/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_7.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 18:45:10,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 18:45:10,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 18:45:10,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 18:45:10,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 18:45:10,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 18:45:10,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 18:45:10,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 18:45:10,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 18:45:10,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 18:45:10,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 18:45:10,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 18:45:10,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 18:45:10,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 18:45:10,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 18:45:10,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 18:45:10,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 18:45:10,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 18:45:10,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 18:45:10,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 18:45:10,868 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 18:45:10,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 18:45:10,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 18:45:10,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 18:45:10,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 18:45:10,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-17 18:45:10,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-17 18:45:10,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-17 18:45:10,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-17 18:45:10,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-17 18:45:10,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-17 18:45:10,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-17 18:45:10,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-17 18:45:10,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-17 18:45:10,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 18:45:10,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 18:45:10,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 18:45:10,887 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-17 18:45:10,896 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 18:45:10,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 18:45:10,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 18:45:10,898 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-17 18:45:10,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 18:45:10,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-17 18:45:10,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 18:45:10,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 18:45:10,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 18:45:10,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 18:45:10,899 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-17 18:45:10,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 18:45:10,900 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 18:45:10,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 18:45:10,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 18:45:10,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 18:45:10,900 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-17 18:45:10,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 18:45:10,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:45:10,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 18:45:10,900 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 18:45:10,901 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 18:45:10,901 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 18:45:11,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 18:45:11,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 18:45:11,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 18:45:11,137 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 18:45:11,138 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 18:45:11,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_7.cil.c [2022-03-17 18:45:11,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42969ff6d/4a469d3045634e2893ba99ad9daa80a9/FLAG203a6b3fd [2022-03-17 18:45:11,556 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 18:45:11,556 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_7.cil.c [2022-03-17 18:45:11,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42969ff6d/4a469d3045634e2893ba99ad9daa80a9/FLAG203a6b3fd [2022-03-17 18:45:11,577 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42969ff6d/4a469d3045634e2893ba99ad9daa80a9 [2022-03-17 18:45:11,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 18:45:11,580 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 18:45:11,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 18:45:11,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 18:45:11,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 18:45:11,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:45:11" (1/1) ... [2022-03-17 18:45:11,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@488620c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:11, skipping insertion in model container [2022-03-17 18:45:11,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:45:11" (1/1) ... [2022-03-17 18:45:11,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 18:45:11,617 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 18:45:11,919 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_7.cil.c[44376,44389] [2022-03-17 18:45:11,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:45:11,945 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 18:45:11,997 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_7.cil.c[44376,44389] [2022-03-17 18:45:11,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:45:12,009 INFO L208 MainTranslator]: Completed translation [2022-03-17 18:45:12,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:12 WrapperNode [2022-03-17 18:45:12,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 18:45:12,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 18:45:12,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 18:45:12,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 18:45:12,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:12" (1/1) ... [2022-03-17 18:45:12,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:12" (1/1) ... [2022-03-17 18:45:12,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:12" (1/1) ... [2022-03-17 18:45:12,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:12" (1/1) ... [2022-03-17 18:45:12,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:12" (1/1) ... [2022-03-17 18:45:12,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:12" (1/1) ... [2022-03-17 18:45:12,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:12" (1/1) ... [2022-03-17 18:45:12,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 18:45:12,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 18:45:12,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 18:45:12,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 18:45:12,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:12" (1/1) ... [2022-03-17 18:45:12,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:45:12,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:45:12,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-17 18:45:12,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-17 18:45:12,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 18:45:12,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 18:45:12,171 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 18:45:12,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 18:45:12,172 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 18:45:12,172 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 18:45:12,172 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 18:45:12,172 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 18:45:12,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 18:45:12,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 18:45:12,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 18:45:12,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 18:45:12,173 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 18:45:12,173 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 18:45:12,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 18:45:12,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 18:45:12,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 18:45:12,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 18:45:12,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 18:45:12,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 18:45:12,315 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 18:45:12,316 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 18:45:12,406 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:45:12,751 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-03-17 18:45:12,751 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-03-17 18:45:12,757 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 18:45:12,763 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 18:45:12,764 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 18:45:12,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:45:12 BoogieIcfgContainer [2022-03-17 18:45:12,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 18:45:12,766 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 18:45:12,766 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 18:45:12,767 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 18:45:12,770 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:45:12" (1/1) ... [2022-03-17 18:45:12,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:45:12 BasicIcfg [2022-03-17 18:45:12,797 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 18:45:12,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 18:45:12,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 18:45:12,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 18:45:12,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:45:11" (1/4) ... [2022-03-17 18:45:12,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ebb6d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:45:12, skipping insertion in model container [2022-03-17 18:45:12,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:45:12" (2/4) ... [2022-03-17 18:45:12,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ebb6d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:45:12, skipping insertion in model container [2022-03-17 18:45:12,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:45:12" (3/4) ... [2022-03-17 18:45:12,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ebb6d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 06:45:12, skipping insertion in model container [2022-03-17 18:45:12,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:45:12" (4/4) ... [2022-03-17 18:45:12,803 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_7.cil.cJordan [2022-03-17 18:45:12,808 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-17 18:45:12,808 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 18:45:12,843 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 18:45:12,849 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 [2022-03-17 18:45:12,849 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 18:45:12,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 147 states have (on average 1.7210884353741496) internal successors, (253), 148 states have internal predecessors, (253), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-17 18:45:12,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-17 18:45:12,871 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:12,872 INFO L500 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] [2022-03-17 18:45:12,872 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:12,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:12,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1368554690, now seen corresponding path program 1 times [2022-03-17 18:45:12,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:12,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257189569] [2022-03-17 18:45:12,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:12,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:13,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:13,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:45:13,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:13,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257189569] [2022-03-17 18:45:13,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257189569] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:13,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:13,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:13,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37324248] [2022-03-17 18:45:13,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:13,124 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:13,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:13,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:13,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:13,156 INFO L87 Difference]: Start difference. First operand has 155 states, 147 states have (on average 1.7210884353741496) internal successors, (253), 148 states have internal predecessors, (253), 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 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:13,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:13,508 INFO L93 Difference]: Finished difference Result 288 states and 476 transitions. [2022-03-17 18:45:13,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:13,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (3), 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 39 [2022-03-17 18:45:13,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:13,529 