/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_clnt.blast.03.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:56:13,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:56:13,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:56:13,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 23:56:13,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 23:56:13,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 23:56:13,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 23:56:13,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 23:56:13,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 23:56:13,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 23:56:13,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 23:56:13,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 23:56:13,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:56:13,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:56:13,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:56:13,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:56:13,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:56:13,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:56:13,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:56:13,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:56:13,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:56:13,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:56:13,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:56:13,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:56:13,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 23:56:13,515 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 23:56:13,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 23:56:13,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 23:56:13,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 23:56:13,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-01-31 23:56:13,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:56:13,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:56:13,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:56:13,524 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-01-31 23:56:13,537 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:56:13,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:56:13,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:56:13,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:56:13,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:56:13,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:56:13,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:56:13,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:56:13,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:56:13,540 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:56:13,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:56:13,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:56:13,541 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:56:13,541 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:56:13,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:56:13,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:56:13,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:56:13,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:56:13,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:56:13,542 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-01-31 23:56:13,542 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:56:13,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:56:13,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:56:13,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:56:13,756 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:56:13,757 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:56:13,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.03.i.cil-2.c [2022-01-31 23:56:13,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcae35694/214af33b55f24b6091b8330a58f971c8/FLAG6bf8121fc [2022-01-31 23:56:14,223 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:56:14,224 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.03.i.cil-2.c [2022-01-31 23:56:14,264 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcae35694/214af33b55f24b6091b8330a58f971c8/FLAG6bf8121fc [2022-01-31 23:56:14,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcae35694/214af33b55f24b6091b8330a58f971c8 [2022-01-31 23:56:14,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:56:14,548 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:56:14,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:56:14,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:56:14,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:56:14,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:56:14" (1/1) ... [2022-01-31 23:56:14,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@512ab68c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:56:14, skipping insertion in model container [2022-01-31 23:56:14,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:56:14" (1/1) ... [2022-01-31 23:56:14,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:56:14,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:56:14,941 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/s3_clnt.blast.03.i.cil-2.c[65397,65410] [2022-01-31 23:56:14,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:56:14,959 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:56:15,063 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/s3_clnt.blast.03.i.cil-2.c[65397,65410] [2022-01-31 23:56:15,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:56:15,087 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:56:15,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:56:15 WrapperNode [2022-01-31 23:56:15,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:56:15,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:56:15,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:56:15,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:56:15,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:56:15" (1/1) ... [2022-01-31 23:56:15,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:56:15" (1/1) ... [2022-01-31 23:56:15,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:56:15" (1/1) ... [2022-01-31 23:56:15,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:56:15" (1/1) ... [2022-01-31 23:56:15,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:56:15" (1/1) ... [2022-01-31 23:56:15,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:56:15" (1/1) ... [2022-01-31 23:56:15,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:56:15" (1/1) ... [2022-01-31 23:56:15,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:56:15,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:56:15,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:56:15,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:56:15,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:56:15" (1/1) ... [2022-01-31 23:56:15,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:56:15,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:56:15,243 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) [2022-01-31 23:56:15,261 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 [2022-01-31 23:56:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:56:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:56:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:56:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-01-31 23:56:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-01-31 23:56:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:56:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-01-31 23:56:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-01-31 23:56:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-01-31 23:56:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-01-31 23:56:15,286 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:56:15,286 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:56:15,287 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:56:15,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:56:15,287 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-01-31 23:56:15,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 23:56:15,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 23:56:15,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 23:56:15,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-01-31 23:56:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-01-31 23:56:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-01-31 23:56:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-01-31 23:56:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-01-31 23:56:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-01-31 23:56:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-01-31 23:56:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-31 23:56:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:56:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-31 23:56:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:56:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-31 23:56:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:56:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-01-31 23:56:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-01-31 23:56:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:56:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:56:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:56:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-01-31 23:56:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-01-31 23:56:15,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-01-31 23:56:15,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-01-31 23:56:15,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:56:15,479 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:56:15,480 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:56:17,803 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 23:56:18,089 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-01-31 23:56:18,089 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-01-31 23:56:18,099 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:56:18,106 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:56:18,106 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 23:56:18,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:56:18 BoogieIcfgContainer [2022-01-31 23:56:18,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:56:18,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:56:18,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:56:18,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:56:18,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:56:14" (1/3) ... [2022-01-31 23:56:18,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5953c9ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:56:18, skipping insertion in model container [2022-01-31 23:56:18,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:56:15" (2/3) ... [2022-01-31 23:56:18,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5953c9ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:56:18, skipping insertion in model container [2022-01-31 23:56:18,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:56:18" (3/3) ... [2022-01-31 23:56:18,114 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.03.i.cil-2.c [2022-01-31 23:56:18,118 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:56:18,118 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:56:18,151 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:56:18,156 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=QVASR [2022-01-31 23:56:18,157 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:56:18,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 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) [2022-01-31 23:56:18,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-31 23:56:18,177 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:56:18,177 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:56:18,178 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:56:18,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:56:18,182 INFO L85 PathProgramCache]: Analyzing trace with hash -22644822, now seen corresponding path program 1 times [2022-01-31 23:56:18,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:56:18,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1848180042] [2022-01-31 23:56:18,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:56:18,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:56:18,238 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:56:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:56:18,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:56:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:56:18,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:56:18,792 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:56:18,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1848180042] [2022-01-31 23:56:18,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1848180042] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:56:18,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:56:18,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:56:18,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736858869] [2022-01-31 23:56:18,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:56:18,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:56:18,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:56:18,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:56:18,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:56:18,823 INFO L87 Difference]: Start difference. First operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 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 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:56:20,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:56:21,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:56:21,270 INFO L93 Difference]: Finished difference Result 267 states and 442 transitions. [2022-01-31 23:56:21,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:56:21,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-01-31 23:56:21,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:56:21,281 INFO L225 Difference]: With dead ends: 267 [2022-01-31 23:56:21,282 INFO L226 Difference]: Without dead ends: 122 [2022-01-31 23:56:21,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:56:21,292 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 7 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:56:21,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 555 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:56:21,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-01-31 23:56:21,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-01-31 23:56:21,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 116 states have (on average 1.5) internal successors, (174), 116 states have internal predecessors, (174), 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) [2022-01-31 23:56:21,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 178 transitions. [2022-01-31 23:56:21,345 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 178 transitions. Word has length 30 [2022-01-31 23:56:21,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:56:21,346 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 178 transitions. [2022-01-31 23:56:21,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:56:21,346 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 178 transitions. [2022-01-31 23:56:21,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-31 23:56:21,349 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:56:21,349 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-31 23:56:21,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:56:21,350 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:56:21,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:56:21,351 INFO L85 PathProgramCache]: Analyzing trace with hash 868047042, now seen corresponding path program 1 times [2022-01-31 23:56:21,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:56:21,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [598023599] [2022-01-31 23:56:21,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:56:21,381 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:56:21,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:56:21,385 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:56:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:56:21,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:56:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:56:21,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:56:21,678 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:56:21,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [598023599] [2022-01-31 23:56:21,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [598023599] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:56:21,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:56:21,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:56:21,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594622693] [2022-01-31 23:56:21,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:56:21,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:56:21,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:56:21,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:56:21,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:56:21,681 INFO L87 Difference]: Start difference. First operand 121 states and 178 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:56:23,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:56:23,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:56:23,994 INFO L93 Difference]: Finished difference Result 327 states and 490 transitions. [2022-01-31 23:56:23,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 23:56:23,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-01-31 23:56:23,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:56:23,998 INFO L225 Difference]: With dead ends: 327 [2022-01-31 23:56:23,998 INFO L226 Difference]: Without dead ends: 222 [2022-01-31 23:56:23,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:56:24,000 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 124 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:56:24,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 319 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 190 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:56:24,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-01-31 23:56:24,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2022-01-31 23:56:24,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.4838709677419355) internal successors, (322), 217 states have internal predecessors, (322), 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) [2022-01-31 23:56:24,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 326 transitions. [2022-01-31 23:56:24,030 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 326 transitions. Word has length 44 [2022-01-31 23:56:24,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:56:24,031 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 326 transitions. [2022-01-31 23:56:24,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:56:24,031 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 326 transitions. [2022-01-31 23:56:24,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-31 23:56:24,039 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:56:24,039 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:56:24,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 23:56:24,040 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:56:24,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:56:24,040 INFO L85 PathProgramCache]: Analyzing trace with hash -446115060, now seen corresponding path program 1 times [2022-01-31 23:56:24,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:56:24,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116158755] [2022-01-31 23:56:24,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:56:24,059 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:56:24,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:56:24,064 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:56:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:56:24,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:56:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:56:24,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:56:24,361 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:56:24,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [116158755] [2022-01-31 