./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/s3_srvr_2_alt.BV.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/s3_srvr_2_alt.BV.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6f471c2069a17f4b6e68bb79ae563cb2d5d85385 .......................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 15:43:32,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 15:43:32,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 15:43:32,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 15:43:32,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 15:43:32,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 15:43:32,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 15:43:32,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 15:43:32,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 15:43:32,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 15:43:32,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 15:43:32,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 15:43:32,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 15:43:32,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 15:43:32,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 15:43:32,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 15:43:32,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 15:43:32,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 15:43:32,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 15:43:32,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 15:43:32,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 15:43:32,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 15:43:32,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 15:43:32,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 15:43:32,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 15:43:32,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 15:43:32,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 15:43:32,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 15:43:32,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 15:43:32,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 15:43:32,945 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 15:43:32,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 15:43:32,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 15:43:32,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 15:43:32,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 15:43:32,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 15:43:32,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 15:43:32,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 15:43:32,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 15:43:32,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 15:43:32,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 15:43:32,951 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-07-06 15:43:32,979 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 15:43:32,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 15:43:32,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 15:43:32,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 15:43:32,981 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 15:43:32,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 15:43:32,982 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 15:43:32,982 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 15:43:32,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 15:43:32,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 15:43:32,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 15:43:32,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-06 15:43:32,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-06 15:43:32,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-06 15:43:32,984 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-07-06 15:43:32,984 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 15:43:32,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 15:43:32,984 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 15:43:32,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-06 15:43:32,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 15:43:32,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 15:43:32,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-06 15:43:32,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 15:43:32,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 15:43:32,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-06 15:43:32,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-06 15:43:32,986 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 15:43:32,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-06 15:43:32,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-06 15:43:32,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 15:43:32,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f471c2069a17f4b6e68bb79ae563cb2d5d85385 [2021-07-06 15:43:33,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 15:43:33,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 15:43:33,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 15:43:33,255 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 15:43:33,256 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 15:43:33,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/s3_srvr_2_alt.BV.c.cil.c [2021-07-06 15:43:33,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/957bab55d/334a8583700d4a60a224f9b394616040/FLAGb8606e0c5 [2021-07-06 15:43:33,692 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 15:43:33,692 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/s3_srvr_2_alt.BV.c.cil.c [2021-07-06 15:43:33,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/957bab55d/334a8583700d4a60a224f9b394616040/FLAGb8606e0c5 [2021-07-06 15:43:34,090 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/957bab55d/334a8583700d4a60a224f9b394616040 [2021-07-06 15:43:34,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 15:43:34,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 15:43:34,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 15:43:34,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 15:43:34,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 15:43:34,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 03:43:34" (1/1) ... [2021-07-06 15:43:34,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65c6e36c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:43:34, skipping insertion in model container [2021-07-06 15:43:34,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 03:43:34" (1/1) ... [2021-07-06 15:43:34,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 15:43:34,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 15:43:34,268 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/s3_srvr_2_alt.BV.c.cil.c[44219,44232] [2021-07-06 15:43:34,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 15:43:34,278 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 15:43:34,348 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/s3_srvr_2_alt.BV.c.cil.c[44219,44232] [2021-07-06 15:43:34,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 15:43:34,379 INFO L208 MainTranslator]: Completed translation [2021-07-06 15:43:34,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:43:34 WrapperNode [2021-07-06 15:43:34,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 15:43:34,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 15:43:34,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 15:43:34,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 15:43:34,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:43:34" (1/1) ... [2021-07-06 15:43:34,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:43:34" (1/1) ... [2021-07-06 15:43:34,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 15:43:34,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 15:43:34,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 15:43:34,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 15:43:34,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:43:34" (1/1) ... [2021-07-06 15:43:34,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:43:34" (1/1) ... [2021-07-06 15:43:34,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:43:34" (1/1) ... [2021-07-06 15:43:34,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:43:34" (1/1) ... [2021-07-06 15:43:34,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:43:34" (1/1) ... [2021-07-06 15:43:34,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:43:34" (1/1) ... [2021-07-06 15:43:34,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:43:34" (1/1) ... [2021-07-06 15:43:34,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 15:43:34,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 15:43:34,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 15:43:34,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 15:43:34,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:43:34" (1/1) ... [2021-07-06 15:43:34,487 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 15:43:34,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 15:43:34,514 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) [2021-07-06 15:43:34,539 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 [2021-07-06 15:43:34,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 15:43:34,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 15:43:34,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 15:43:34,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 15:43:34,698 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-07-06 15:43:35,153 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-07-06 15:43:35,154 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-07-06 15:43:35,160 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 15:43:35,160 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-06 15:43:35,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:43:35 BoogieIcfgContainer [2021-07-06 15:43:35,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 15:43:35,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-06 15:43:35,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-06 15:43:35,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-06 15:43:35,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.07 03:43:34" (1/3) ... [2021-07-06 15:43:35,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca3030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 03:43:35, skipping insertion in model container [2021-07-06 15:43:35,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:43:34" (2/3) ... [2021-07-06 15:43:35,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca3030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 03:43:35, skipping insertion in model container [2021-07-06 15:43:35,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:43:35" (3/3) ... [2021-07-06 15:43:35,166 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_2_alt.BV.c.cil.c [2021-07-06 15:43:35,171 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-06 15:43:35,171 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-07-06 15:43:35,201 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:43:35,205 INFO L329 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 15:43:35,205 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:43:35,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 193 states, 163 states have (on average 1.7914110429447854) internal successors, (292), 192 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:43:35,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-07-06 15:43:35,222 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:43:35,222 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-07-06 15:43:35,223 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:43:35,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:43:35,228 INFO L82 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2021-07-06 15:43:35,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:43:35,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605999268] [2021-07-06 15:43:35,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:43:35,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:43:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 15:43:35,331 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 15:43:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 15:43:35,374 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 15:43:35,406 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 15:43:35,409 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-06 15:43:35,412 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-06 15:43:35,412 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:43:35,415 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW was UNSAFE (1/29) [2021-07-06 15:43:35,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.07 03:43:35 BoogieIcfgContainer [2021-07-06 15:43:35,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-06 15:43:35,454 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 15:43:35,454 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 15:43:35,455 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 15:43:35,455 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:43:35" (3/4) ... [2021-07-06 15:43:35,457 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-06 15:43:35,506 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 15:43:35,506 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 15:43:35,508 INFO L168 Benchmark]: Toolchain (without parser) took 1412.77 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 43.4 MB in the beginning and 51.2 MB in the end (delta: -7.9 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2021-07-06 15:43:35,508 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 62.9 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 15:43:35,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.36 ms. Allocated memory is still 62.9 MB. Free memory was 43.1 MB in the beginning and 44.7 MB in the end (delta: -1.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-07-06 15:43:35,509 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.43 ms. Allocated memory is still 62.9 MB. Free memory was 44.7 MB in the beginning and 41.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 15:43:35,509 INFO L168 Benchmark]: Boogie Preprocessor took 40.66 ms. Allocated memory is still 62.9 MB. Free memory was 41.7 MB in the beginning and 39.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 15:43:35,510 INFO L168 Benchmark]: RCFGBuilder took 679.74 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 39.6 MB in the beginning and 44.2 MB in the end (delta: -4.7 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB. [2021-07-06 15:43:35,510 INFO L168 Benchmark]: TraceAbstraction took 285.21 ms. Allocated memory is still 81.8 MB. Free memory was 43.8 MB in the beginning and 54.4 MB in the end (delta: -10.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 15:43:35,510 INFO L168 Benchmark]: Witness Printer took 52.22 ms. Allocated memory is still 81.8 MB. Free memory was 54.4 MB in the beginning and 51.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 15:43:35,512 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 62.9 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 284.36 ms. Allocated memory is still 62.9 MB. Free memory was 43.1 MB in the beginning and 44.7 MB in the end (delta: -1.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.43 ms. Allocated memory is still 62.9 MB. Free memory was 44.7 MB in the beginning and 41.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.66 ms. Allocated memory is still 62.9 MB. Free memory was 41.7 MB in the beginning and 39.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 679.74 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 39.6 MB in the beginning and 44.2 MB in the end (delta: -4.7 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 285.21 ms. Allocated memory is still 81.8 MB. Free memory was 43.8 MB in the beginning and 54.4 MB in the end (delta: -10.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 52.22 ms. Allocated memory is still 81.8 MB. Free memory was 54.4 MB in the beginning and 51.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 85]: integer overflow possible integer overflow possible We found a FailurePath: [L679] int s ; [L680] int tmp ; [L684] s = 8464 [L11] int s__info_callback = __VERIFIER_nondet_int(); [L12] int s__in_handshake = __VERIFIER_nondet_int(); [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int(); [L17] int s__type ; [L18] int s__init_num ; [L19] int s__hit = __VERIFIER_nondet_int(); [L20] int s__rwstate ; [L21] int s__init_buf___0 ; [L22] int s__debug = __VERIFIER_nondet_int(); [L23] int s__shutdown ; [L24] int s__cert = __VERIFIER_nondet_int(); [L25] int s__options = __VERIFIER_nondet_int(); [L26] int s__verify_mode = __VERIFIER_nondet_int(); [L27] int s__session__peer = __VERIFIER_nondet_int(); [L28] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int(); [L29] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L30] int s__ctx__stats__sess_accept_renegotiate ; [L31] int s__ctx__stats__sess_accept ; [L32] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int(); [L33] int s__s3__tmp__cert_request ; [L34] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__use_rsa_tmp ; [L36] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L38] int s__s3__tmp__next_state___0 ; [L39] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int(); [L40] int s__session__cipher ; [L41] int buf ; [L42] unsigned long l ; [L43] unsigned long Time ; [L44] unsigned long tmp ; [L45] int cb ; [L46] long num1 ; [L47] int ret ; [L48] int new_state ; [L49] int state ; [L50] int skip ; [L51] int got_new_session ; [L52] int tmp___1 = __VERIFIER_nondet_int(); [L53] int tmp___2 = __VERIFIER_nondet_int(); [L54] int tmp___3 = __VERIFIER_nondet_int(); [L55] int tmp___4 = __VERIFIER_nondet_int(); [L56] int tmp___5 = __VERIFIER_nondet_int(); [L57] int tmp___6 = __VERIFIER_nondet_int(); [L58] int tmp___7 ; [L59] long tmp___8 = __VERIFIER_nondet_long(); [L60] int tmp___9 = __VERIFIER_nondet_int(); [L61] int tmp___10 = __VERIFIER_nondet_int(); [L62] int blastFlag ; [L63] int ag_X = __VERIFIER_nondet_int(); [L64] int ag_Y ; [L65] int __retres69 ; [L68] s__state = initial_state [L69] blastFlag = 0 [L70] tmp = __VERIFIER_nondet_int() [L71] Time = tmp [L72] cb = 0 [L73] ret = -1 [L74] skip = 0 [L75] got_new_session = 0 [L76] COND TRUE s__info_callback != 0 [L77] cb = s__info_callback [L85] s__in_handshake + 1 - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 1 procedures, 193 locations, 29 error locations. Started 1 CEGAR loops. OverallTime: 216.0ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 6.2ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 3.8ms SsaConstructionTime, 53.7ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-07-06 15:43:35,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...