INFO L225 Difference]: With dead ends: 288 [2022-03-17 18:45:13,530 INFO L226 Difference]: Without dead ends: 261 [2022-03-17 18:45:13,531 INFO L911 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 [2022-03-17 18:45:13,535 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 665 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:13,536 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [667 Valid, 254 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-17 18:45:13,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-17 18:45:13,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2022-03-17 18:45:13,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5234375) internal successors, (390), 256 states have internal predecessors, (390), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:13,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 394 transitions. [2022-03-17 18:45:13,599 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 394 transitions. Word has length 39 [2022-03-17 18:45:13,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:13,599 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 394 transitions. [2022-03-17 18:45:13,600 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:13,600 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 394 transitions. [2022-03-17 18:45:13,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-03-17 18:45:13,608 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:13,608 INFO L500 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] [2022-03-17 18:45:13,608 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 18:45:13,608 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:13,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:13,611 INFO L85 PathProgramCache]: Analyzing trace with hash 545618672, now seen corresponding path program 1 times [2022-03-17 18:45:13,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:13,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054355876] [2022-03-17 18:45:13,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:13,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:13,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:13,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:13,759 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:45:13,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:13,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054355876] [2022-03-17 18:45:13,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054355876] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:13,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:13,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:13,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135447347] [2022-03-17 18:45:13,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:13,762 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:13,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:13,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:13,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:13,763 INFO L87 Difference]: Start difference. First operand 261 states and 394 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:14,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:14,019 INFO L93 Difference]: Finished difference Result 290 states and 431 transitions. [2022-03-17 18:45:14,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:14,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (3), 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 55 [2022-03-17 18:45:14,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:14,021 INFO L225 Difference]: With dead ends: 290 [2022-03-17 18:45:14,021 INFO L226 Difference]: Without dead ends: 290 [2022-03-17 18:45:14,022 INFO L911 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 [2022-03-17 18:45:14,023 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 225 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:14,023 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 230 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:14,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-03-17 18:45:14,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 282. [2022-03-17 18:45:14,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.5018050541516246) internal successors, (416), 277 states have internal predecessors, (416), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:14,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 420 transitions. [2022-03-17 18:45:14,033 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 420 transitions. Word has length 55 [2022-03-17 18:45:14,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:14,033 INFO L478 AbstractCegarLoop]: Abstraction has 282 states and 420 transitions. [2022-03-17 18:45:14,033 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:14,034 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 420 transitions. [2022-03-17 18:45:14,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-03-17 18:45:14,035 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:14,036 INFO L500 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] [2022-03-17 18:45:14,036 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 18:45:14,036 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:14,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:14,036 INFO L85 PathProgramCache]: Analyzing trace with hash 546117200, now seen corresponding path program 1 times [2022-03-17 18:45:14,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:14,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699980688] [2022-03-17 18:45:14,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:14,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:14,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:14,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:14,121 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:45:14,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:14,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699980688] [2022-03-17 18:45:14,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699980688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:14,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:14,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:14,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419271192] [2022-03-17 18:45:14,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:14,123 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:14,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:14,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:14,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:14,124 INFO L87 Difference]: Start difference. First operand 282 states and 420 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:14,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:14,414 INFO L93 Difference]: Finished difference Result 392 states and 558 transitions. [2022-03-17 18:45:14,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:14,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 76 [2022-03-17 18:45:14,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:14,418 INFO L225 Difference]: With dead ends: 392 [2022-03-17 18:45:14,418 INFO L226 Difference]: Without dead ends: 392 [2022-03-17 18:45:14,419 INFO L911 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 [2022-03-17 18:45:14,424 INFO L912 BasicCegarLoop]: 222 mSDtfsCounter, 269 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:14,427 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 229 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-17 18:45:14,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-03-17 18:45:14,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 364. [2022-03-17 18:45:14,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 359 states have (on average 1.4317548746518105) internal successors, (514), 359 states have internal predecessors, (514), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:14,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 518 transitions. [2022-03-17 18:45:14,444 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 518 transitions. Word has length 76 [2022-03-17 18:45:14,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:14,446 INFO L478 AbstractCegarLoop]: Abstraction has 364 states and 518 transitions. [2022-03-17 18:45:14,447 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:14,447 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 518 transitions. [2022-03-17 18:45:14,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-03-17 18:45:14,448 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:14,449 INFO L500 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] [2022-03-17 18:45:14,449 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 18:45:14,449 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:14,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:14,450 INFO L85 PathProgramCache]: Analyzing trace with hash 896917137, now seen corresponding path program 1 times [2022-03-17 18:45:14,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:14,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639330319] [2022-03-17 18:45:14,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:14,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:14,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:14,561 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:45:14,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:14,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639330319] [2022-03-17 18:45:14,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639330319] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:14,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:14,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:14,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081032969] [2022-03-17 18:45:14,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:14,563 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:14,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:14,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:14,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:14,564 INFO L87 Difference]: Start difference. First operand 364 states and 518 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:14,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:14,797 INFO L93 Difference]: Finished difference Result 420 states and 587 transitions. [2022-03-17 18:45:14,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:14,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 76 [2022-03-17 18:45:14,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:14,799 INFO L225 Difference]: With dead ends: 420 [2022-03-17 18:45:14,799 INFO L226 Difference]: Without dead ends: 420 [2022-03-17 18:45:14,800 INFO L911 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 [2022-03-17 18:45:14,808 INFO L912 BasicCegarLoop]: 224 mSDtfsCounter, 228 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:14,810 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 231 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:14,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-03-17 18:45:14,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 410. [2022-03-17 18:45:14,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 405 states have (on average 1.4074074074074074) internal successors, (570), 405 states have internal predecessors, (570), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:14,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 574 transitions. [2022-03-17 18:45:14,819 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 574 transitions. Word has length 76 [2022-03-17 18:45:14,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:14,820 INFO L478 AbstractCegarLoop]: Abstraction has 410 states and 574 transitions. [2022-03-17 18:45:14,820 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:14,821 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 574 transitions. [2022-03-17 18:45:14,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-03-17 18:45:14,822 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:14,823 INFO L500 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] [2022-03-17 18:45:14,823 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 18:45:14,823 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:14,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:14,824 INFO L85 PathProgramCache]: Analyzing trace with hash -907932217, now seen corresponding path program 1 times [2022-03-17 18:45:14,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:14,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454316053] [2022-03-17 18:45:14,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:14,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:14,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:14,875 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:45:14,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:14,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454316053] [2022-03-17 18:45:14,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454316053] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:14,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:14,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:14,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72069096] [2022-03-17 18:45:14,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:14,877 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:14,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:14,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:14,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:14,878 INFO L87 Difference]: Start difference. First operand 410 states and 574 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:15,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:15,098 INFO L93 Difference]: Finished difference Result 606 states and 851 transitions. [2022-03-17 18:45:15,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:15,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (3), 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 89 [2022-03-17 18:45:15,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:15,102 