23:56:24,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [116158755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:56:24,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:56:24,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:56:24,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445690154] [2022-01-31 23:56:24,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:56:24,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:56:24,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:56:24,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:56:24,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:56:24,364 INFO L87 Difference]: Start difference. First operand 222 states and 326 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:56:26,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:56:26,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:56:26,848 INFO L93 Difference]: Finished difference Result 611 states and 908 transitions. [2022-01-31 23:56:26,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:56:26,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 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 59 [2022-01-31 23:56:26,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:56:26,851 INFO L225 Difference]: With dead ends: 611 [2022-01-31 23:56:26,851 INFO L226 Difference]: Without dead ends: 405 [2022-01-31 23:56:26,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:56:26,854 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 106 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:56:26,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 279 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:56:26,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-01-31 23:56:26,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 270. [2022-01-31 23:56:26,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 265 states have (on average 1.5320754716981133) internal successors, (406), 265 states have internal predecessors, (406), 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) [2022-01-31 23:56:26,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 410 transitions. [2022-01-31 23:56:26,878 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 410 transitions. Word has length 59 [2022-01-31 23:56:26,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:56:26,878 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 410 transitions. [2022-01-31 23:56:26,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:56:26,878 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 410 transitions. [2022-01-31 23:56:26,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-31 23:56:26,879 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:56:26,880 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:56:26,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 23:56:26,880 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:56:26,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:56:26,880 INFO L85 PathProgramCache]: Analyzing trace with hash -949350737, now seen corresponding path program 1 times [2022-01-31 23:56:26,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:56:26,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514223432] [2022-01-31 23:56:26,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:56:26,897 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:56:26,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:56:26,903 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:56:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:56:27,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:56:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:56:27,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:56:27,100 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:56:27,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514223432] [2022-01-31 23:56:27,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1514223432] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:56:27,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:56:27,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:56:27,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588329895] [2022-01-31 23:56:27,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:56:27,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:56:27,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:56:27,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:56:27,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:56:27,102 INFO L87 Difference]: Start difference. First operand 270 states and 410 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:56:29,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:56:29,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:56:29,533 INFO L93 Difference]: Finished difference Result 435 states and 665 transitions. [2022-01-31 23:56:29,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:56:29,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 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 60 [2022-01-31 23:56:29,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:56:29,536 INFO L225 Difference]: With dead ends: 435 [2022-01-31 23:56:29,536 INFO L226 Difference]: Without dead ends: 306 [2022-01-31 23:56:29,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:56:29,542 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 33 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:56:29,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 486 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 360 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:56:29,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-01-31 23:56:29,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 288. [2022-01-31 23:56:29,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.540636042402827) internal successors, (436), 283 states have internal predecessors, (436), 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) [2022-01-31 23:56:29,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 440 transitions. [2022-01-31 23:56:29,561 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 440 transitions. Word has length 60 [2022-01-31 23:56:29,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:56:29,562 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 440 transitions. [2022-01-31 23:56:29,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:56:29,562 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 440 transitions. [2022-01-31 23:56:29,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-31 23:56:29,563 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:56:29,563 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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] [2022-01-31 23:56:29,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 23:56:29,563 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:56:29,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:56:29,564 INFO L85 PathProgramCache]: Analyzing trace with hash -195464169, now seen corresponding path program 2 times [2022-01-31 23:56:29,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:56:29,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655414531] [2022-01-31 23:56:29,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:56:38,454 WARN L228 SmtUtils]: Spent 8.89s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 23:56:43,567 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:56:43,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:56:43,572 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:56:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:56:43,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:56:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:56:43,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:56:43,766 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:56:43,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [655414531] [2022-01-31 23:56:43,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [655414531] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:56:43,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:56:43,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:56:43,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986729745] [2022-01-31 23:56:43,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:56:43,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:56:43,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:56:43,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:56:43,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:56:43,769 INFO L87 Difference]: Start difference. First operand 288 states and 440 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 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) [2022-01-31 23:56:45,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:56:46,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:56:46,206 INFO L93 Difference]: Finished difference Result 452 states and 693 transitions. [2022-01-31 23:56:46,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:56:46,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 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 74 [2022-01-31 23:56:46,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:56:46,208 INFO L225 Difference]: With dead ends: 452 [2022-01-31 23:56:46,208 INFO L226 Difference]: Without dead ends: 305 [2022-01-31 23:56:46,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:56:46,210 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 39 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:56:46,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 486 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:56:46,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-01-31 23:56:46,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 288. [2022-01-31 23:56:46,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.5371024734982333) internal successors, (435), 283 states have internal predecessors, (435), 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) [2022-01-31 23:56:46,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 439 transitions. [2022-01-31 23:56:46,224 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 439 transitions. Word has length 74 [2022-01-31 23:56:46,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:56:46,224 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 439 transitions. [2022-01-31 23:56:46,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 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) [2022-01-31 23:56:46,225 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 439 transitions. [2022-01-31 23:56:46,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-31 23:56:46,225 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:56:46,226 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-31 23:56:46,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 23:56:46,226 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:56:46,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:56:46,226 INFO L85 PathProgramCache]: Analyzing trace with hash -214119627, now seen corresponding path program 1 times [2022-01-31 23:56:46,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:56:46,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460007159] [2022-01-31 23:56:46,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:57:02,233 WARN L228 SmtUtils]: Spent 12.42s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 23:57:07,194 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:57:07,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:57:07,199 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:57:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:07,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:57:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:07,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:57:07,398 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:57:07,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460007159] [2022-01-31 23:57:07,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1460007159] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:57:07,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:57:07,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:57:07,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93326005] [2022-01-31 23:57:07,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:57:07,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:57:07,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:57:07,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:57:07,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:57:07,400 INFO L87 Difference]: Start difference. First operand 288 states and 439 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 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) [2022-01-31 23:57:09,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:57:09,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:57:09,779 INFO L93 Difference]: Finished difference Result 452 states and 691 transitions. [2022-01-31 23:57:09,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:57:09,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 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 74 [2022-01-31 23:57:09,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:57:09,781 INFO L225 Difference]: With dead ends: 452 [2022-01-31 23:57:09,781 INFO L226 Difference]: Without dead ends: 305 [2022-01-31 23:57:09,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:57:09,783 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 37 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:57:09,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 484 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:57:09,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-01-31 23:57:09,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 288. [2022-01-31 23:57:09,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.5335689045936396) internal successors, (434), 283 states have internal predecessors, (434), 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) [2022-01-31 23:57:09,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 438 transitions. [2022-01-31 23:57:09,794 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 438 transitions. Word has length 74 [2022-01-31 23:57:09,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:57:09,795 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 438 transitions. [2022-01-31 23:57:09,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 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) [2022-01-31 23:57:09,796 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 438 transitions. [2022-01-31 23:57:09,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-31 23:57:09,797 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:57:09,797 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2022-01-31 23:57:09,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 23:57:09,798 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:57:09,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:57:09,798 INFO L85 PathProgramCache]: Analyzing trace with hash -515982990, now seen corresponding path program 1 times [2022-01-31 23:57:09,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:57:09,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [572868489] [2022-01-31 23:57:09,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:57:17,434 WARN L228 SmtUtils]: Spent 7.63s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 23:57:25,954 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:57:25,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:57:25,959 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:57:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:26,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:57:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:26,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:57:26,149 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:57:26,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [572868489] [2022-01-31 23:57:26,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [572868489] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:57:26,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:57:26,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:57:26,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182646603] [2022-01-31 23:57:26,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:57:26,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:57:26,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:57:26,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:57:26,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:57:26,151 INFO L87 Difference]: Start difference. First operand 288 states and 438 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:57:28,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:57:28,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:57:28,543 INFO L93 Difference]: Finished difference Result 452 states and 689 transitions. [2022-01-31 23:57:28,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:57:28,544 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 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 75 [2022-01-31 23:57:28,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:57:28,545 INFO L225 Difference]: With dead ends: 452 [2022-01-31 23:57:28,546 INFO L226 Difference]: Without dead ends: 305 [2022-01-31 23:57:28,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:57:28,547 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 35 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:57:28,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 482 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 351 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:57:28,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-01-31 23:57:28,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 288. [2022-01-31 23:57:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.530035335689046) internal successors, (433), 283 states have internal predecessors, (433), 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) [2022-01-31 23:57:28,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 437 transitions. [2022-01-31 23:57:28,560 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 437 transitions. Word has length 75 [2022-01-31 23:57:28,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:57:28,560 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 437 transitions. [2022-01-31 23:57:28,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:57:28,560 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 437 transitions. [2022-01-31 23:57:28,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-31 23:57:28,561 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:57:28,561 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-01-31 23:57:28,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 23:57:28,562 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:57:28,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:57:28,562 INFO L85 PathProgramCache]: Analyzing trace with hash 470187034, now seen corresponding path program 1 times [2022-01-31 23:57:28,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:57:28,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1189410425] [2022-01-31 23:57:28,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:57:39,575 WARN L228 SmtUtils]: Spent 7.16s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 23:57:43,921 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:57:43,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:57:43,927 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:57:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:44,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:57:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:57:44,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:57:44,091 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:57:44,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1189410425] [2022-01-31 23:57:44,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1189410425] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:57:44,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:57:44,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:57:44,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070093793] [2022-01-31 23:57:44,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:57:44,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:57:44,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:57:44,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:57:44,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:57:44,095 INFO L87 Difference]: Start difference. First operand 288 states and 437 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:57:46,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:57:46,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:57:46,534 