 INFO L913 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, 0.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:13:59,287 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 315 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-05 04:13:59,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-05 04:13:59,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-05 04:13:59,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-05 04:13:59,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-05 04:13:59,287 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1021 [2022-04-05 04:13:59,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:13:59,287 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-05 04:13:59,288 INFO L479 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) [2022-04-05 04:13:59,288 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-05 04:13:59,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-05 04:13:59,290 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-05 04:13:59,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-04-05 04:13:59,507 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:13:59,510 INFO L719 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] [2022-04-05 04:13:59,511 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-05 04:13:59,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 04:13:59 BasicIcfg [2022-04-05 04:13:59,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-05 04:13:59,513 INFO L158 Benchmark]: Toolchain (without parser) took 16340.18ms. Allocated memory was 188.7MB in the beginning and 354.4MB in the end (delta: 165.7MB). Free memory was 140.4MB in the beginning and 168.5MB in the end (delta: -28.2MB). Peak memory consumption was 138.5MB. Max. memory is 8.0GB. [2022-04-05 04:13:59,513 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 188.7MB. Free memory was 157.2MB in the beginning and 157.0MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-05 04:13:59,513 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.60ms. Allocated memory is still 188.7MB. Free memory was 140.1MB in the beginning and 160.6MB in the end (delta: -20.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-04-05 04:13:59,513 INFO L158 Benchmark]: Boogie Preprocessor took 38.28ms. Allocated memory is still 188.7MB. Free memory was 160.6MB in the beginning and 158.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-05 04:13:59,514 INFO L158 Benchmark]: RCFGBuilder took 534.48ms. Allocated memory is still 188.7MB. Free memory was 158.1MB in the beginning and 130.6MB in the end (delta: 27.5MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-04-05 04:13:59,514 INFO L158 Benchmark]: IcfgTransformer took 25.05ms. Allocated memory is still 188.7MB. Free memory was 130.6MB in the beginning and 127.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-04-05 04:13:59,514 INFO L158 Benchmark]: TraceAbstraction took 15455.35ms. Allocated memory was 188.7MB in the beginning and 354.4MB in the end (delta: 165.7MB). Free memory was 126.6MB in the beginning and 168.5MB in the end (delta: -41.9MB). Peak memory consumption was 125.1MB. Max. memory is 8.0GB. [2022-04-05 04:13:59,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 188.7MB. Free memory was 157.2MB in the beginning and 157.0MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 282.60ms. Allocated memory is still 188.7MB. Free memory was 140.1MB in the beginning and 160.6MB in the end (delta: -20.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.28ms. Allocated memory is still 188.7MB. Free memory was 160.6MB in the beginning and 158.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 534.48ms. Allocated memory is still 188.7MB. Free memory was 158.1MB in the beginning and 130.6MB in the end (delta: 27.5MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * IcfgTransformer took 25.05ms. Allocated memory is still 188.7MB. Free memory was 130.6MB in the beginning and 127.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * TraceAbstraction took 15455.35ms. Allocated memory was 188.7MB in the beginning and 354.4MB in the end (delta: 165.7MB). Free memory was 126.6MB in the beginning and 168.5MB in the end (delta: -41.9MB). Peak memory consumption was 125.1MB. 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: 15.4s, OverallIterations: 22, TraceHistogramMax: 31, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6322 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6320 mSDsluCounter, 6417 SdHoareTripleChecker+Invalid, 3.2s 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: 0.5s AutomataMinimizationTime, 22 MinimizatonAttempts, 1119 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.2s 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! [2022-04-05 04:13:59,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...