INFO L225 Difference]: With dead ends: 606 [2022-03-17 18:45:15,102 INFO L226 Difference]: Without dead ends: 600 [2022-03-17 18:45:15,102 INFO L911 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 [2022-03-17 18:45:15,103 INFO L912 BasicCegarLoop]: 222 mSDtfsCounter, 352 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:15,103 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 229 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:15,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-03-17 18:45:15,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 586. [2022-03-17 18:45:15,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 581 states have (on average 1.4182444061962134) internal successors, (824), 581 states have internal predecessors, (824), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:15,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 828 transitions. [2022-03-17 18:45:15,114 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 828 transitions. Word has length 89 [2022-03-17 18:45:15,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:15,114 INFO L478 AbstractCegarLoop]: Abstraction has 586 states and 828 transitions. [2022-03-17 18:45:15,114 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:15,114 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 828 transitions. [2022-03-17 18:45:15,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-17 18:45:15,116 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:15,116 INFO L500 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] [2022-03-17 18:45:15,116 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 18:45:15,116 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:15,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:15,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1650011472, now seen corresponding path program 1 times [2022-03-17 18:45:15,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:15,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983495313] [2022-03-17 18:45:15,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:15,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:15,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:15,175 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:45:15,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:15,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983495313] [2022-03-17 18:45:15,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983495313] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:15,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:15,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:15,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717565115] [2022-03-17 18:45:15,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:15,176 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:15,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:15,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:15,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:15,177 INFO L87 Difference]: Start difference. First operand 586 states and 828 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:15,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:15,423 INFO L93 Difference]: Finished difference Result 664 states and 933 transitions. [2022-03-17 18:45:15,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:15,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-03-17 18:45:15,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:15,426 INFO L225 Difference]: With dead ends: 664 [2022-03-17 18:45:15,426 INFO L226 Difference]: Without dead ends: 664 [2022-03-17 18:45:15,426 INFO L911 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 [2022-03-17 18:45:15,427 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 260 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:15,427 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 230 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:15,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2022-03-17 18:45:15,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 636. [2022-03-17 18:45:15,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 631 states have (on average 1.4009508716323296) internal successors, (884), 631 states have internal predecessors, (884), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:15,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 888 transitions. [2022-03-17 18:45:15,439 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 888 transitions. Word has length 97 [2022-03-17 18:45:15,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:15,440 INFO L478 AbstractCegarLoop]: Abstraction has 636 states and 888 transitions. [2022-03-17 18:45:15,440 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:15,440 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 888 transitions. [2022-03-17 18:45:15,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 18:45:15,442 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:15,442 INFO L500 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] [2022-03-17 18:45:15,442 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 18:45:15,442 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:15,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:15,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1246835362, now seen corresponding path program 1 times [2022-03-17 18:45:15,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:15,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170406635] [2022-03-17 18:45:15,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:15,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:15,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:15,521 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-03-17 18:45:15,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:15,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170406635] [2022-03-17 18:45:15,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170406635] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:15,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:15,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:15,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65126194] [2022-03-17 18:45:15,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:15,523 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:15,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:15,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:15,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:15,524 INFO L87 Difference]: Start difference. First operand 636 states and 888 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:15,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:15,745 INFO L93 Difference]: Finished difference Result 1244 states and 1730 transitions. [2022-03-17 18:45:15,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:15,745 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 123 [2022-03-17 18:45:15,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:15,750 INFO L225 Difference]: With dead ends: 1244 [2022-03-17 18:45:15,750 INFO L226 Difference]: Without dead ends: 1244 [2022-03-17 18:45:15,750 INFO L911 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 [2022-03-17 18:45:15,750 INFO L912 BasicCegarLoop]: 386 mSDtfsCounter, 389 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:15,751 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 393 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:15,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2022-03-17 18:45:15,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 638. [2022-03-17 18:45:15,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 633 states have (on average 1.3996840442338072) internal successors, (886), 633 states have internal predecessors, (886), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:15,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 890 transitions. [2022-03-17 18:45:15,765 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 890 transitions. Word has length 123 [2022-03-17 18:45:15,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:15,765 INFO L478 AbstractCegarLoop]: Abstraction has 638 states and 890 transitions. [2022-03-17 18:45:15,765 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:15,765 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 890 transitions. [2022-03-17 18:45:15,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 18:45:15,767 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:15,767 INFO L500 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] [2022-03-17 18:45:15,767 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 18:45:15,767 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:15,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:15,768 INFO L85 PathProgramCache]: Analyzing trace with hash -2022639935, now seen corresponding path program 1 times [2022-03-17 18:45:15,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:15,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086938574] [2022-03-17 18:45:15,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:15,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:15,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:15,821 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-03-17 18:45:15,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:15,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086938574] [2022-03-17 18:45:15,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086938574] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:15,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:15,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:15,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437577824] [2022-03-17 18:45:15,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:15,823 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:15,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:15,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:15,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:15,823 INFO L87 Difference]: Start difference. First operand 638 states and 890 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:16,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:16,068 INFO L93 Difference]: Finished difference Result 916 states and 1282 transitions. [2022-03-17 18:45:16,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:16,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-17 18:45:16,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:16,074 INFO L225 Difference]: With dead ends: 916 [2022-03-17 18:45:16,074 INFO L226 Difference]: Without dead ends: 916 [2022-03-17 18:45:16,075 INFO L911 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 [2022-03-17 18:45:16,076 INFO L912 BasicCegarLoop]: 379 mSDtfsCounter, 342 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:16,076 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 386 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:16,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2022-03-17 18:45:16,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 916. [2022-03-17 18:45:16,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 911 states have (on average 1.402854006586169) internal successors, (1278), 911 states have internal predecessors, (1278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:16,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1282 transitions. [2022-03-17 18:45:16,091 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1282 transitions. Word has length 123 [2022-03-17 18:45:16,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:16,092 INFO L478 AbstractCegarLoop]: Abstraction has 916 states and 1282 transitions. [2022-03-17 18:45:16,092 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:16,092 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1282 transitions. [2022-03-17 18:45:16,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 18:45:16,095 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:16,095 INFO L500 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] [2022-03-17 18:45:16,095 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 18:45:16,095 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:16,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:16,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1701076128, now seen corresponding path program 1 times [2022-03-17 18:45:16,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:16,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200563840] [2022-03-17 18:45:16,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:16,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:16,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:16,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:16,149 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-03-17 18:45:16,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:16,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200563840] [2022-03-17 18:45:16,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200563840] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:16,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:16,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:16,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419800228] [2022-03-17 18:45:16,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:16,154 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:16,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:16,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:16,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:16,155 INFO L87 Difference]: Start difference. First operand 916 states and 1282 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:16,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:16,353 INFO L93 Difference]: Finished difference Result 940 states and 1311 transitions. [2022-03-17 18:45:16,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:16,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 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 123 [2022-03-17 18:45:16,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:16,357 INFO L225 Difference]: With dead ends: 940 [2022-03-17 18:45:16,357 