./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/s3_srvr_1.BV.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_165baeb5-90cd-462f-949f-5b3c5d5edd36/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_165baeb5-90cd-462f-949f-5b3c5d5edd36/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_165baeb5-90cd-462f-949f-5b3c5d5edd36/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_165baeb5-90cd-462f-949f-5b3c5d5edd36/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_srvr_1.BV.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_165baeb5-90cd-462f-949f-5b3c5d5edd36/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_165baeb5-90cd-462f-949f-5b3c5d5edd36/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dd4a534b15636e47642409d66969fbbd8a5be15e ................................................................................................................................................................................................................................................................................................................ 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 0.2.0-7b2dab5 [2020-12-03 12:32:15,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:32:15,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:32:16,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:32:16,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:32:16,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:32:16,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:32:16,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:32:16,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:32:16,028 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:32:16,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:32:16,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:32:16,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:32:16,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:32:16,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:32:16,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:32:16,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:32:16,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:32:16,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:32:16,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:32:16,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:32:16,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:32:16,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:32:16,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:32:16,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:32:16,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:32:16,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:32:16,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:32:16,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:32:16,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:32:16,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:32:16,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:32:16,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:32:16,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:32:16,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:32:16,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:32:16,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:32:16,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:32:16,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:32:16,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:32:16,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:32:16,064 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_165baeb5-90cd-462f-949f-5b3c5d5edd36/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2020-12-03 12:32:16,090 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:32:16,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:32:16,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:32:16,092 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:32:16,092 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:32:16,092 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:32:16,092 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:32:16,092 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:32:16,093 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:32:16,093 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:32:16,093 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:32:16,093 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:32:16,094 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:32:16,094 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:32:16,094 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:32:16,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:32:16,095 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:32:16,095 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 12:32:16,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:32:16,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:32:16,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:32:16,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:32:16,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:32:16,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:32:16,097 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-03 12:32:16,097 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:32:16,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:32:16,098 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:32:16,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:32:16,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:32:16,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:32:16,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:32:16,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:32:16,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:32:16,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:32:16,099 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:32:16,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:32:16,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:32:16,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:32:16,100 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:32:16,101 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_165baeb5-90cd-462f-949f-5b3c5d5edd36/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_165baeb5-90cd-462f-949f-5b3c5d5edd36/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd4a534b15636e47642409d66969fbbd8a5be15e [2020-12-03 12:32:16,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:32:16,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:32:16,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:32:16,362 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:32:16,363 