INFO L93 Difference]: Finished difference Result 743 states and 1130 transitions. [2022-01-31 23:57:46,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:57:46,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 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 [2022-01-31 23:57:46,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:57:46,536 INFO L225 Difference]: With dead ends: 743 [2022-01-31 23:57:46,537 INFO L226 Difference]: Without dead ends: 471 [2022-01-31 23:57:46,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:57:46,538 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 117 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:57:46,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:57:46,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-01-31 23:57:46,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 316. [2022-01-31 23:57:46,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.5241157556270097) internal successors, (474), 311 states have internal predecessors, (474), 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) [2022-01-31 23:57:46,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 478 transitions. [2022-01-31 23:57:46,552 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 478 transitions. Word has length 76 [2022-01-31 23:57:46,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:57:46,553 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 478 transitions. [2022-01-31 23:57:46,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:57:46,553 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 478 transitions. [2022-01-31 23:57:46,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-31 23:57:46,554 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:57:46,554 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:57:46,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 23:57:46,554 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:57:46,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:57:46,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1564280905, now seen corresponding path program 1 times [2022-01-31 23:57:46,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:57:46,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406388573] [2022-01-31 23:57:46,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:01,243 WARN L228 SmtUtils]: Spent 10.78s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 23:58:07,723 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:07,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:07,729 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:07,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:07,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:07,883 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:07,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [406388573] [2022-01-31 23:58:07,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [406388573] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:07,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:07,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:07,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233930373] [2022-01-31 23:58:07,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:07,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:07,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:07,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:07,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:07,884 INFO L87 Difference]: Start difference. First operand 316 states and 478 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:09,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:58:10,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:10,292 INFO L93 Difference]: Finished difference Result 771 states and 1166 transitions. [2022-01-31 23:58:10,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:10,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-01-31 23:58:10,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:10,295 INFO L225 Difference]: With dead ends: 771 [2022-01-31 23:58:10,295 INFO L226 Difference]: Without dead ends: 471 [2022-01-31 23:58:10,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:10,296 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 115 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:10,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:10,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-01-31 23:58:10,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 318. [2022-01-31 23:58:10,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 313 states have (on average 1.511182108626198) internal successors, (473), 313 states have internal predecessors, (473), 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) [2022-01-31 23:58:10,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 477 transitions. [2022-01-31 23:58:10,313 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 477 transitions. Word has length 77 [2022-01-31 23:58:10,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:10,313 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 477 transitions. [2022-01-31 23:58:10,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:10,313 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 477 transitions. [2022-01-31 23:58:10,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-31 23:58:10,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:10,314 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 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] [2022-01-31 23:58:10,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 23:58:10,314 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:10,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:10,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1810920690, now seen corresponding path program 1 times [2022-01-31 23:58:10,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:10,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262463163] [2022-01-31 23:58:10,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:10,332 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:10,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:10,339 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:10,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:10,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:10,499 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:10,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262463163] [2022-01-31 23:58:10,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1262463163] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:10,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:10,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:58:10,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229957890] [2022-01-31 23:58:10,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:10,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:58:10,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:10,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:58:10,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:58:10,501 INFO L87 Difference]: Start difference. First operand 318 states and 477 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) [2022-01-31 23:58:12,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:58:12,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:12,915 INFO L93 Difference]: Finished difference Result 639 states and 967 transitions. [2022-01-31 23:58:12,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 23:58:12,915 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 78 [2022-01-31 23:58:12,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:12,917 INFO L225 Difference]: With dead ends: 639 [2022-01-31 23:58:12,917 INFO L226 Difference]: Without dead ends: 477 [2022-01-31 23:58:12,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:58:12,918 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 125 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:12,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 477 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 339 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:12,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-01-31 23:58:12,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 477. [2022-01-31 23:58:12,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 472 states have (on average 1.50635593220339) internal successors, (711), 472 states have internal predecessors, (711), 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) [2022-01-31 23:58:12,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 715 transitions. [2022-01-31 23:58:12,962 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 715 transitions. Word has length 78 [2022-01-31 23:58:12,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:12,962 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 715 transitions. [2022-01-31 23:58:12,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:12,962 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 715 transitions. [2022-01-31 23:58:12,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-31 23:58:12,963 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:12,963 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 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] [2022-01-31 23:58:12,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 23:58:12,964 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:12,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:12,964 INFO L85 PathProgramCache]: Analyzing trace with hash -297427541, now seen corresponding path program 1 times [2022-01-31 23:58:12,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:12,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309714446] [2022-01-31 23:58:12,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:12,982 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:12,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:12,990 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:13,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:13,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:13,150 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:13,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309714446] [2022-01-31 23:58:13,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [309714446] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:13,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:13,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:58:13,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200570640] [2022-01-31 23:58:13,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:13,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:58:13,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:13,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:58:13,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:58:13,152 INFO L87 Difference]: Start difference. First operand 477 states and 715 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) [2022-01-31 23:58:15,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:58:15,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:15,446 INFO L93 Difference]: Finished difference Result 822 states and 1233 transitions. [2022-01-31 23:58:15,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 23:58:15,446 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 79 [2022-01-31 23:58:15,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:15,448 INFO L225 Difference]: With dead ends: 822 [2022-01-31 23:58:15,448 INFO L226 Difference]: Without dead ends: 501 [2022-01-31 23:58:15,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:58:15,450 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 15 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:15,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 359 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 23:58:15,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-01-31 23:58:15,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2022-01-31 23:58:15,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 496 states have (on average 1.497983870967742) internal successors, (743), 496 states have internal predecessors, (743), 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) [2022-01-31 23:58:15,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 747 transitions. [2022-01-31 23:58:15,472 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 747 transitions. Word has length 79 [2022-01-31 23:58:15,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:15,473 INFO L470 AbstractCegarLoop]: Abstraction has 501 states and 747 transitions. [2022-01-31 23:58:15,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:15,473 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 747 transitions. [2022-01-31 23:58:15,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-31 23:58:15,474 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:15,474 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 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] [2022-01-31 23:58:15,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 23:58:15,475 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:15,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:15,475 INFO L85 PathProgramCache]: Analyzing trace with hash -265685749, now seen corresponding path program 1 times [2022-01-31 23:58:15,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:15,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891660178] [2022-01-31 23:58:15,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:15,499 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:15,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:15,507 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:15,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:15,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:15,680 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:15,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1891660178] [2022-01-31 23:58:15,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1891660178] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:15,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:15,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:58:15,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697759373] [2022-01-31 23:58:15,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:15,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:58:15,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:15,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:58:15,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:58:15,682 INFO L87 Difference]: Start difference. First operand 501 states and 747 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:17,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:58:18,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:18,171 INFO L93 Difference]: Finished difference Result 989 states and 1483 transitions. [2022-01-31 23:58:18,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 23:58:18,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-01-31 23:58:18,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:18,174 INFO L225 Difference]: With dead ends: 989 [2022-01-31 23:58:18,174 INFO L226 Difference]: Without dead ends: 644 [2022-01-31 23:58:18,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:58:18,176 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 125 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:18,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 476 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 23:58:18,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2022-01-31 23:58:18,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 644. [2022-01-31 23:58:18,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 639 states have (on average 1.4976525821596245) internal successors, (957), 639 states have internal predecessors, (957), 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) [2022-01-31 23:58:18,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 961 transitions. [2022-01-31 23:58:18,201 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 961 transitions. Word has length 98 [2022-01-31 23:58:18,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:18,202 INFO L470 AbstractCegarLoop]: Abstraction has 644 states and 961 transitions. [2022-01-31 23:58:18,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:18,202 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 961 transitions. [2022-01-31 23:58:18,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-31 23:58:18,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:18,204 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 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] [2022-01-31 23:58:18,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 23:58:18,204 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:18,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:18,204 INFO L85 PathProgramCache]: Analyzing trace with hash -120492913, now seen corresponding path program 1 times [2022-01-31 23:58:18,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:18,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139404712] [2022-01-31 23:58:18,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:18,233 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:18,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:18,241 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:18,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:18,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:18,448 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:18,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139404712] [2022-01-31 23:58:18,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1139404712] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:18,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:18,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:58:18,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480366543] [2022-01-31 23:58:18,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:18,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:58:18,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:18,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:58:18,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:58:18,450 INFO L87 Difference]: Start difference. First operand 644 states and 961 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:20,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:58:20,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:20,897 INFO L93 Difference]: Finished difference Result 1289 states and 1932 transitions. [2022-01-31 23:58:20,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 23:58:20,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 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 118 [2022-01-31 23:58:20,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:20,901 INFO L225 Difference]: With dead ends: 1289 [2022-01-31 23:58:20,901 INFO L226 Difference]: Without dead ends: 801 [2022-01-31 23:58:20,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:58:20,903 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 124 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:20,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 474 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 336 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:20,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2022-01-31 23:58:20,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 801. [2022-01-31 23:58:20,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 796 states have (on average 1.4974874371859297) internal successors, (1192), 796 states have internal predecessors, (1192), 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) [2022-01-31 23:58:20,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1196 transitions. [2022-01-31 23:58:20,934 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1196 transitions. Word has length 118 [2022-01-31 23:58:20,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:20,935 INFO L470 AbstractCegarLoop]: Abstraction has 801 states and 1196 transitions. [2022-01-31 23:58:20,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:20,935 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1196 transitions. [2022-01-31 23:58:20,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-01-31 23:58:20,937 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:20,937 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:20,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 23:58:20,937 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:20,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:20,938 INFO L85 