INFO L226 Difference]: Without dead ends: 940 [2022-03-17 18:45:16,357 INFO L911 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 [2022-03-17 18:45:16,358 INFO L912 BasicCegarLoop]: 238 mSDtfsCounter, 217 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:16,358 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 245 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:16,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2022-03-17 18:45:16,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 940. [2022-03-17 18:45:16,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 935 states have (on average 1.397860962566845) internal successors, (1307), 935 states have internal predecessors, (1307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1311 transitions. [2022-03-17 18:45:16,373 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1311 transitions. Word has length 123 [2022-03-17 18:45:16,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:16,373 INFO L478 AbstractCegarLoop]: Abstraction has 940 states and 1311 transitions. [2022-03-17 18:45:16,373 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:16,373 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1311 transitions. [2022-03-17 18:45:16,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-17 18:45:16,375 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:16,376 INFO L500 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] [2022-03-17 18:45:16,376 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 18:45:16,376 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:16,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:16,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1166481160, now seen corresponding path program 1 times [2022-03-17 18:45:16,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:16,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129930681] [2022-03-17 18:45:16,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:16,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:16,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:16,445 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-03-17 18:45:16,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:16,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129930681] [2022-03-17 18:45:16,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129930681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:16,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:16,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:16,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300586157] [2022-03-17 18:45:16,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:16,446 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:16,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:16,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:16,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:16,447 INFO L87 Difference]: Start difference. First operand 940 states and 1311 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:16,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:16,653 INFO L93 Difference]: Finished difference Result 1264 states and 1764 transitions. [2022-03-17 18:45:16,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:16,653 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 125 [2022-03-17 18:45:16,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:16,657 INFO L225 Difference]: With dead ends: 1264 [2022-03-17 18:45:16,658 INFO L226 Difference]: Without dead ends: 1264 [2022-03-17 18:45:16,658 INFO L911 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 [2022-03-17 18:45:16,658 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 549 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:16,659 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [549 Valid, 202 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:16,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2022-03-17 18:45:16,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1262. [2022-03-17 18:45:16,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1257 states have (on average 1.3993635640413684) internal successors, (1759), 1257 states have internal predecessors, (1759), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:16,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 1763 transitions. [2022-03-17 18:45:16,680 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 1763 transitions. Word has length 125 [2022-03-17 18:45:16,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:16,681 INFO L478 AbstractCegarLoop]: Abstraction has 1262 states and 1763 transitions. [2022-03-17 18:45:16,681 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:16,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 1763 transitions. [2022-03-17 18:45:16,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-17 18:45:16,683 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:16,683 INFO L500 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] [2022-03-17 18:45:16,684 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 18:45:16,684 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:16,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:16,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1151554362, now seen corresponding path program 1 times [2022-03-17 18:45:16,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:16,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483087118] [2022-03-17 18:45:16,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:16,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:16,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:16,751 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-03-17 18:45:16,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:16,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483087118] [2022-03-17 18:45:16,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483087118] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:16,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:16,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:16,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948907880] [2022-03-17 18:45:16,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:16,757 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:16,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:16,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:16,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:16,758 INFO L87 Difference]: Start difference. First operand 1262 states and 1763 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:16,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:16,962 INFO L93 Difference]: Finished difference Result 1586 states and 2217 transitions. [2022-03-17 18:45:16,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:16,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (3), 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 126 [2022-03-17 18:45:16,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:16,968 INFO L225 Difference]: With dead ends: 1586 [2022-03-17 18:45:16,968 INFO L226 Difference]: Without dead ends: 1586 [2022-03-17 18:45:16,968 INFO L911 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 [2022-03-17 18:45:16,969 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 557 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:16,969 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [557 Valid, 200 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:16,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2022-03-17 18:45:17,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1584. [2022-03-17 18:45:17,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1579 states have (on average 1.4008866371120963) internal successors, (2212), 1579 states have internal predecessors, (2212), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:17,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2216 transitions. [2022-03-17 18:45:17,008 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2216 transitions. Word has length 126 [2022-03-17 18:45:17,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:17,009 INFO L478 AbstractCegarLoop]: Abstraction has 1584 states and 2216 transitions. [2022-03-17 18:45:17,009 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:17,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2216 transitions. [2022-03-17 18:45:17,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-17 18:45:17,011 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:17,012 INFO L500 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] [2022-03-17 18:45:17,012 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 18:45:17,012 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:17,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:17,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1844687042, now seen corresponding path program 1 times [2022-03-17 18:45:17,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:17,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744447932] [2022-03-17 18:45:17,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:17,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,061 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-03-17 18:45:17,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:17,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744447932] [2022-03-17 18:45:17,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744447932] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:17,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:17,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:17,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834813785] [2022-03-17 18:45:17,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:17,062 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:17,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:17,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:17,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:17,063 INFO L87 Difference]: Start difference. First operand 1584 states and 2216 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) [2022-03-17 18:45:17,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:17,268 INFO L93 Difference]: Finished difference Result 1766 states and 2448 transitions. [2022-03-17 18:45:17,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:17,268 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 [2022-03-17 18:45:17,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:17,274 INFO L225 Difference]: With dead ends: 1766 [2022-03-17 18:45:17,274 INFO L226 Difference]: Without dead ends: 1766 [2022-03-17 18:45:17,274 INFO L911 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 [2022-03-17 18:45:17,276 INFO L912 BasicCegarLoop]: 224 mSDtfsCounter, 242 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:17,276 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 231 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:17,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2022-03-17 18:45:17,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1719. [2022-03-17 18:45:17,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1719 states, 1714 states have (on average 1.38389731621937) internal successors, (2372), 1714 states have internal predecessors, (2372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:17,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1719 states to 1719 states and 2376 transitions. [2022-03-17 18:45:17,311 INFO L78 Accepts]: Start accepts. Automaton has 1719 states and 2376 transitions. Word has length 132 [2022-03-17 18:45:17,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:17,311 INFO L478 AbstractCegarLoop]: Abstraction has 1719 states and 2376 transitions. [2022-03-17 18:45:17,311 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) [2022-03-17 18:45:17,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1719 states and 2376 transitions. [2022-03-17 18:45:17,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-03-17 18:45:17,314 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:17,314 INFO L500 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] [2022-03-17 18:45:17,314 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 18:45:17,314 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:17,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:17,315 INFO L85 PathProgramCache]: Analyzing trace with hash 151963944, now seen corresponding path program 1 times [2022-03-17 18:45:17,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:17,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956469182] [2022-03-17 18:45:17,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:17,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,355 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:45:17,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:17,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956469182] [2022-03-17 18:45:17,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956469182] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:17,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:17,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:17,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576329724] [2022-03-17 18:45:17,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:17,357 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:17,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:17,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:17,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:17,357 INFO L87 Difference]: Start difference. First operand 1719 states and 2376 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) [2022-03-17 18:45:17,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:17,529 INFO L93 Difference]: Finished difference Result 1755 states and 2411 transitions. [2022-03-17 18:45:17,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:17,530 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 136 [2022-03-17 18:45:17,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:17,535 INFO L225 Difference]: With dead ends: 1755 [2022-03-17 18:45:17,536 INFO L226 Difference]: Without dead ends: 1751 [2022-03-17 18:45:17,536 INFO L911 