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:32:16,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_165baeb5-90cd-462f-949f-5b3c5d5edd36/bin/utaipan/../../sv-benchmarks/c/bitvector/s3_srvr_1.BV.c.cil.c [2020-12-03 12:32:16,434 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_165baeb5-90cd-462f-949f-5b3c5d5edd36/bin/utaipan/data/cf8579a63/b48397ca8da946448ec05e21eb5d554e/FLAG40badeb6a [2020-12-03 12:32:16,963 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:32:16,964 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_165baeb5-90cd-462f-949f-5b3c5d5edd36/sv-benchmarks/c/bitvector/s3_srvr_1.BV.c.cil.c [2020-12-03 12:32:16,984 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_165baeb5-90cd-462f-949f-5b3c5d5edd36/bin/utaipan/data/cf8579a63/b48397ca8da946448ec05e21eb5d554e/FLAG40badeb6a [2020-12-03 12:32:17,316 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_165baeb5-90cd-462f-949f-5b3c5d5edd36/bin/utaipan/data/cf8579a63/b48397ca8da946448ec05e21eb5d554e [2020-12-03 12:32:17,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:32:17,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:32:17,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:32:17,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:32:17,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:32:17,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:32:17" (1/1) ... [2020-12-03 12:32:17,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4053d4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:17, skipping insertion in model container [2020-12-03 12:32:17,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:32:17" (1/1) ... [2020-12-03 12:32:17,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:32:17,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:32:17,633 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_165baeb5-90cd-462f-949f-5b3c5d5edd36/sv-benchmarks/c/bitvector/s3_srvr_1.BV.c.cil.c[44563,44576] [2020-12-03 12:32:17,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:32:17,649 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:32:17,756 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_165baeb5-90cd-462f-949f-5b3c5d5edd36/sv-benchmarks/c/bitvector/s3_srvr_1.BV.c.cil.c[44563,44576] [2020-12-03 12:32:17,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:32:17,781 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:32:17,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:17 WrapperNode [2020-12-03 12:32:17,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:32:17,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:32:17,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:32:17,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:32:17,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:17" (1/1) ... [2020-12-03 12:32:17,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:17" (1/1) ... [2020-12-03 12:32:17,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:32:17,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:32:17,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:32:17,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:32:17,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:17" (1/1) ... [2020-12-03 12:32:17,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:17" (1/1) ... [2020-12-03 12:32:17,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:17" (1/1) ... [2020-12-03 12:32:17,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:17" (1/1) ... [2020-12-03 12:32:17,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:17" (1/1) ... [2020-12-03 12:32:17,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:17" (1/1) ... [2020-12-03 12:32:17,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:17" (1/1) ... [2020-12-03 12:32:17,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:32:17,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:32:17,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:32:17,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:32:17,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_165baeb5-90cd-462f-949f-5b3c5d5edd36/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:32:18,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 12:32:18,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 12:32:18,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:32:18,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:32:18,281 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-03 12:32:18,850 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-12-03 12:32:18,850 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-12-03 12:32:19,256 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:32:19,256 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-03 12:32:19,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:32:19 BoogieIcfgContainer [2020-12-03 12:32:19,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:32:19,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:32:19,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:32:19,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:32:19,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:32:17" (1/3) ... [2020-12-03 12:32:19,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc87e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:32:19, skipping insertion in model container [2020-12-03 12:32:19,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:32:17" (2/3) ... [2020-12-03 12:32:19,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc87e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:32:19, skipping insertion in model container [2020-12-03 12:32:19,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:32:19" (3/3) ... [2020-12-03 12:32:19,274 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.BV.c.cil.c [2020-12-03 12:32:19,291 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:32:19,295 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-12-03 12:32:19,306 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-12-03 12:32:19,348 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:32:19,348 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 12:32:19,348 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:32:19,348 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:32:19,349 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:32:19,349 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:32:19,349 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:32:19,349 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:32:19,375 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states. [2020-12-03 12:32:19,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-03 12:32:19,380 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:19,381 