PathProgramCache]: Analyzing trace with hash 447567790, now seen corresponding path program 1 times [2022-01-31 23:58:20,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:20,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1452912971] [2022-01-31 23:58:20,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:32,646 WARN L228 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 23:58:38,116 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:38,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:38,123 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:38,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:38,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:38,318 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:38,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1452912971] [2022-01-31 23:58:38,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1452912971] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:38,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:38,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:38,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855147448] [2022-01-31 23:58:38,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:38,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:38,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:38,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:38,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:38,320 INFO L87 Difference]: Start difference. First operand 801 states and 1196 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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) [2022-01-31 23:58:40,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:58:40,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:58:40,751 INFO L93 Difference]: Finished difference Result 1955 states and 2906 transitions. [2022-01-31 23:58:40,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:58:40,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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 138 [2022-01-31 23:58:40,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:58:40,756 INFO L225 Difference]: With dead ends: 1955 [2022-01-31 23:58:40,756 INFO L226 Difference]: Without dead ends: 1170 [2022-01-31 23:58:40,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:58:40,759 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 109 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:58:40,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:58:40,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2022-01-31 23:58:40,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 813. [2022-01-31 23:58:40,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 808 states have (on average 1.493811881188119) internal successors, (1207), 808 states have internal predecessors, (1207), 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) [2022-01-31 23:58:40,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1211 transitions. [2022-01-31 23:58:40,799 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1211 transitions. Word has length 138 [2022-01-31 23:58:40,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:58:40,799 INFO L470 AbstractCegarLoop]: Abstraction has 813 states and 1211 transitions. [2022-01-31 23:58:40,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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) [2022-01-31 23:58:40,800 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1211 transitions. [2022-01-31 23:58:40,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-01-31 23:58:40,801 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:58:40,802 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:58:40,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 23:58:40,802 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:58:40,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:58:40,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1088247307, now seen corresponding path program 1 times [2022-01-31 23:58:40,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:58:40,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440839017] [2022-01-31 23:58:40,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:58:52,625 WARN L228 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 23:58:57,578 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:58:57,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:58:57,586 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:58:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:57,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:58:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:58:57,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:58:57,786 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:58:57,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440839017] [2022-01-31 23:58:57,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1440839017] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:58:57,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:58:57,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:58:57,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583015483] [2022-01-31 23:58:57,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:58:57,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:58:57,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:58:57,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:58:57,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:58:57,787 INFO L87 Difference]: Start difference. First operand 813 states and 1211 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:58:59,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:00,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:00,199 INFO L93 Difference]: Finished difference Result 1962 states and 2906 transitions. [2022-01-31 23:59:00,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:00,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 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 139 [2022-01-31 23:59:00,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:00,204 INFO L225 Difference]: With dead ends: 1962 [2022-01-31 23:59:00,204 INFO L226 Difference]: Without dead ends: 1165 [2022-01-31 23:59:00,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:00,207 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 110 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:00,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 282 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 23:59:00,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2022-01-31 23:59:00,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 817. [2022-01-31 23:59:00,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 812 states have (on average 1.4852216748768472) internal successors, (1206), 812 states have internal predecessors, (1206), 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) [2022-01-31 23:59:00,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1210 transitions. [2022-01-31 23:59:00,251 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1210 transitions. Word has length 139 [2022-01-31 23:59:00,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:00,251 INFO L470 AbstractCegarLoop]: Abstraction has 817 states and 1210 transitions. [2022-01-31 23:59:00,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:00,251 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1210 transitions. [2022-01-31 23:59:00,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-31 23:59:00,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:00,253 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 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] [2022-01-31 23:59:00,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 23:59:00,254 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:00,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:00,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1841451968, now seen corresponding path program 1 times [2022-01-31 23:59:00,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:00,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913003448] [2022-01-31 23:59:00,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:13,500 WARN L228 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 23:59:18,990 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:18,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:18,999 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:19,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:19,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:19,190 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:19,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913003448] [2022-01-31 23:59:19,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1913003448] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:19,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:19,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:19,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305633679] [2022-01-31 23:59:19,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:19,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:19,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:19,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:19,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:19,192 INFO L87 Difference]: Start difference. First operand 817 states and 1210 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:21,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:21,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:21,713 INFO L93 Difference]: Finished difference Result 1747 states and 2577 transitions. [2022-01-31 23:59:21,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:21,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 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 153 [2022-01-31 23:59:21,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:21,718 INFO L225 Difference]: With dead ends: 1747 [2022-01-31 23:59:21,718 INFO L226 Difference]: Without dead ends: 1088 [2022-01-31 23:59:21,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:21,720 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 95 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:21,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 561 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 529 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 23:59:21,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-01-31 23:59:21,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 817. [2022-01-31 23:59:21,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 812 states have (on average 1.480295566502463) internal successors, (1202), 812 states have internal predecessors, (1202), 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) [2022-01-31 23:59:21,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1206 transitions. [2022-01-31 23:59:21,767 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1206 transitions. Word has length 153 [2022-01-31 23:59:21,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:21,767 INFO L470 AbstractCegarLoop]: Abstraction has 817 states and 1206 transitions. [2022-01-31 23:59:21,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:21,767 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1206 transitions. [2022-01-31 23:59:21,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-31 23:59:21,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:21,769 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:21,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 23:59:21,770 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:21,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:21,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1264230179, now seen corresponding path program 1 times [2022-01-31 23:59:21,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:21,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793833454] [2022-01-31 23:59:21,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:35,915 WARN L228 SmtUtils]: Spent 9.86s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 23:59:42,295 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:42,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:42,307 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:42,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:42,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:42,508 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:42,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [793833454] [2022-01-31 23:59:42,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [793833454] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:42,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:42,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:42,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077341162] [2022-01-31 23:59:42,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:42,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:42,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:42,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:42,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:42,510 INFO L87 Difference]: Start difference. First operand 817 states and 1206 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:44,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 23:59:45,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:59:45,039 INFO L93 Difference]: Finished difference Result 1944 states and 2866 transitions. [2022-01-31 23:59:45,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:59:45,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 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 154 [2022-01-31 23:59:45,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:59:45,043 INFO L225 Difference]: With dead ends: 1944 [2022-01-31 23:59:45,043 INFO L226 Difference]: Without dead ends: 1285 [2022-01-31 23:59:45,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 23:59:45,045 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 111 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 23:59:45,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 496 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 23:59:45,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2022-01-31 23:59:45,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 902. [2022-01-31 23:59:45,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 897 states have (on average 1.4749163879598661) internal successors, (1323), 897 states have internal predecessors, (1323), 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) [2022-01-31 23:59:45,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1327 transitions. [2022-01-31 23:59:45,121 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1327 transitions. Word has length 154 [2022-01-31 23:59:45,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:59:45,122 INFO L470 AbstractCegarLoop]: Abstraction has 902 states and 1327 transitions. [2022-01-31 23:59:45,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 23:59:45,122 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1327 transitions. [2022-01-31 23:59:45,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-01-31 23:59:45,124 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:59:45,124 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:59:45,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 23:59:45,125 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:59:45,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:59:45,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1984673688, now seen corresponding path program 2 times [2022-01-31 23:59:45,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:59:45,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671760880] [2022-01-31 23:59:45,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:59:53,888 WARN L228 SmtUtils]: Spent 7.34s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-01-31 23:59:59,323 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-01-31 23:59:59,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:59:59,332 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:59:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:59,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:59:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:59:59,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:59:59,520 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:59:59,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671760880] [2022-01-31 23:59:59,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [671760880] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:59:59,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:59:59,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 23:59:59,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541140243] [2022-01-31 23:59:59,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:59:59,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 23:59:59,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:59:59,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 23:59:59,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:59:59,522 INFO L87 Difference]: Start difference. First operand 902 states and 1327 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:01,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:01,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:00:01,959 INFO L93 Difference]: Finished difference Result 2131 states and 3125 transitions. [2022-02-01 00:00:01,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:00:01,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 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 167 [2022-02-01 00:00:01,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:00:01,963 INFO L225 Difference]: With dead ends: 2131 [2022-02-01 00:00:01,963 INFO L226 Difference]: Without dead ends: 1245 [2022-02-01 00:00:01,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:00:01,968 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 109 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:00:01,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 300 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 381 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:00:01,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2022-02-01 00:00:02,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 902. [2022-02-01 00:00:02,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 897 states have (on average 1.459308807134894) internal successors, (1309), 897 states have internal predecessors, (1309), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:02,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1313 transitions. [2022-02-01 00:00:02,056 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1313 transitions. Word has length 167 [2022-02-01 00:00:02,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:00:02,057 INFO L470 AbstractCegarLoop]: Abstraction has 902 states and 1313 transitions. [2022-02-01 00:00:02,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:02,057 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1313 transitions. [2022-02-01 00:00:02,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-02-01 00:00:02,059 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:00:02,059 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:00:02,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-01 00:00:02,060 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:00:02,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:00:02,060 INFO L85 PathProgramCache]: Analyzing trace with hash -966240250, now seen corresponding path program 1 times [2022-02-01 00:00:02,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:00:02,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403498696] [2022-02-01 00:00:02,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:00:16,890 WARN L228 SmtUtils]: Spent 9.13s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:00:23,822 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:00:23,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:00:23,834 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:00:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:24,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:00:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:24,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:00:24,029 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:00:24,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1403498696] [2022-02-01 00:00:24,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1403498696] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:00:24,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:00:24,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:00:24,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349204757] [2022-02-01 