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 [2022-03-17 18:45:17,537 INFO L912 BasicCegarLoop]: 222 mSDtfsCounter, 351 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:17,537 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 229 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:17,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2022-03-17 18:45:17,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1731. [2022-03-17 18:45:17,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1726 states have (on average 1.3789107763615296) internal successors, (2380), 1726 states have internal predecessors, (2380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:17,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2384 transitions. [2022-03-17 18:45:17,573 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2384 transitions. Word has length 136 [2022-03-17 18:45:17,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:17,573 INFO L478 AbstractCegarLoop]: Abstraction has 1731 states and 2384 transitions. [2022-03-17 18:45:17,573 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) [2022-03-17 18:45:17,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2384 transitions. [2022-03-17 18:45:17,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-17 18:45:17,576 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:17,576 INFO L500 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] [2022-03-17 18:45:17,576 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 18:45:17,577 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:17,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:17,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1593596309, now seen corresponding path program 1 times [2022-03-17 18:45:17,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:17,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077368727] [2022-03-17 18:45:17,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:17,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,631 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-03-17 18:45:17,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:17,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077368727] [2022-03-17 18:45:17,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077368727] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:17,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:17,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:17,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663878493] [2022-03-17 18:45:17,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:17,632 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:17,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:17,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:17,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:17,633 INFO L87 Difference]: Start difference. First operand 1731 states and 2384 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) [2022-03-17 18:45:17,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:17,844 INFO L93 Difference]: Finished difference Result 1886 states and 2564 transitions. [2022-03-17 18:45:17,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:17,844 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 [2022-03-17 18:45:17,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:17,851 INFO L225 Difference]: With dead ends: 1886 [2022-03-17 18:45:17,851 INFO L226 Difference]: Without dead ends: 1886 [2022-03-17 18:45:17,851 INFO L911 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 [2022-03-17 18:45:17,851 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 218 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:17,852 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 230 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:17,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1886 states. [2022-03-17 18:45:17,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1886 to 1876. [2022-03-17 18:45:17,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1876 states, 1871 states have (on average 1.3629075360769642) internal successors, (2550), 1871 states have internal predecessors, (2550), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:17,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 2554 transitions. [2022-03-17 18:45:17,883 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 2554 transitions. Word has length 155 [2022-03-17 18:45:17,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:17,884 INFO L478 AbstractCegarLoop]: Abstraction has 1876 states and 2554 transitions. [2022-03-17 18:45:17,884 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) [2022-03-17 18:45:17,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 2554 transitions. [2022-03-17 18:45:17,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-03-17 18:45:17,887 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:17,887 INFO L500 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, 1] [2022-03-17 18:45:17,887 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 18:45:17,887 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:17,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:17,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1653252751, now seen corresponding path program 1 times [2022-03-17 18:45:17,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:17,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003488350] [2022-03-17 18:45:17,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:17,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:17,943 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-03-17 18:45:17,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:17,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003488350] [2022-03-17 18:45:17,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003488350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:17,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:17,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:17,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868433260] [2022-03-17 18:45:17,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:17,944 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:17,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:17,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:17,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:17,944 INFO L87 Difference]: Start difference. First operand 1876 states and 2554 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:18,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:18,175 INFO L93 Difference]: Finished difference Result 2031 states and 2734 transitions. [2022-03-17 18:45:18,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:18,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (3), 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 161 [2022-03-17 18:45:18,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:18,181 INFO L225 Difference]: With dead ends: 2031 [2022-03-17 18:45:18,182 INFO L226 Difference]: Without dead ends: 2031 [2022-03-17 18:45:18,182 INFO L911 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 [2022-03-17 18:45:18,182 INFO L912 BasicCegarLoop]: 211 mSDtfsCounter, 232 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:18,183 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 218 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:18,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2022-03-17 18:45:18,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 2031. [2022-03-17 18:45:18,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2026 states have (on average 1.3474827245804541) internal successors, (2730), 2026 states have internal predecessors, (2730), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:18,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2734 transitions. [2022-03-17 18:45:18,221 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2734 transitions. Word has length 161 [2022-03-17 18:45:18,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:18,221 INFO L478 AbstractCegarLoop]: Abstraction has 2031 states and 2734 transitions. [2022-03-17 18:45:18,222 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:18,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2734 transitions. [2022-03-17 18:45:18,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-03-17 18:45:18,225 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:18,225 INFO L500 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, 1] [2022-03-17 18:45:18,226 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 18:45:18,226 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:18,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:18,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1005440521, now seen corresponding path program 1 times [2022-03-17 18:45:18,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:18,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834050981] [2022-03-17 18:45:18,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:18,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:18,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:18,296 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 26 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-03-17 18:45:18,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:18,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834050981] [2022-03-17 18:45:18,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834050981] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:45:18,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490752678] [2022-03-17 18:45:18,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:18,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:18,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:45:18,298 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) [2022-03-17 18:45:18,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 18:45:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:18,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-17 18:45:18,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:45:18,868 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-03-17 18:45:18,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-17 18:45:18,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490752678] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:18,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-17 18:45:18,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-03-17 18:45:18,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102569163] [2022-03-17 18:45:18,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:18,869 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-17 18:45:18,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:18,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-17 18:45:18,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:18,870 INFO L87 Difference]: Start difference. First operand 2031 states and 2734 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2022-03-17 18:45:18,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:18,905 INFO L93 Difference]: Finished difference Result 2445 states and 3270 transitions. [2022-03-17 18:45:18,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-17 18:45:18,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 189 [2022-03-17 18:45:18,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:18,913 INFO L225 Difference]: With dead ends: 2445 [2022-03-17 18:45:18,913 INFO L226 Difference]: Without dead ends: 2445 [2022-03-17 18:45:18,914 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:18,914 INFO L912 BasicCegarLoop]: 383 mSDtfsCounter, 131 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:18,914 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 574 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-17 18:45:18,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2445 states. [2022-03-17 18:45:18,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2445 to 2443. [2022-03-17 18:45:18,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2438 states have (on average 1.3392124692370795) internal successors, (3265), 2438 states have internal predecessors, (3265), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:18,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3269 transitions. [2022-03-17 18:45:18,956 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3269 transitions. Word has length 189 [2022-03-17 18:45:18,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:18,957 INFO L478 AbstractCegarLoop]: Abstraction has 2443 states and 3269 transitions. [2022-03-17 18:45:18,957 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2022-03-17 18:45:18,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3269 transitions. [2022-03-17 18:45:18,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-03-17 18:45:18,963 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:18,963 INFO L500 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] [2022-03-17 18:45:18,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-17 18:45:19,179 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,SelfDestructingSolverStorable15 [2022-03-17 18:45:19,180 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:19,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:19,180 INFO L85 PathProgramCache]: Analyzing trace with hash -367874877, now seen corresponding path program 1 times [2022-03-17 18:45:19,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:19,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970946151] [2022-03-17 18:45:19,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:19,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:19,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:19,233 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-03-17 18:45:19,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:19,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970946151] [2022-03-17 18:45:19,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970946151] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:19,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:19,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:19,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259705941] [2022-03-17 