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-12-03 12:32:19,383 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-03 12:32:19,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:19,389 INFO L82 PathProgramCache]: Analyzing trace with hash 21869, now seen corresponding path program 1 times [2020-12-03 12:32:19,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:19,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044924077] [2020-12-03 12:32:19,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 12:32:19,523 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 12:32:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 12:32:19,568 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 12:32:19,603 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-03 12:32:19,604 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-03 12:32:19,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 12:32:19,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:32:19 BoogieIcfgContainer [2020-12-03 12:32:19,651 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:32:19,653 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:32:19,653 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:32:19,655 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:32:19,655 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:32:19" (3/4) ... [2020-12-03 12:32:19,659 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-03 12:32:19,750 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_165baeb5-90cd-462f-949f-5b3c5d5edd36/bin/utaipan/witness.graphml [2020-12-03 12:32:19,751 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:32:19,753 INFO L168 Benchmark]: Toolchain (without parser) took 2431.79 ms. Allocated memory is still 136.3 MB. Free memory was 106.4 MB in the beginning and 90.4 MB in the end (delta: 15.9 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:19,753 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 100.7 MB. Free memory is still 61.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:32:19,754 INFO L168 Benchmark]: CACSL2BoogieTranslator took 458.14 ms. Allocated memory is still 136.3 MB. Free memory was 106.0 MB in the beginning and 107.5 MB in the end (delta: -1.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:19,754 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.06 ms. Allocated memory is still 136.3 MB. Free memory was 107.1 MB in the beginning and 104.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:19,755 INFO L168 Benchmark]: Boogie Preprocessor took 40.16 ms. Allocated memory is still 136.3 MB. Free memory was 104.6 MB in the beginning and 102.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:19,755 INFO L168 Benchmark]: RCFGBuilder took 1368.15 ms. Allocated memory is still 136.3 MB. Free memory was 102.4 MB in the beginning and 109.2 MB in the end (delta: -6.8 MB). Peak memory consumption was 44.6 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:19,756 INFO L168 Benchmark]: TraceAbstraction took 385.77 ms. Allocated memory is still 136.3 MB. Free memory was 108.3 MB in the beginning and 93.7 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:19,756 INFO L168 Benchmark]: Witness Printer took 97.63 ms. Allocated memory is still 136.3 MB. Free memory was 93.7 MB in the beginning and 90.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:19,759 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 100.7 MB. Free memory is still 61.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 458.14 ms. Allocated memory is still 136.3 MB. Free memory was 106.0 MB in the beginning and 107.5 MB in the end (delta: -1.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.06 ms. Allocated memory is still 136.3 MB. Free memory was 107.1 MB in the beginning and 104.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.16 ms. Allocated memory is still 136.3 MB. Free memory was 104.6 MB in the beginning and 102.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1368.15 ms. Allocated memory is still 136.3 MB. Free memory was 102.4 MB in the beginning and 109.2 MB in the end (delta: -6.8 MB). Peak memory consumption was 44.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 385.77 ms. Allocated memory is still 136.3 MB. Free memory was 108.3 MB in the beginning and 93.7 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 97.63 ms. Allocated memory is still 136.3 MB. Free memory was 93.7 MB in the beginning and 90.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 83]: integer overflow possible integer overflow possible We found a FailurePath: [L681] int s ; [L682] int tmp ; [L686] s = 8464 [L12] int s__info_callback = __VERIFIER_nondet_int(); [L13] int s__in_handshake = __VERIFIER_nondet_int(); [L14] int s__state ; [L15] int s__new_session ; [L16] int s__server ; [L17] int s__version = __VERIFIER_nondet_int(); [L18] int s__type ; [L19] int s__init_num ; [L20] int s__hit = __VERIFIER_nondet_int(); [L21] int s__rwstate ; [L22] int s__init_buf___0 ; [L23] int s__debug = __VERIFIER_nondet_int(); [L24] int s__shutdown ; [L25] int s__cert = __VERIFIER_nondet_int(); [L26] int s__options = __VERIFIER_nondet_int(); [L27] int s__verify_mode = __VERIFIER_nondet_int(); [L28] int s__session__peer = __VERIFIER_nondet_int(); [L29] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int(); [L30] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L31] int s__ctx__stats__sess_accept_renegotiate ; [L32] int s__ctx__stats__sess_accept ; [L33] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int(); [L34] int s__s3__tmp__cert_request ; [L35] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__use_rsa_tmp ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int(); [L41] int s__session__cipher ; [L42] int buf = __VERIFIER_nondet_int(); [L43] unsigned long l ; [L44] unsigned long Time ; [L45] unsigned long tmp = __VERIFIER_nondet_ulong(); [L46] int cb ; [L47] long num1 ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int got_new_session ; [L53] int tmp___1 = __VERIFIER_nondet_int(); [L54] int tmp___2 = __VERIFIER_nondet_int(); [L55] int tmp___3 ; [L56] int tmp___4 ; [L57] int tmp___5 ; [L58] int tmp___6 ; [L59] int tmp___7 ; [L60] long tmp___8 = __VERIFIER_nondet_long(); [L61] int tmp___9 ; [L62] int tmp___10 ; [L63] int blastFlag ; [L64] int __retres67 ; [L67] s__state = initial_state [L68] blastFlag = 0 [L69] Time = tmp [L70] cb = 0 [L71] ret = -1 [L72] skip = 0 [L73] got_new_session = 0 [L74] COND TRUE s__info_callback != 0 [L75] cb = s__info_callback [L83] s__in_handshake + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 130 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 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! Received shutdown request...