00:00:24,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:00:24,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:00:24,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:00:24,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:00:24,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:00:24,030 INFO L87 Difference]: Start difference. First operand 902 states and 1313 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:26,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:26,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:00:26,599 INFO L93 Difference]: Finished difference Result 2043 states and 2979 transitions. [2022-02-01 00:00:26,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:00:26,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 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 167 [2022-02-01 00:00:26,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:00:26,602 INFO L225 Difference]: With dead ends: 2043 [2022-02-01 00:00:26,602 INFO L226 Difference]: Without dead ends: 1157 [2022-02-01 00:00:26,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:00:26,604 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 94 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-01 00:00:26,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 551 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-01 00:00:26,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2022-02-01 00:00:26,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 902. [2022-02-01 00:00:26,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 897 states have (on average 1.4548494983277591) internal successors, (1305), 897 states have internal predecessors, (1305), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:26,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1309 transitions. [2022-02-01 00:00:26,668 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1309 transitions. Word has length 167 [2022-02-01 00:00:26,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:00:26,669 INFO L470 AbstractCegarLoop]: Abstraction has 902 states and 1309 transitions. [2022-02-01 00:00:26,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:26,669 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1309 transitions. [2022-02-01 00:00:26,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-02-01 00:00:26,672 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:00:26,672 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:00:26,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-01 00:00:26,672 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:00:26,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:00:26,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1053065449, now seen corresponding path program 1 times [2022-02-01 00:00:26,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:00:26,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [665030520] [2022-02-01 00:00:26,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:00:40,702 WARN L228 SmtUtils]: Spent 12.48s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:00:50,564 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:00:50,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:00:50,576 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:00:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:50,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:00:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:00:50,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:00:50,780 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:00:50,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [665030520] [2022-02-01 00:00:50,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [665030520] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:00:50,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:00:50,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:00:50,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108958633] [2022-02-01 00:00:50,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:00:50,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:00:50,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:00:50,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:00:50,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:00:50,782 INFO L87 Difference]: Start difference. First operand 902 states and 1309 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:52,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:00:53,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:00:53,255 INFO L93 Difference]: Finished difference Result 2132 states and 3090 transitions. [2022-02-01 00:00:53,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:00:53,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2022-02-01 00:00:53,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:00:53,258 INFO L225 Difference]: With dead ends: 2132 [2022-02-01 00:00:53,259 INFO L226 Difference]: Without dead ends: 1246 [2022-02-01 00:00:53,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:00:53,267 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 115 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:00:53,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 304 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:00:53,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2022-02-01 00:00:53,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 902. [2022-02-01 00:00:53,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 897 states have (on average 1.439241917502787) internal successors, (1291), 897 states have internal predecessors, (1291), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:53,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1295 transitions. [2022-02-01 00:00:53,344 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1295 transitions. Word has length 168 [2022-02-01 00:00:53,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:00:53,344 INFO L470 AbstractCegarLoop]: Abstraction has 902 states and 1295 transitions. [2022-02-01 00:00:53,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:00:53,344 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1295 transitions. [2022-02-01 00:00:53,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-01 00:00:53,347 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:00:53,347 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:00:53,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-01 00:00:53,347 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:00:53,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:00:53,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1963877489, now seen corresponding path program 1 times [2022-02-01 00:00:53,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:00:53,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280433832] [2022-02-01 00:00:53,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:01:13,615 WARN L228 SmtUtils]: Spent 14.71s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:01:20,856 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:01:20,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:01:20,871 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:01:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:21,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:01:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:21,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:01:21,075 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:01:21,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [280433832] [2022-02-01 00:01:21,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [280433832] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:01:21,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:01:21,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:01:21,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109374558] [2022-02-01 00:01:21,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:01:21,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:01:21,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:01:21,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:01:21,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:01:21,076 INFO L87 Difference]: Start difference. First operand 902 states and 1295 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:23,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:23,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:01:23,528 INFO L93 Difference]: Finished difference Result 2232 states and 3206 transitions. [2022-02-01 00:01:23,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:01:23,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 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 171 [2022-02-01 00:01:23,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:01:23,532 INFO L225 Difference]: With dead ends: 2232 [2022-02-01 00:01:23,532 INFO L226 Difference]: Without dead ends: 1346 [2022-02-01 00:01:23,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:01:23,534 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 107 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:01:23,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 290 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:01:23,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2022-02-01 00:01:23,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 990. [2022-02-01 00:01:23,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 985 states have (on average 1.4274111675126904) internal successors, (1406), 985 states have internal predecessors, (1406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:23,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1410 transitions. [2022-02-01 00:01:23,636 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1410 transitions. Word has length 171 [2022-02-01 00:01:23,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:01:23,636 INFO L470 AbstractCegarLoop]: Abstraction has 990 states and 1410 transitions. [2022-02-01 00:01:23,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:23,637 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1410 transitions. [2022-02-01 00:01:23,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-02-01 00:01:23,639 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:01:23,639 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 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] [2022-02-01 00:01:23,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-01 00:01:23,639 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:01:23,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:01:23,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1766321522, now seen corresponding path program 1 times [2022-02-01 00:01:23,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:01:23,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470015560] [2022-02-01 00:01:23,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:01:39,655 WARN L228 SmtUtils]: Spent 10.39s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:01:45,973 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:01:45,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:01:45,984 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:01:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:46,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:01:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:01:46,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:01:46,175 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:01:46,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1470015560] [2022-02-01 00:01:46,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1470015560] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:01:46,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:01:46,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:01:46,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870088693] [2022-02-01 00:01:46,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:01:46,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:01:46,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:01:46,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:01:46,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:01:46,177 INFO L87 Difference]: Start difference. First operand 990 states and 1410 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:48,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:01:48,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:01:48,645 INFO L93 Difference]: Finished difference Result 2299 states and 3278 transitions. [2022-02-01 00:01:48,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:01:48,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 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 172 [2022-02-01 00:01:48,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:01:48,651 INFO L225 Difference]: With dead ends: 2299 [2022-02-01 00:01:48,651 INFO L226 Difference]: Without dead ends: 1325 [2022-02-01 00:01:48,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:01:48,653 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 106 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:01:48,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 286 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:01:48,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2022-02-01 00:01:48,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 994. [2022-02-01 00:01:48,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 989 states have (on average 1.4206268958543984) internal successors, (1405), 989 states have internal predecessors, (1405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:48,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1409 transitions. [2022-02-01 00:01:48,731 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1409 transitions. Word has length 172 [2022-02-01 00:01:48,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:01:48,732 INFO L470 AbstractCegarLoop]: Abstraction has 994 states and 1409 transitions. [2022-02-01 00:01:48,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:01:48,732 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1409 transitions. [2022-02-01 00:01:48,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-01 00:01:48,734 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:01:48,734 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:01:48,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-01 00:01:48,735 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:01:48,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:01:48,735 INFO L85 PathProgramCache]: Analyzing trace with hash -311086484, now seen corresponding path program 1 times [2022-02-01 00:01:48,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:01:48,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379576030] [2022-02-01 00:01:48,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:02:08,326 WARN L228 SmtUtils]: Spent 12.97s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:02:16,165 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:02:16,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:02:16,176 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:02:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:16,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:02:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:16,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:02:16,344 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:02:16,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379576030] [2022-02-01 00:02:16,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [379576030] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:02:16,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:02:16,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:02:16,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787619207] [2022-02-01 00:02:16,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:02:16,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:02:16,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:02:16,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:02:16,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:02:16,346 INFO L87 Difference]: Start difference. First operand 994 states and 1409 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:18,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:18,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:02:18,720 INFO L93 Difference]: Finished difference Result 2010 states and 2849 transitions. [2022-02-01 00:02:18,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:02:18,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-02-01 00:02:18,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:02:18,724 INFO L225 Difference]: With dead ends: 2010 [2022-02-01 00:02:18,724 INFO L226 Difference]: Without dead ends: 1032 [2022-02-01 00:02:18,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:02:18,725 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 19 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:02:18,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 470 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-01 00:02:18,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2022-02-01 00:02:18,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 1006. [2022-02-01 00:02:18,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4235764235764237) internal successors, (1425), 1001 states have internal predecessors, (1425), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:18,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1429 transitions. [2022-02-01 00:02:18,807 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1429 transitions. Word has length 174 [2022-02-01 00:02:18,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:02:18,807 INFO L470 AbstractCegarLoop]: Abstraction has 1006 states and 1429 transitions. [2022-02-01 00:02:18,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:18,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1429 transitions. [2022-02-01 00:02:18,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-02-01 00:02:18,809 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:02:18,809 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 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] [2022-02-01 00:02:18,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-01 00:02:18,810 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:02:18,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:02:18,810 INFO L85 PathProgramCache]: Analyzing trace with hash 348895549, now seen corresponding path program 1 times [2022-02-01 00:02:18,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:02:18,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [530271279] [2022-02-01 00:02:18,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:02:32,622 WARN L228 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:02:39,476 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:02:39,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:02:39,487 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:02:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:39,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:02:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:02:39,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:02:39,714 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:02:39,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [530271279] [2022-02-01 00:02:39,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [530271279] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:02:39,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:02:39,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:02:39,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023835589] [2022-02-01 00:02:39,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:02:39,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:02:39,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:02:39,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:02:39,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:02:39,716 INFO L87 Difference]: Start difference. First operand 1006 states and 1429 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:41,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:02:42,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:02:42,104 INFO L93 Difference]: Finished difference Result 2063 states and 2919 transitions. [2022-02-01 00:02:42,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:02:42,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 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 175 [2022-02-01 00:02:42,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:02:42,108 INFO L225 Difference]: With dead ends: 2063 [2022-02-01 00:02:42,108 INFO L226 Difference]: Without dead ends: 1073 [2022-02-01 00:02:42,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:02:42,109 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 27 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:02:42,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 469 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-01 00:02:42,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-02-01 00:02:42,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1006. [2022-02-01 00:02:42,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4195804195804196) internal successors, (1421), 1001 states have internal predecessors, (1421), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:42,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1425 transitions. [2022-02-01 00:02:42,191 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1425 transitions. Word has length 175 [2022-02-01 00:02:42,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:02:42,191 INFO L470 AbstractCegarLoop]: Abstraction has 1006 states and 1425 transitions. [2022-02-01 00:02:42,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:02:42,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1425 transitions. [2022-02-01 00:02:42,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-02-01 00:02:42,193 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:02:42,193 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 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] [2022-02-01 00:02:42,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-01 00:02:42,194 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:02:42,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:02:42,194 INFO L85 PathProgramCache]: Analyzing trace with hash 208346939, now seen corresponding path program 1 times [2022-02-01 00:02:42,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:02:42,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009647748] [2022-02-01 00:02:42,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:03:01,830 WARN L228 SmtUtils]: Spent 14.17s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:03:08,489 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:03:08,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:03:08,502 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:03:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:03:08,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:03:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:03:08,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:03:08,706 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:03:08,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2009647748] [2022-02-01 00:03:08,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2009647748] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:03:08,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:03:08,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-01 00:03:08,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137009815] [2022-02-01 00:03:08,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:03:08,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-01 00:03:08,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:03:08,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-01 00:03:08,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:03:08,708 INFO L87 Difference]: Start difference. First operand 1006 states and 1425 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:10,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:03:11,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:03:11,466 INFO L93 Difference]: Finished difference Result 2783 states and 3949 transitions. [2022-02-01 00:03:11,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-01 00:03:11,466 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 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 175 [2022-02-01 00:03:11,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:03:11,473 INFO L225 Difference]: With dead ends: 2783 [2022-02-01 00:03:11,473 INFO L226 Difference]: Without dead ends: 1793 [2022-02-01 00:03:11,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-01 00:03:11,475 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 82 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-01 00:03:11,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 730 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 689 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-01 00:03:11,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2022-02-01 00:03:11,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1721. [2022-02-01 00:03:11,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1716 states have (on average 1.4306526806526807) internal successors, (2455), 1716 states have internal predecessors, (2455), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:11,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2459 transitions. [2022-02-01 00:03:11,601 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2459 transitions. Word has length 175 [2022-02-01 00:03:11,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:03:11,602 INFO L470 AbstractCegarLoop]: Abstraction has 1721 states and 2459 transitions. [2022-02-01 00:03:11,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:11,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2459 transitions. [2022-02-01 00:03:11,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-02-01 00:03:11,606 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:03:11,606 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:03:11,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-01 00:03:11,606 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:03:11,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:03:11,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1327621443, now seen corresponding path program 1 times [2022-02-01 00:03:11,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:03:11,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [54244440] [2022-02-01 00:03:11,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:03:26,963 WARN L228 SmtUtils]: Spent 9.46s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:03:33,478 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:03:33,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:03:33,490 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:03:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:03:33,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:03:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:03:33,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:03:33,706 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:03:33,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [54244440] [2022-02-01 00:03:33,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [54244440] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:03:33,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:03:33,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-01 00:03:33,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337439892] [2022-02-01 00:03:33,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:03:33,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-01 00:03:33,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:03:33,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-01 00:03:33,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-01 00:03:33,708 INFO L87 Difference]: Start difference. First operand 1721 states and 2459 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:35,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:03:36,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:03:36,312 INFO L93 Difference]: Finished difference Result 3472 states and 4954 transitions. [2022-02-01 00:03:36,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-01 00:03:36,313 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 1 states have call successors, (3), 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 189 [2022-02-01 00:03:36,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:03:36,317 INFO L225 Difference]: With dead ends: 3472 [2022-02-01 00:03:36,317 INFO L226 Difference]: Without dead ends: 1767 [2022-02-01 00:03:36,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-02-01 00:03:36,320 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 112 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:03:36,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 401 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 510 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:03:36,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2022-02-01 00:03:36,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1721. [2022-02-01 00:03:36,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1716 states have (on average 1.4195804195804196) internal successors, (2436), 1716 states have internal predecessors, (2436), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:36,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2440 transitions. [2022-02-01 00:03:36,500 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2440 transitions. Word has length 189 [2022-02-01 00:03:36,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:03:36,501 INFO L470 AbstractCegarLoop]: Abstraction has 1721 states and 2440 transitions. [2022-02-01 00:03:36,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:36,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2440 transitions. [2022-02-01 00:03:36,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-02-01 00:03:36,504 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:03:36,505 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 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] [2022-02-01 00:03:36,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-01 00:03:36,505 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:03:36,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:03:36,505 INFO L85 PathProgramCache]: Analyzing trace with hash 615611020, now seen corresponding path program 1 times [2022-02-01 00:03:36,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:03:36,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621864921] [2022-02-01 00:03:36,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:03:51,407 WARN L228 SmtUtils]: Spent 8.85s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:03:57,609 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:03:57,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:03:57,621 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:03:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:03:57,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:03:57,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:03:57,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:03:57,803 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:03:57,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621864921] [2022-02-01 00:03:57,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1621864921] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:03:57,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:03:57,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:03:57,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125343375] [2022-02-01 00:03:57,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:03:57,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:03:57,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:03:57,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:03:57,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:03:57,804 INFO L87 Difference]: Start difference. First operand 1721 states and 2440 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:03:59,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:04:00,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:04:00,242 INFO L93 Difference]: Finished difference Result 3614 states and 5074 transitions. [2022-02-01 00:04:00,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:04:00,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 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 [2022-02-01 00:04:00,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:04:00,248 INFO L225 Difference]: With dead ends: 3614 [2022-02-01 00:04:00,249 INFO L226 Difference]: Without dead ends: 1909 [2022-02-01 00:04:00,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:04:00,253 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 16 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:04:00,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 464 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 334 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-01 00:04:00,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1909 states. [2022-02-01 00:04:00,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1909 to 1853. [2022-02-01 00:04:00,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1848 states have (on average 1.396103896103896) internal successors, (2580), 1848 states have internal predecessors, (2580), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:00,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 2584 transitions. [2022-02-01 00:04:00,429 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 2584 transitions. Word has length 193 [2022-02-01 00:04:00,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:04:00,429 INFO L470 AbstractCegarLoop]: Abstraction has 1853 states and 2584 transitions. [2022-02-01 00:04:00,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:00,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 2584 transitions. [2022-02-01 00:04:00,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-02-01 00:04:00,432 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:04:00,433 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:04:00,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-01 00:04:00,433 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:04:00,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:04:00,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1617399027, now seen corresponding path program 1 times [2022-02-01 00:04:00,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:04:00,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231214487] [2022-02-01 00:04:00,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:04:18,202 WARN L228 SmtUtils]: Spent 11.26s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:04:27,179 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:04:27,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:04:27,194 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:04:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:27,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:04:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:04:27,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:04:27,416 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:04:27,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231214487] [2022-02-01 00:04:27,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1231214487] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:04:27,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:04:27,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:04:27,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462302218] [2022-02-01 00:04:27,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:04:27,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:04:27,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:04:27,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:04:27,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:04:27,417 INFO L87 Difference]: Start difference. First operand 1853 states and 2584 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:29,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:04:29,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:04:29,929 INFO L93 Difference]: Finished difference Result 4033 states and 5595 transitions. [2022-02-01 00:04:29,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:04:29,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-02-01 00:04:29,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:04:29,938 INFO L225 Difference]: With dead ends: 4033 [2022-02-01 00:04:29,938 INFO L226 Difference]: Without dead ends: 2196 [2022-02-01 00:04:29,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:04:29,941 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 25 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:04:29,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 482 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 369 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-01 00:04:29,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2196 states. [2022-02-01 00:04:30,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2196 to 2087. [2022-02-01 00:04:30,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2087 states, 2082 states have (on average 1.3904899135446687) internal successors, (2895), 2082 states have internal predecessors, (2895), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:30,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2087 states to 2087 states and 2899 transitions. [2022-02-01 00:04:30,092 INFO L78 Accepts]: Start accepts. Automaton has 2087 states and 2899 transitions. Word has length 196 [2022-02-01 00:04:30,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:04:30,092 INFO L470 AbstractCegarLoop]: Abstraction has 2087 states and 2899 transitions. [2022-02-01 00:04:30,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:04:30,093 INFO L276 IsEmpty]: Start isEmpty. Operand 2087 states and 2899 transitions. [2022-02-01 00:04:30,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-02-01 00:04:30,097 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:04:30,097 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 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] [2022-02-01 00:04:30,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-01 00:04:30,097 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:04:30,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:04:30,098 INFO L85 PathProgramCache]: Analyzing trace with hash -717240005, now seen corresponding path program 1 times [2022-02-01 00:04:30,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:04:30,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321513946] [2022-02-01 00:04:30,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:04:53,480 WARN L228 SmtUtils]: Spent 14.46s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:05:02,168 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:05:02,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:05:02,182 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:05:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:02,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:05:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:02,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:05:02,377 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:05:02,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [321513946] [2022-02-01 00:05:02,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [321513946] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:05:02,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:05:02,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:05:02,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228643329] [2022-02-01 00:05:02,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:05:02,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:05:02,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:05:02,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:05:02,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:05:02,379 INFO L87 Difference]: Start difference. First operand 2087 states and 2899 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:04,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:05,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:05:05,003 INFO L93 Difference]: Finished difference Result 4893 states and 6800 transitions. [2022-02-01 00:05:05,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:05:05,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 211 [2022-02-01 00:05:05,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:05:05,009 INFO L225 Difference]: With dead ends: 4893 [2022-02-01 00:05:05,009 INFO L226 Difference]: Without dead ends: 2822 [2022-02-01 00:05:05,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:05:05,013 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 90 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 39 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:05:05,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 286 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:05:05,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2822 