18:45:19,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:19,234 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:19,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:19,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:19,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:19,235 INFO L87 Difference]: Start difference. First operand 2443 states and 3269 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:19,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:19,425 INFO L93 Difference]: Finished difference Result 2855 states and 3823 transitions. [2022-03-17 18:45:19,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:19,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (3), 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 193 [2022-03-17 18:45:19,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:19,434 INFO L225 Difference]: With dead ends: 2855 [2022-03-17 18:45:19,434 INFO L226 Difference]: Without dead ends: 2855 [2022-03-17 18:45:19,435 INFO L911 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 [2022-03-17 18:45:19,435 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 542 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:19,435 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [542 Valid, 203 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:19,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2022-03-17 18:45:19,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 2855. [2022-03-17 18:45:19,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2855 states, 2850 states have (on average 1.34) internal successors, (3819), 2850 states have internal predecessors, (3819), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:19,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 3823 transitions. [2022-03-17 18:45:19,480 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 3823 transitions. Word has length 193 [2022-03-17 18:45:19,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:19,480 INFO L478 AbstractCegarLoop]: Abstraction has 2855 states and 3823 transitions. [2022-03-17 18:45:19,480 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:19,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 3823 transitions. [2022-03-17 18:45:19,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-03-17 18:45:19,485 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:19,486 INFO L500 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, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:19,486 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 18:45:19,486 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:19,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:19,487 INFO L85 PathProgramCache]: Analyzing trace with hash -734101191, now seen corresponding path program 1 times [2022-03-17 18:45:19,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:19,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728214071] [2022-03-17 18:45:19,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:19,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:19,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:19,552 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-03-17 18:45:19,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:19,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728214071] [2022-03-17 18:45:19,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728214071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:19,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:19,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:19,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302589739] [2022-03-17 18:45:19,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:19,553 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:19,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:19,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:19,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:19,554 INFO L87 Difference]: Start difference. First operand 2855 states and 3823 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:19,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:19,783 INFO L93 Difference]: Finished difference Result 2862 states and 3818 transitions. [2022-03-17 18:45:19,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:19,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (3), 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 234 [2022-03-17 18:45:19,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:19,792 INFO L225 Difference]: With dead ends: 2862 [2022-03-17 18:45:19,792 INFO L226 Difference]: Without dead ends: 2862 [2022-03-17 18:45:19,793 INFO L911 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 [2022-03-17 18:45:19,793 INFO L912 BasicCegarLoop]: 221 mSDtfsCounter, 243 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:19,793 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 228 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:19,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2862 states. [2022-03-17 18:45:19,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2862 to 2855. [2022-03-17 18:45:19,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2855 states, 2850 states have (on average 1.3357894736842104) internal successors, (3807), 2850 states have internal predecessors, (3807), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:19,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 3811 transitions. [2022-03-17 18:45:19,838 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 3811 transitions. Word has length 234 [2022-03-17 18:45:19,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:19,838 INFO L478 AbstractCegarLoop]: Abstraction has 2855 states and 3811 transitions. [2022-03-17 18:45:19,839 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:19,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 3811 transitions. [2022-03-17 18:45:19,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-03-17 18:45:19,845 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:19,845 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:19,845 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 18:45:19,845 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:19,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:19,846 INFO L85 PathProgramCache]: Analyzing trace with hash 460801847, now seen corresponding path program 1 times [2022-03-17 18:45:19,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:19,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790671570] [2022-03-17 18:45:19,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:19,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:19,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:19,909 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 600 proven. 26 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-03-17 18:45:19,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:19,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790671570] [2022-03-17 18:45:19,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790671570] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:45:19,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202488278] [2022-03-17 18:45:19,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:19,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:19,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:45:19,911 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) [2022-03-17 18:45:19,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-17 18:45:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:20,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-17 18:45:20,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:45:20,568 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2022-03-17 18:45:20,568 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-17 18:45:20,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202488278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:20,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-17 18:45:20,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-03-17 18:45:20,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255341004] [2022-03-17 18:45:20,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:20,570 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-17 18:45:20,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:20,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-17 18:45:20,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:20,571 INFO L87 Difference]: Start difference. First operand 2855 states and 3811 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2022-03-17 18:45:20,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:20,595 INFO L93 Difference]: Finished difference Result 5213 states and 6947 transitions. [2022-03-17 18:45:20,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-17 18:45:20,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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 295 [2022-03-17 18:45:20,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:20,622 INFO L225 Difference]: With dead ends: 5213 [2022-03-17 18:45:20,623 INFO L226 Difference]: Without dead ends: 5213 [2022-03-17 18:45:20,623 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:45:20,623 INFO L912 BasicCegarLoop]: 394 mSDtfsCounter, 114 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:20,624 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 599 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-17 18:45:20,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5213 states. [2022-03-17 18:45:20,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5213 to 5211. [2022-03-17 18:45:20,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5206 states have (on average 1.333461390703035) internal successors, (6942), 5206 states have internal predecessors, (6942), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:20,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 6946 transitions. [2022-03-17 18:45:20,708 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 6946 transitions. Word has length 295 [2022-03-17 18:45:20,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:20,709 INFO L478 AbstractCegarLoop]: Abstraction has 5211 states and 6946 transitions. [2022-03-17 18:45:20,709 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2022-03-17 18:45:20,709 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 6946 transitions. [2022-03-17 18:45:20,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-03-17 18:45:20,718 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:20,718 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:20,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-17 18:45:20,931 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:20,931 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:20,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:20,932 INFO L85 PathProgramCache]: Analyzing trace with hash 741151736, now seen corresponding path program 1 times [2022-03-17 18:45:20,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:20,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519180489] [2022-03-17 18:45:20,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:20,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:20,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:20,998 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 600 proven. 26 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-03-17 18:45:20,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:20,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519180489] [2022-03-17 18:45:20,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519180489] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:45:20,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35783179] [2022-03-17 18:45:20,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:20,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:20,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:45:21,000 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) [2022-03-17 18:45:21,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-17 18:45:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:21,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-17 18:45:21,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:45:21,518 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 600 proven. 26 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-03-17 18:45:21,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:45:21,954 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 600 proven. 26 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-03-17 18:45:21,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35783179] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 18:45:21,955 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 18:45:21,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-03-17 18:45:21,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389934056] [2022-03-17 18:45:21,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 18:45:21,956 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 18:45:21,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:21,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 18:45:21,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-17 18:45:21,957 INFO L87 Difference]: Start difference. First operand 5211 states and 6946 transitions. Second operand has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 6 states have internal predecessors, (249), 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) [2022-03-17 18:45:22,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:22,869 INFO L93 Difference]: Finished difference Result 10796 states and 14099 transitions. [2022-03-17 18:45:22,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-17 18:45:22,871 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 6 states have internal predecessors, (249), 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 295 [2022-03-17 18:45:22,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:22,891 INFO L225 Difference]: With dead ends: 10796 [2022-03-17 18:45:22,892 INFO L226 Difference]: Without dead ends: 10449 [2022-03-17 18:45:22,892 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 598 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-03-17 18:45:22,892 INFO L912 BasicCegarLoop]: 343 mSDtfsCounter, 988 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:22,893 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [988 Valid, 355 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-17 18:45:22,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10449 states. [2022-03-17 18:45:23,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10449 to 5858. [2022-03-17 18:45:23,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5858 states, 5853 states have (on average 1.340679993165898) internal successors, (7847), 5853 states have internal predecessors, (7847), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:23,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 7851 transitions. [2022-03-17 18:45:23,082 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 7851 transitions. Word has length 295 [2022-03-17 18:45:23,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:23,082 INFO L478 AbstractCegarLoop]: Abstraction has 5858 states and 7851 transitions. [2022-03-17 18:45:23,082 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 6 states have internal predecessors, (249), 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) [2022-03-17 18:45:23,082 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 7851 transitions. [2022-03-17 18:45:23,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-03-17 18:45:23,093 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:23,093 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-17 18:45:23,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-17 18:45:23,315 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:23,316 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:23,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:23,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1997367070, now seen corresponding path program 1 times [2022-03-17 18:45:23,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:23,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435721900] [2022-03-17 18:45:23,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:23,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:23,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:23,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:23,379 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 691 proven. 16 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-03-17 18:45:23,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:23,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435721900] [2022-03-17 18:45:23,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435721900] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:45:23,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800431146] [2022-03-17 18:45:23,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:23,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:23,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:45:23,381 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) [2022-03-17 18:45:23,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-17 18:45:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:23,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-17 18:45:23,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:45:23,921 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 691 proven. 16 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-03-17 18:45:23,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:45:24,354 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 691 proven. 16 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-03-17 18:45:24,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800431146] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 18:45:24,355 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 18:45:24,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 7 [2022-03-17 18:45:24,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572788353] [2022-03-17 18:45:24,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 18:45:24,358 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 18:45:24,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:24,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 18:45:24,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-17 18:45:24,360 INFO L87 Difference]: Start difference. First operand 5858 states and 7851 transitions. Second operand has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 6 states have internal predecessors, (218), 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) [2022-03-17 18:45:25,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:25,380 INFO L93 Difference]: Finished difference Result 15590 states and 19771 transitions. [2022-03-17 18:45:25,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-17 18:45:25,381 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 6 states have internal predecessors, (218), 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 325 [2022-03-17 18:45:25,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:25,418 INFO L225 Difference]: With dead ends: 15590 [2022-03-17 18:45:25,418 INFO L226 Difference]: Without dead ends: 15590 [2022-03-17 18:45:25,419 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 658 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-03-17 18:45:25,419 INFO L912 BasicCegarLoop]: 562 mSDtfsCounter, 790 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1348 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:25,419 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [790 Valid, 574 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1348 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-17 18:45:25,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15590 states. [2022-03-17 18:45:25,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15590 to 8823. [2022-03-17 18:45:25,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8823 states, 8818 states have (on average 1.3168518938534814) internal successors, (11612), 8818 states have internal predecessors, (11612), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:25,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8823 states to 8823 states and 11616 transitions. [2022-03-17 18:45:25,628 INFO L78 Accepts]: Start accepts. Automaton has 8823 states and 11616 transitions. Word has length 325 [2022-03-17 18:45:25,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:25,628 INFO L478 AbstractCegarLoop]: Abstraction has 8823 states and 11616 transitions. [2022-03-17 18:45:25,628 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.142857142857142) internal successors, (218), 6 states have internal predecessors, (218), 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) [2022-03-17 18:45:25,629 INFO L276 IsEmpty]: Start isEmpty. Operand 8823 states and 11616 transitions. [2022-03-17 18:45:25,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-03-17 18:45:25,643 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:25,643 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:25,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-17 18:45:25,859 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:25,859 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:25,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:25,860 INFO L85 PathProgramCache]: Analyzing trace with hash 639516366, now seen corresponding path program 1 times [2022-03-17 18:45:25,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:25,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139835809] [2022-03-17 18:45:25,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:25,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:25,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:25,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 771 proven. 0 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2022-03-17 18:45:25,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:25,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139835809] [2022-03-17 18:45:25,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139835809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:25,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:25,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:25,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135009897] [2022-03-17 18:45:25,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:25,938 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:25,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:25,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:25,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:25,940 INFO L87 Difference]: Start difference. First operand 8823 states and 11616 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:26,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:26,161 INFO L93 Difference]: Finished difference Result 5640 states and 7260 transitions. [2022-03-17 18:45:26,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:26,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 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 363 [2022-03-17 18:45:26,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:26,175 INFO L225 Difference]: With dead ends: 5640 [2022-03-17 18:45:26,176 INFO L226 Difference]: Without dead ends: 5010 [2022-03-17 18:45:26,176 INFO L911 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 [2022-03-17 18:45:26,177 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 227 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:26,177 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 230 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:26,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5010 states. [2022-03-17 18:45:26,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5010 to 4783. [2022-03-17 18:45:26,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4783 states, 4778 states have (on average 1.3110087902888237) internal successors, (6264), 4778 states have internal predecessors, (6264), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:26,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4783 states to 4783 states and 6268 transitions. [2022-03-17 18:45:26,253 INFO L78 Accepts]: Start accepts. Automaton has 4783 states and 6268 transitions. Word has length 363 [2022-03-17 18:45:26,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:26,253 INFO L478 AbstractCegarLoop]: Abstraction has 4783 states and 6268 transitions. [2022-03-17 18:45:26,253 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:26,253 INFO L276 IsEmpty]: Start isEmpty. Operand 4783 states and 6268 transitions. [2022-03-17 18:45:26,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-03-17 18:45:26,262 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:26,262 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:26,262 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 18:45:26,263 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:26,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:26,263 INFO L85 PathProgramCache]: Analyzing trace with hash -605306997, now seen corresponding path program 1 times [2022-03-17 18:45:26,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:26,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556280753] [2022-03-17 18:45:26,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:26,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:26,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:26,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1313 backedges. 804 proven. 0 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2022-03-17 18:45:26,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:26,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556280753] [2022-03-17 18:45:26,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556280753] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:26,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:26,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:26,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671659516] [2022-03-17 18:45:26,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:26,330 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:26,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:26,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:26,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:26,331 INFO L87 Difference]: Start difference. First operand 4783 states and 6268 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:26,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:26,570 INFO L93 Difference]: Finished difference Result 5395 states and 6965 transitions. [2022-03-17 18:45:26,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:26,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 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 364 [2022-03-17 18:45:26,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:26,579 INFO L225 Difference]: With dead ends: 5395 [2022-03-17 18:45:26,580 INFO L226 Difference]: Without dead ends: 5395 [2022-03-17 18:45:26,580 INFO L911 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 [2022-03-17 18:45:26,580 INFO L912 BasicCegarLoop]: 220 mSDtfsCounter, 215 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:26,581 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 227 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:26,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5395 states. [2022-03-17 18:45:26,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5395 to 5361. [2022-03-17 18:45:26,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5361 states, 5356 states have (on average 1.2933159073935774) internal successors, (6927), 5356 states have internal predecessors, (6927), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:26,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 6931 transitions. [2022-03-17 18:45:26,651 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 6931 transitions. Word has length 364 [2022-03-17 18:45:26,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:26,651 INFO L478 AbstractCegarLoop]: Abstraction has 5361 states and 6931 transitions. [2022-03-17 18:45:26,652 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:26,652 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 6931 transitions. [2022-03-17 18:45:26,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-03-17 18:45:26,661 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:26,662 INFO L500 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 7, 7, 7, 7, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:26,662 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 18:45:26,662 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:26,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:26,662 INFO L85 PathProgramCache]: Analyzing trace with hash -532180856, now seen corresponding path program 1 times [2022-03-17 18:45:26,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:26,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487721926] [2022-03-17 18:45:26,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:26,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:26,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:26,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1588 backedges. 943 proven. 0 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2022-03-17 18:45:26,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:26,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487721926] [2022-03-17 18:45:26,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487721926] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:45:26,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:45:26,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:45:26,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698642447] [2022-03-17 18:45:26,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:45:26,732 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:45:26,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:26,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:45:26,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:45:26,732 INFO L87 Difference]: Start difference. First operand 5361 states and 6931 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:26,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:26,974 INFO L93 Difference]: Finished difference Result 5356 states and 6691 transitions. [2022-03-17 18:45:26,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:45:26,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (3), 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 395 [2022-03-17 18:45:26,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:26,988 INFO L225 Difference]: With dead ends: 5356 [2022-03-17 18:45:26,988 INFO L226 Difference]: Without dead ends: 5356 [2022-03-17 18:45:26,989 INFO L911 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 [2022-03-17 18:45:26,990 INFO L912 BasicCegarLoop]: 220 mSDtfsCounter, 215 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:26,990 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 227 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-17 18:45:26,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5356 states. [2022-03-17 18:45:27,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5356 to 4634. [2022-03-17 18:45:27,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4634 states, 4629 states have (on average 1.2670123136746598) internal successors, (5865), 4629 states have internal predecessors, (5865), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:27,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4634 states to 4634 states and 5869 transitions. [2022-03-17 18:45:27,047 INFO L78 Accepts]: Start accepts. Automaton has 4634 states and 5869 transitions. Word has length 395 [2022-03-17 18:45:27,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:27,048 INFO L478 AbstractCegarLoop]: Abstraction has 4634 states and 5869 transitions. [2022-03-17 18:45:27,048 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:45:27,048 INFO L276 IsEmpty]: Start isEmpty. Operand 4634 states and 5869 transitions. [2022-03-17 18:45:27,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-03-17 18:45:27,059 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:45:27,060 INFO L500 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 8, 8, 8, 8, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:45:27,060 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 18:45:27,060 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:45:27,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:45:27,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1679315111, now seen corresponding path program 1 times [2022-03-17 18:45:27,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:45:27,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619708894] [2022-03-17 18:45:27,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:27,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:45:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:27,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:45:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:27,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1898 backedges. 518 proven. 22 refuted. 0 times theorem prover too weak. 1358 trivial. 0 not checked. [2022-03-17 18:45:27,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:45:27,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619708894] [2022-03-17 18:45:27,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619708894] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:45:27,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690624451] [2022-03-17 18:45:27,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:45:27,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:45:27,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:45:27,160 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) [2022-03-17 18:45:27,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-17 18:45:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:45:27,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-17 18:45:27,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:45:27,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1898 backedges. 518 proven. 22 refuted. 0 times theorem prover too weak. 1358 trivial. 0 not checked. [2022-03-17 18:45:27,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:45:28,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1898 backedges. 518 proven. 22 refuted. 0 times theorem prover too weak. 1358 trivial. 0 not checked. [2022-03-17 18:45:28,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690624451] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 18:45:28,320 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 18:45:28,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-03-17 18:45:28,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534738421] [2022-03-17 18:45:28,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 18:45:28,321 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-17 18:45:28,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:45:28,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-17 18:45:28,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-03-17 18:45:28,322 INFO L87 Difference]: Start difference. First operand 4634 states and 5869 transitions. Second operand has 9 states, 9 states have (on average 30.22222222222222) internal successors, (272), 8 states have internal predecessors, (272), 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) [2022-03-17 18:45:29,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:45:29,059 INFO L93 Difference]: Finished difference Result 4548 states and 5585 transitions. [2022-03-17 18:45:29,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 18:45:29,060 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 30.22222222222222) internal successors, (272), 8 states have internal predecessors, (272), 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 428 [2022-03-17 18:45:29,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:45:29,061 INFO L225 Difference]: With dead ends: 4548 [2022-03-17 18:45:29,061 INFO L226 Difference]: Without dead ends: 0 [2022-03-17 18:45:29,061 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 871 GetRequests, 859 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-03-17 18:45:29,062 INFO L912 BasicCegarLoop]: 345 mSDtfsCounter, 485 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:45:29,062 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 367 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-17 18:45:29,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-17 18:45:29,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-17 18:45:29,063 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) [2022-03-17 18:45:29,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-17 18:45:29,063 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 428 [2022-03-17 18:45:29,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:45:29,063 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-17 18:45:29,063 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 30.22222222222222) internal successors, (272), 8 states have internal predecessors, (272), 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) [2022-03-17 18:45:29,063 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-17 18:45:29,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-17 18:45:29,066 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-17 18:45:29,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-17 18:45:29,283 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-03-17 18:45:29,286 INFO L718 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, 1, 1, 1] [2022-03-17 18:45:29,287 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-17 18:45:29,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 06:45:29 BasicIcfg [2022-03-17 18:45:29,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-17 18:45:29,289 INFO L158 Benchmark]: Toolchain (without parser) took 17709.32ms. Allocated memory was 181.4MB in the beginning and 425.7MB in the end (delta: 244.3MB). Free memory was 123.6MB in the beginning and 276.0MB in the end (delta: -152.4MB). Peak memory consumption was 92.9MB. Max. memory is 8.0GB. [2022-03-17 18:45:29,290 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 181.4MB. Free memory is still 140.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-17 18:45:29,290 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.07ms. Allocated memory was 181.4MB in the beginning and 294.6MB in the end (delta: 113.2MB). Free memory was 123.3MB in the beginning and 263.2MB in the end (delta: -139.9MB). Peak memory consumption was 16.3MB. Max. memory is 8.0GB. [2022-03-17 18:45:29,290 INFO L158 Benchmark]: Boogie Preprocessor took 77.29ms. Allocated memory is still 294.6MB. Free memory was 263.2MB in the beginning and 260.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-17 18:45:29,290 INFO L158 Benchmark]: RCFGBuilder took 676.17ms. Allocated memory is still 294.6MB. Free memory was 260.6MB in the beginning and 231.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-03-17 18:45:29,290 INFO L158 Benchmark]: IcfgTransformer took 30.49ms. Allocated memory is still 294.6MB. Free memory was 231.2MB in the beginning and 228.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-17 18:45:29,291 INFO L158 Benchmark]: TraceAbstraction took 16490.77ms. Allocated memory was 294.6MB in the beginning and 425.7MB in the end (delta: 131.1MB). Free memory was 227.5MB in the beginning and 276.0MB in the end (delta: -48.5MB). Peak memory consumption was 83.7MB. Max. memory is 8.0GB. [2022-03-17 18:45:29,292 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 181.4MB. Free memory is still 140.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 429.07ms. Allocated memory was 181.4MB in the beginning and 294.6MB in the end (delta: 113.2MB). Free memory was 123.3MB in the beginning and 263.2MB in the end (delta: -139.9MB). Peak memory consumption was 16.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 77.29ms. Allocated memory is still 294.6MB. Free memory was 263.2MB in the beginning and 260.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 676.17ms. Allocated memory is still 294.6MB. Free memory was 260.6MB in the beginning and 231.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * IcfgTransformer took 30.49ms. Allocated memory is still 294.6MB. Free memory was 231.2MB in the beginning and 228.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 16490.77ms. Allocated memory was 294.6MB in the beginning and 425.7MB in the end (delta: 131.1MB). Free memory was 227.5MB in the beginning and 276.0MB in the end (delta: -48.5MB). Peak memory consumption was 83.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 635]: 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, 155 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.4s, OverallIterations: 25, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9048 SdHoareTripleChecker+Valid, 6.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9046 mSDsluCounter, 7321 SdHoareTripleChecker+Invalid, 5.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 584 mSDsCounter, 703 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8009 IncrementalHoareTripleChecker+Invalid, 8712 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 703 mSolverCounterUnsat, 6737 mSDtfsCounter, 8009 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2786 GetRequests, 2680 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8823occurred in iteration=21, InterpolantAutomatonStates: 116, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 25 MinimizatonAttempts, 13127 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 6249 NumberOfCodeBlocks, 6249 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 7264 ConstructedInterpolants, 0 QuantifiedInterpolants, 10795 SizeOfPredicates, 3 NumberOfNonLiveVariables, 3021 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 33 InterpolantComputations, 22 PerfectInterpolantSequences, 19925/20169 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! [2022-03-17 18:45:29,322 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...