states. [2022-02-01 00:05:05,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2822 to 2429. [2022-02-01 00:05:05,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2429 states, 2424 states have (on average 1.4059405940594059) internal successors, (3408), 2424 states have internal predecessors, (3408), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:05,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2429 states to 2429 states and 3412 transitions. [2022-02-01 00:05:05,192 INFO L78 Accepts]: Start accepts. Automaton has 2429 states and 3412 transitions. Word has length 211 [2022-02-01 00:05:05,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:05:05,192 INFO L470 AbstractCegarLoop]: Abstraction has 2429 states and 3412 transitions. [2022-02-01 00:05:05,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:05,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2429 states and 3412 transitions. [2022-02-01 00:05:05,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-02-01 00:05:05,196 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:05:05,196 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 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] [2022-02-01 00:05:05,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-01 00:05:05,196 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:05:05,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:05:05,197 INFO L85 PathProgramCache]: Analyzing trace with hash -662258176, now seen corresponding path program 1 times [2022-02-01 00:05:05,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:05:05,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018534476] [2022-02-01 00:05:05,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:05:22,072 WARN L228 SmtUtils]: Spent 8.68s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:05:29,901 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:05:29,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:05:29,918 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:05:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:30,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:05:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:30,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:05:30,093 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:05:30,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018534476] [2022-02-01 00:05:30,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2018534476] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:05:30,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:05:30,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:05:30,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923828421] [2022-02-01 00:05:30,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:05:30,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:05:30,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:05:30,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:05:30,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:05:30,094 INFO L87 Difference]: Start difference. First operand 2429 states and 3412 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:32,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:05:32,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:05:32,765 INFO L93 Difference]: Finished difference Result 5343 states and 7520 transitions. [2022-02-01 00:05:32,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:05:32,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 212 [2022-02-01 00:05:32,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:05:32,771 INFO L225 Difference]: With dead ends: 5343 [2022-02-01 00:05:32,771 INFO L226 Difference]: Without dead ends: 2930 [2022-02-01 00:05:32,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:05:32,775 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 89 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:05:32,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:05:32,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2022-02-01 00:05:33,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 2546. [2022-02-01 00:05:33,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2546 states, 2541 states have (on average 1.4297520661157024) internal successors, (3633), 2541 states have internal predecessors, (3633), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:33,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2546 states to 2546 states and 3637 transitions. [2022-02-01 00:05:33,009 INFO L78 Accepts]: Start accepts. Automaton has 2546 states and 3637 transitions. Word has length 212 [2022-02-01 00:05:33,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:05:33,009 INFO L470 AbstractCegarLoop]: Abstraction has 2546 states and 3637 transitions. [2022-02-01 00:05:33,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:05:33,009 INFO L276 IsEmpty]: Start isEmpty. Operand 2546 states and 3637 transitions. [2022-02-01 00:05:33,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-02-01 00:05:33,013 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:05:33,013 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 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] [2022-02-01 00:05:33,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-01 00:05:33,013 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:05:33,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:05:33,014 INFO L85 PathProgramCache]: Analyzing trace with hash -30384115, now seen corresponding path program 1 times [2022-02-01 00:05:33,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:05:33,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132947163] [2022-02-01 00:05:33,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:05:50,679 WARN L228 SmtUtils]: Spent 7.85s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:05:59,256 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:05:59,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:05:59,271 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:05:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:59,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:05:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:05:59,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:05:59,525 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:05:59,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132947163] [2022-02-01 00:05:59,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2132947163] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:05:59,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:05:59,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:05:59,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268831980] [2022-02-01 00:05:59,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:05:59,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:05:59,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:05:59,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:05:59,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:05:59,527 INFO L87 Difference]: Start difference. First operand 2546 states and 3637 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:01,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:06:02,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:06:02,331 INFO L93 Difference]: Finished difference Result 5354 states and 7642 transitions. [2022-02-01 00:06:02,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:06:02,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 212 [2022-02-01 00:06:02,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:06:02,336 INFO L225 Difference]: With dead ends: 5354 [2022-02-01 00:06:02,336 INFO L226 Difference]: Without dead ends: 2824 [2022-02-01 00:06:02,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:06:02,339 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 50 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:06:02,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 522 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:06:02,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states. [2022-02-01 00:06:02,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 2698. [2022-02-01 00:06:02,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2698 states, 2693 states have (on average 1.433717044188637) internal successors, (3861), 2693 states have internal predecessors, (3861), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:02,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 3865 transitions. [2022-02-01 00:06:02,570 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 3865 transitions. Word has length 212 [2022-02-01 00:06:02,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:06:02,570 INFO L470 AbstractCegarLoop]: Abstraction has 2698 states and 3865 transitions. [2022-02-01 00:06:02,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:02,570 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 3865 transitions. [2022-02-01 00:06:02,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-02-01 00:06:02,573 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:06:02,573 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:06:02,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-01 00:06:02,573 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:06:02,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:06:02,574 INFO L85 PathProgramCache]: Analyzing trace with hash 2094580114, now seen corresponding path program 1 times [2022-02-01 00:06:02,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:06:02,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106892641] [2022-02-01 00:06:02,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:06:23,118 WARN L228 SmtUtils]: Spent 13.74s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:06:28,157 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:06:28,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:06:28,177 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:06:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:28,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:06:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:06:28,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:06:28,411 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:06:28,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2106892641] [2022-02-01 00:06:28,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2106892641] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:06:28,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:06:28,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:06:28,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047602448] [2022-02-01 00:06:28,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:06:28,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:06:28,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:06:28,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:06:28,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:06:28,413 INFO L87 Difference]: Start difference. First operand 2698 states and 3865 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:30,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:06:30,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:06:30,973 INFO L93 Difference]: Finished difference Result 4915 states and 7015 transitions. [2022-02-01 00:06:30,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:06:30,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-02-01 00:06:30,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:06:30,979 INFO L225 Difference]: With dead ends: 4915 [2022-02-01 00:06:30,979 INFO L226 Difference]: Without dead ends: 2780 [2022-02-01 00:06:30,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:06:30,982 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 32 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:06:30,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 478 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 357 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-01 00:06:30,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2022-02-01 00:06:31,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2698. [2022-02-01 00:06:31,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2698 states, 2693 states have (on average 1.4303750464166358) internal successors, (3852), 2693 states have internal predecessors, (3852), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:31,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 3856 transitions. [2022-02-01 00:06:31,192 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 3856 transitions. Word has length 213 [2022-02-01 00:06:31,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:06:31,192 INFO L470 AbstractCegarLoop]: Abstraction has 2698 states and 3856 transitions. [2022-02-01 00:06:31,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:06:31,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 3856 transitions. [2022-02-01 00:06:31,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-02-01 00:06:31,196 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:06:31,196 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:06:31,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-01 00:06:31,197 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:06:31,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:06:31,197 INFO L85 PathProgramCache]: Analyzing trace with hash 821938093, now seen corresponding path program 1 times [2022-02-01 00:06:31,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:06:31,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [673570063] [2022-02-01 00:06:31,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:06:55,856 WARN L228 SmtUtils]: Spent 15.35s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:07:04,412 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:07:04,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:07:04,427 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:07:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:04,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:07:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:04,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:07:04,608 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:07:04,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [673570063] [2022-02-01 00:07:04,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [673570063] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:07:04,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:07:04,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:07:04,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815475069] [2022-02-01 00:07:04,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:07:04,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:07:04,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:07:04,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:07:04,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:07:04,609 INFO L87 Difference]: Start difference. First operand 2698 states and 3856 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:06,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:07:07,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:07:07,289 INFO L93 Difference]: Finished difference Result 5764 states and 8174 transitions. [2022-02-01 00:07:07,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:07:07,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 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 222 [2022-02-01 00:07:07,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:07:07,295 INFO L225 Difference]: With dead ends: 5764 [2022-02-01 00:07:07,295 INFO L226 Difference]: Without dead ends: 3082 [2022-02-01 00:07:07,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:07:07,301 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 87 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:07:07,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:07:07,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3082 states. [2022-02-01 00:07:07,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3082 to 2555. [2022-02-01 00:07:07,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2555 states, 2550 states have (on average 1.4247058823529413) internal successors, (3633), 2550 states have internal predecessors, (3633), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:07,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 3637 transitions. [2022-02-01 00:07:07,519 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 3637 transitions. Word has length 222 [2022-02-01 00:07:07,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:07:07,519 INFO L470 AbstractCegarLoop]: Abstraction has 2555 states and 3637 transitions. [2022-02-01 00:07:07,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:07,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 3637 transitions. [2022-02-01 00:07:07,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-01 00:07:07,537 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:07:07,537 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:07:07,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-01 00:07:07,537 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:07:07,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:07:07,537 INFO L85 PathProgramCache]: Analyzing trace with hash 619742302, now seen corresponding path program 1 times [2022-02-01 00:07:07,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:07:07,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853900038] [2022-02-01 00:07:07,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:07:26,510 WARN L228 SmtUtils]: Spent 9.38s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:07:34,336 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:07:34,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:07:34,353 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:07:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:34,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:07:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:07:34,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:07:34,540 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:07:34,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853900038] [2022-02-01 00:07:34,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [853900038] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:07:34,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:07:34,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:07:34,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465768057] [2022-02-01 00:07:34,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:07:34,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:07:34,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:07:34,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:07:34,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:07:34,541 INFO L87 Difference]: Start difference. First operand 2555 states and 3637 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:36,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:07:37,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:07:37,211 INFO L93 Difference]: Finished difference Result 5459 states and 7708 transitions. [2022-02-01 00:07:37,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:07:37,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 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 223 [2022-02-01 00:07:37,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:07:37,217 INFO L225 Difference]: With dead ends: 5459 [2022-02-01 00:07:37,217 INFO L226 Difference]: Without dead ends: 2920 [2022-02-01 00:07:37,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:07:37,222 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 84 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:07:37,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 286 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-01 00:07:37,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2022-02-01 00:07:37,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 2564. [2022-02-01 00:07:37,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2559 states have (on average 1.4232121922626026) internal successors, (3642), 2559 states have internal predecessors, (3642), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:37,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 3646 transitions. [2022-02-01 00:07:37,699 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 3646 transitions. Word has length 223 [2022-02-01 00:07:37,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:07:37,699 INFO L470 AbstractCegarLoop]: Abstraction has 2564 states and 3646 transitions. [2022-02-01 00:07:37,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:07:37,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 3646 transitions. [2022-02-01 00:07:37,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-02-01 00:07:37,702 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:07:37,702 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 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] [2022-02-01 00:07:37,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-01 00:07:37,702 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:07:37,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:07:37,702 INFO L85 PathProgramCache]: Analyzing trace with hash 104304654, now seen corresponding path program 1 times [2022-02-01 00:07:37,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:07:37,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727582363] [2022-02-01 00:07:37,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:07:54,038 WARN L228 SmtUtils]: Spent 8.69s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:08:00,332 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:08:00,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:08:00,349 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:08:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:00,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:08:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:00,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:08:00,562 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:08:00,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727582363] [2022-02-01 00:08:00,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1727582363] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:08:00,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:08:00,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:08:00,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220613012] [2022-02-01 00:08:00,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:08:00,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:08:00,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:08:00,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:08:00,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:08:00,563 INFO L87 Difference]: Start difference. First operand 2564 states and 3646 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:02,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:08:03,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:08:03,373 INFO L93 Difference]: Finished difference Result 5185 states and 7352 transitions. [2022-02-01 00:08:03,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:08:03,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 238 [2022-02-01 00:08:03,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:08:03,380 INFO L225 Difference]: With dead ends: 5185 [2022-02-01 00:08:03,380 INFO L226 Difference]: Without dead ends: 3150 [2022-02-01 00:08:03,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:08:03,385 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 67 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:08:03,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 510 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:08:03,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3150 states. [2022-02-01 00:08:03,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3150 to 2717. [2022-02-01 00:08:03,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2717 states, 2712 states have (on average 1.415929203539823) internal successors, (3840), 2712 states have internal predecessors, (3840), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:03,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 3844 transitions. [2022-02-01 00:08:03,746 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 3844 transitions. Word has length 238 [2022-02-01 00:08:03,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:08:03,746 INFO L470 AbstractCegarLoop]: Abstraction has 2717 states and 3844 transitions. [2022-02-01 00:08:03,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:03,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 3844 transitions. [2022-02-01 00:08:03,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-02-01 00:08:03,749 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:08:03,750 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 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] [2022-02-01 00:08:03,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-01 00:08:03,750 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:08:03,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:08:03,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1496766452, now seen corresponding path program 1 times [2022-02-01 00:08:03,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:08:03,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67734590] [2022-02-01 00:08:03,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:08:21,754 WARN L228 SmtUtils]: Spent 10.44s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:08:28,349 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:08:28,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:08:28,377 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:08:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:28,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:08:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:08:28,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:08:28,590 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:08:28,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67734590] [2022-02-01 00:08:28,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [67734590] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:08:28,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:08:28,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:08:28,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894360414] [2022-02-01 00:08:28,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:08:28,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:08:28,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:08:28,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:08:28,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:08:28,592 INFO L87 Difference]: Start difference. First operand 2717 states and 3844 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:30,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:08:31,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:08:31,329 INFO L93 Difference]: Finished difference Result 4941 states and 6954 transitions. [2022-02-01 00:08:31,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:08:31,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 238 [2022-02-01 00:08:31,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:08:31,334 INFO L225 Difference]: With dead ends: 4941 [2022-02-01 00:08:31,334 INFO L226 Difference]: Without dead ends: 2787 [2022-02-01 00:08:31,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:08:31,337 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 103 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:08:31,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 462 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:08:31,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2022-02-01 00:08:31,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 2274. [2022-02-01 00:08:31,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 2269 states have (on average 1.4072278536800353) internal successors, (3193), 2269 states have internal predecessors, (3193), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:31,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 3197 transitions. [2022-02-01 00:08:31,663 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 3197 transitions. Word has length 238 [2022-02-01 00:08:31,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:08:31,663 INFO L470 AbstractCegarLoop]: Abstraction has 2274 states and 3197 transitions. [2022-02-01 00:08:31,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:08:31,663 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 3197 transitions. [2022-02-01 00:08:31,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-02-01 00:08:31,666 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:08:31,666 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 6, 6, 5, 5, 4, 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] [2022-02-01 00:08:31,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-01 00:08:31,667 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:08:31,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:08:31,667 INFO L85 PathProgramCache]: Analyzing trace with hash 325897596, now seen corresponding path program 1 times [2022-02-01 00:08:31,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:08:31,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605084299] [2022-02-01 00:08:31,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:08:55,566 WARN L228 SmtUtils]: Spent 12.21s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:09:03,977 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:09:03,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:09:03,994 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:09:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:04,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:09:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:04,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:09:04,226 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:09:04,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605084299] [2022-02-01 00:09:04,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [605084299] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:09:04,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:09:04,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:09:04,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246050936] [2022-02-01 00:09:04,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:09:04,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:09:04,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:09:04,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:09:04,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:09:04,229 INFO L87 Difference]: Start difference. First operand 2274 states and 3197 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:06,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:06,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:09:06,997 INFO L93 Difference]: Finished difference Result 4716 states and 6631 transitions. [2022-02-01 00:09:06,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:09:06,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 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 252 [2022-02-01 00:09:06,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:09:07,001 INFO L225 Difference]: With dead ends: 4716 [2022-02-01 00:09:07,001 INFO L226 Difference]: Without dead ends: 2458 [2022-02-01 00:09:07,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:09:07,004 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 53 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-01 00:09:07,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 502 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-01 00:09:07,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2022-02-01 00:09:07,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 2349. [2022-02-01 00:09:07,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2349 states, 2344 states have (on average 1.4031569965870307) internal successors, (3289), 2344 states have internal predecessors, (3289), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:07,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3293 transitions. [2022-02-01 00:09:07,274 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3293 transitions. Word has length 252 [2022-02-01 00:09:07,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:09:07,274 INFO L470 AbstractCegarLoop]: Abstraction has 2349 states and 3293 transitions. [2022-02-01 00:09:07,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:07,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3293 transitions. [2022-02-01 00:09:07,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-02-01 00:09:07,278 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:09:07,278 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:09:07,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-01 00:09:07,279 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:09:07,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:09:07,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1615714743, now seen corresponding path program 1 times [2022-02-01 00:09:07,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:09:07,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460252568] [2022-02-01 00:09:07,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:09:20,706 WARN L228 SmtUtils]: Spent 6.53s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:09:26,422 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:09:26,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:09:26,449 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:09:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:26,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:09:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:26,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:09:26,633 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:09:26,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460252568] [2022-02-01 00:09:26,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1460252568] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:09:26,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:09:26,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:09:26,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143437668] [2022-02-01 00:09:26,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:09:26,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:09:26,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:09:26,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:09:26,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:09:26,634 INFO L87 Difference]: Start difference. First operand 2349 states and 3293 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:28,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:29,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:09:29,259 INFO L93 Difference]: Finished difference Result 4539 states and 6284 transitions. [2022-02-01 00:09:29,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:09:29,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 262 [2022-02-01 00:09:29,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:09:29,262 INFO L225 Difference]: With dead ends: 4539 [2022-02-01 00:09:29,262 INFO L226 Difference]: Without dead ends: 2198 [2022-02-01 00:09:29,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:09:29,264 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 80 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:09:29,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 296 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-01 00:09:29,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2198 states. [2022-02-01 00:09:29,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2198 to 1336. [2022-02-01 00:09:29,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1331 states have (on average 1.3921863260706235) internal successors, (1853), 1331 states have internal predecessors, (1853), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:29,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1857 transitions. [2022-02-01 00:09:29,475 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1857 transitions. Word has length 262 [2022-02-01 00:09:29,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:09:29,475 INFO L470 AbstractCegarLoop]: Abstraction has 1336 states and 1857 transitions. [2022-02-01 00:09:29,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:29,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1857 transitions. [2022-02-01 00:09:29,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-02-01 00:09:29,477 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:09:29,477 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:09:29,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-01 00:09:29,477 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:09:29,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:09:29,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1910686590, now seen corresponding path program 1 times [2022-02-01 00:09:29,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:09:29,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1277649977] [2022-02-01 00:09:29,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:09:49,875 WARN L228 SmtUtils]: Spent 7.18s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-01 00:09:57,192 INFO L92 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Could not compute Simultaneous Update! [2022-02-01 00:09:57,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:09:57,215 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:09:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:57,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:09:57,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:09:57,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:09:57,409 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:09:57,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1277649977] [2022-02-01 00:09:57,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1277649977] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:09:57,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:09:57,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:09:57,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475906301] [2022-02-01 00:09:57,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:09:57,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:09:57,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:09:57,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:09:57,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:09:57,410 INFO L87 Difference]: Start difference. First operand 1336 states and 1857 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:09:59,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-01 00:09:59,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:09:59,965 INFO L93 Difference]: Finished difference Result 2820 states and 3888 transitions. [2022-02-01 00:09:59,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:09:59,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 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 272 [2022-02-01 00:09:59,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:09:59,967 INFO L225 Difference]: With dead ends: 2820 [2022-02-01 00:09:59,967 INFO L226 Difference]: Without dead ends: 1500 [2022-02-01 00:09:59,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-01 00:09:59,970 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 97 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:09:59,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 300 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-01 00:09:59,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2022-02-01 00:10:00,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1336. [2022-02-01 00:10:00,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1331 states have (on average 1.3779113448534936) internal successors, (1834), 1331 states have internal predecessors, (1834), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:10:00,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1838 transitions. [2022-02-01 00:10:00,134 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1838 transitions. Word has length 272 [2022-02-01 00:10:00,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:10:00,135 INFO L470 AbstractCegarLoop]: Abstraction has 1336 states and 1838 transitions. [2022-02-01 00:10:00,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-01 00:10:00,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1838 transitions. [2022-02-01 00:10:00,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-02-01 00:10:00,137 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:10:00,137 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:10:00,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-01 00:10:00,138 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:10:00,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:10:00,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1356247333, now seen corresponding path program 1 times [2022-02-01 00:10:00,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:10:00,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838003894] [2022-02-01 00:10:00,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY