./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d01e5734484b774633bc0c183d9438fdb6324f1b ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d01e5734484b774633bc0c183d9438fdb6324f1b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:13:20,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:13:20,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:13:20,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:13:20,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:13:20,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:13:20,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:13:20,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:13:20,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:13:20,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:13:20,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:13:20,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:13:20,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:13:20,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:13:20,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:13:20,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:13:20,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:13:20,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:13:20,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:13:20,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:13:20,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:13:20,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:13:20,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:13:20,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:13:20,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:13:20,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:13:20,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:13:20,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:13:20,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:13:20,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:13:20,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:13:20,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:13:20,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:13:20,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:13:20,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:13:20,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:13:20,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:13:20,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:13:20,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:13:20,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:13:20,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:13:20,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 02:13:20,541 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:13:20,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:13:20,543 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:13:20,543 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:13:20,543 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:13:20,544 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:13:20,544 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:13:20,544 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:13:20,544 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:13:20,545 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:13:20,545 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:13:20,545 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:13:20,545 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:13:20,546 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:13:20,546 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:13:20,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:13:20,547 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:13:20,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:13:20,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:13:20,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:13:20,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:13:20,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:13:20,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:13:20,548 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:13:20,549 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:13:20,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:13:20,549 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:13:20,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:13:20,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:13:20,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:13:20,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:13:20,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:13:20,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:13:20,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:13:20,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:13:20,551 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:13:20,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:13:20,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:13:20,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:13:20,552 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:13:20,552 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_649b01cf-5cd0-4bfb-af1e-458894ceb59f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d01e5734484b774633bc0c183d9438fdb6324f1b [2020-11-30 02:13:20,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:13:20,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:13:20,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:13:20,845 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:13:20,845 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:13:20,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/../../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-1.c [2020-11-30 02:13:20,940 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/data/6a65dd4bb/4472c803fdac4443a47993c3b4695b3a/FLAG32405ebb8 [2020-11-30 02:13:21,675 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:13:21,676 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-1.c [2020-11-30 02:13:21,724 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/data/6a65dd4bb/4472c803fdac4443a47993c3b4695b3a/FLAG32405ebb8 [2020-11-30 02:13:21,867 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/data/6a65dd4bb/4472c803fdac4443a47993c3b4695b3a [2020-11-30 02:13:21,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:13:21,872 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:13:21,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:13:21,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:13:21,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:13:21,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:13:21" (1/1) ... [2020-11-30 02:13:21,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f74c5c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:21, skipping insertion in model container [2020-11-30 02:13:21,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:13:21" (1/1) ... [2020-11-30 02:13:21,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:13:21,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:13:22,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:13:22,562 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-30 02:13:22,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@448a1d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:22, skipping insertion in model container [2020-11-30 02:13:22,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:13:22,563 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-30 02:13:22,566 INFO L168 Benchmark]: Toolchain (without parser) took 692.74 ms. Allocated memory is still 92.3 MB. Free memory was 56.1 MB in the beginning and 61.3 MB in the end (delta: -5.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 02:13:22,567 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory was 62.5 MB in the beginning and 62.4 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:13:22,568 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.25 ms. Allocated memory is still 92.3 MB. Free memory was 55.8 MB in the beginning and 61.3 MB in the end (delta: -5.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 02:13:22,570 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory was 62.5 MB in the beginning and 62.4 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 689.25 ms. Allocated memory is still 92.3 MB. Free memory was 55.8 MB in the beginning and 61.3 MB in the end (delta: -5.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1040]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:13:25,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:13:25,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:13:25,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:13:25,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:13:25,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:13:25,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:13:25,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:13:25,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:13:25,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:13:25,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:13:25,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:13:25,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:13:25,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:13:25,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:13:25,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:13:25,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:13:25,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:13:25,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:13:25,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:13:25,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:13:25,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:13:25,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:13:25,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:13:25,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:13:25,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:13:25,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:13:25,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:13:25,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:13:25,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:13:25,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:13:25,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:13:25,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:13:25,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:13:25,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:13:25,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:13:25,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:13:25,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:13:25,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:13:25,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:13:25,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:13:25,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 02:13:25,451 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:13:25,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:13:25,454 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:13:25,455 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:13:25,455 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:13:25,455 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:13:25,455 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:13:25,456 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:13:25,456 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:13:25,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:13:25,460 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:13:25,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:13:25,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:13:25,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:13:25,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:13:25,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:13:25,461 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:13:25,462 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 02:13:25,462 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 02:13:25,462 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:13:25,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:13:25,462 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:13:25,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:13:25,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:13:25,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 02:13:25,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:13:25,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:13:25,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:13:25,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:13:25,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:13:25,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:13:25,465 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 02:13:25,465 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 02:13:25,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:13:25,466 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:13:25,486 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:13:25,486 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_649b01cf-5cd0-4bfb-af1e-458894ceb59f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d01e5734484b774633bc0c183d9438fdb6324f1b [2020-11-30 02:13:25,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:13:25,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:13:25,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:13:25,989 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:13:25,991 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:13:25,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/../../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-1.c [2020-11-30 02:13:26,065 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/data/6c49fe44e/2d3a9964c05245948e8773f1f5fd6b1c/FLAGd7f084302 [2020-11-30 02:13:26,896 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:13:26,897 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-1.c [2020-11-30 02:13:26,919 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/data/6c49fe44e/2d3a9964c05245948e8773f1f5fd6b1c/FLAGd7f084302 [2020-11-30 02:13:27,073 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/data/6c49fe44e/2d3a9964c05245948e8773f1f5fd6b1c [2020-11-30 02:13:27,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:13:27,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:13:27,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:13:27,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:13:27,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:13:27,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:13:27" (1/1) ... [2020-11-30 02:13:27,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bff494b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:27, skipping insertion in model container [2020-11-30 02:13:27,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:13:27" (1/1) ... [2020-11-30 02:13:27,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:13:27,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:13:27,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:13:27,706 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-30 02:13:27,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:13:27,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:13:27,902 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:13:28,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:13:28,041 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:13:28,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:28 WrapperNode [2020-11-30 02:13:28,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:13:28,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:13:28,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:13:28,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:13:28,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:28" (1/1) ... [2020-11-30 02:13:28,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:28" (1/1) ... [2020-11-30 02:13:28,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:13:28,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:13:28,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:13:28,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:13:28,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:28" (1/1) ... [2020-11-30 02:13:28,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:28" (1/1) ... [2020-11-30 02:13:28,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:28" (1/1) ... [2020-11-30 02:13:28,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:28" (1/1) ... [2020-11-30 02:13:28,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:28" (1/1) ... [2020-11-30 02:13:28,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:28" (1/1) ... [2020-11-30 02:13:28,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:28" (1/1) ... [2020-11-30 02:13:28,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:13:28,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:13:28,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:13:28,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:13:28,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/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 [2020-11-30 02:13:28,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 02:13:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-30 02:13:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:13:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 02:13:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-30 02:13:28,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 02:13:28,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:13:28,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:13:28,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 02:13:28,766 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 02:13:42,396 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-11-30 02:13:42,396 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-11-30 02:13:42,411 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:13:42,411 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 02:13:42,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:13:42 BoogieIcfgContainer [2020-11-30 02:13:42,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:13:42,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:13:42,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:13:42,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:13:42,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:13:27" (1/3) ... [2020-11-30 02:13:42,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7379b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:13:42, skipping insertion in model container [2020-11-30 02:13:42,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:13:28" (2/3) ... [2020-11-30 02:13:42,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7379b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:13:42, skipping insertion in model container [2020-11-30 02:13:42,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:13:42" (3/3) ... [2020-11-30 02:13:42,424 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.01.i.cil-1.c [2020-11-30 02:13:42,438 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:13:42,443 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:13:42,458 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 02:13:42,507 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:13:42,508 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:13:42,508 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:13:42,508 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:13:42,508 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:13:42,509 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:13:42,509 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:13:42,509 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:13:42,534 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2020-11-30 02:13:42,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 02:13:42,545 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:13:42,546 INFO L422 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] [2020-11-30 02:13:42,546 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:13:42,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:13:42,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1457703966, now seen corresponding path program 1 times [2020-11-30 02:13:42,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:13:42,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373441522] [2020-11-30 02:13:42,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 02:13:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:13:42,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 02:13:42,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:13:42,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:13:42,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:13:43,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:13:43,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373441522] [2020-11-30 02:13:43,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:13:43,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 02:13:43,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536660510] [2020-11-30 02:13:43,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:13:43,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:13:43,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:13:43,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:13:43,047 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 4 states. [2020-11-30 02:13:43,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:13:43,303 INFO L93 Difference]: Finished difference Result 497 states and 830 transitions. [2020-11-30 02:13:43,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:13:43,310 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-30 02:13:43,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:13:43,332 INFO L225 Difference]: With dead ends: 497 [2020-11-30 02:13:43,332 INFO L226 Difference]: Without dead ends: 321 [2020-11-30 02:13:43,337 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:13:43,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-11-30 02:13:43,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2020-11-30 02:13:43,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-11-30 02:13:43,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 478 transitions. [2020-11-30 02:13:43,427 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 478 transitions. Word has length 24 [2020-11-30 02:13:43,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:13:43,428 INFO L481 AbstractCegarLoop]: Abstraction has 321 states and 478 transitions. [2020-11-30 02:13:43,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:13:43,428 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 478 transitions. [2020-11-30 02:13:43,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-11-30 02:13:43,434 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:13:43,434 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:13:43,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 02:13:43,641 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:13:43,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:13:43,642 INFO L82 PathProgramCache]: Analyzing trace with hash 908084980, now seen corresponding path program 1 times [2020-11-30 02:13:43,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:13:43,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638860866] [2020-11-30 02:13:43,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 02:13:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:13:43,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 02:13:43,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:13:43,997 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:13:43,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:13:44,022 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:13:44,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638860866] [2020-11-30 02:13:44,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:13:44,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 02:13:44,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714530554] [2020-11-30 02:13:44,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:13:44,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:13:44,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:13:44,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:13:44,027 INFO L87 Difference]: Start difference. First operand 321 states and 478 transitions. Second operand 4 states. [2020-11-30 02:13:46,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:13:46,236 INFO L93 Difference]: Finished difference Result 736 states and 1103 transitions. [2020-11-30 02:13:46,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:13:46,240 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 65 [2020-11-30 02:13:46,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:13:46,246 INFO L225 Difference]: With dead ends: 736 [2020-11-30 02:13:46,247 INFO L226 Difference]: Without dead ends: 525 [2020-11-30 02:13:46,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:13:46,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2020-11-30 02:13:46,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2020-11-30 02:13:46,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2020-11-30 02:13:46,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 779 transitions. [2020-11-30 02:13:46,326 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 779 transitions. Word has length 65 [2020-11-30 02:13:46,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:13:46,329 INFO L481 AbstractCegarLoop]: Abstraction has 525 states and 779 transitions. [2020-11-30 02:13:46,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:13:46,329 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 779 transitions. [2020-11-30 02:13:46,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-11-30 02:13:46,338 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:13:46,338 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2020-11-30 02:13:46,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 02:13:46,542 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:13:46,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:13:46,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1159650437, now seen corresponding path program 1 times [2020-11-30 02:13:46,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:13:46,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997312009] [2020-11-30 02:13:46,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 02:13:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:13:46,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 02:13:46,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:13:47,000 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-11-30 02:13:47,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:13:47,041 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-11-30 02:13:47,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997312009] [2020-11-30 02:13:47,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:13:47,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 02:13:47,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847706994] [2020-11-30 02:13:47,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:13:47,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:13:47,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:13:47,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:13:47,055 INFO L87 Difference]: Start difference. First operand 525 states and 779 transitions. Second operand 4 states. [2020-11-30 02:13:49,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:13:49,252 INFO L93 Difference]: Finished difference Result 1147 states and 1708 transitions. [2020-11-30 02:13:49,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:13:49,253 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 104 [2020-11-30 02:13:49,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:13:49,259 INFO L225 Difference]: With dead ends: 1147 [2020-11-30 02:13:49,259 INFO L226 Difference]: Without dead ends: 732 [2020-11-30 02:13:49,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:13:49,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2020-11-30 02:13:49,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2020-11-30 02:13:49,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2020-11-30 02:13:49,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1083 transitions. [2020-11-30 02:13:49,319 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1083 transitions. Word has length 104 [2020-11-30 02:13:49,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:13:49,322 INFO L481 AbstractCegarLoop]: Abstraction has 732 states and 1083 transitions. [2020-11-30 02:13:49,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:13:49,322 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1083 transitions. [2020-11-30 02:13:49,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-11-30 02:13:49,329 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:13:49,330 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:13:49,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 02:13:49,545 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:13:49,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:13:49,545 INFO L82 PathProgramCache]: Analyzing trace with hash 876212838, now seen corresponding path program 1 times [2020-11-30 02:13:49,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:13:49,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1275597573] [2020-11-30 02:13:49,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-30 02:13:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:13:50,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 02:13:50,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:13:50,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 02:13:50,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 02:13:50,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 02:13:50,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 02:13:50,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 02:13:50,326 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-30 02:28:15,042 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-11-30 02:28:15,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1275597573] [2020-11-30 02:28:15,043 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") [2020-11-30 02:28:15,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1028352890] [2020-11-30 02:28:15,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-30 02:28:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:28:16,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 02:28:16,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:28:16,480 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken [2020-11-30 02:28:16,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826144573] [2020-11-30 02:28:16,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_649b01cf-5cd0-4bfb-af1e-458894ceb59f/bin/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:28:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:28:16,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 02:28:16,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:28:16,757 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@17d59783 [2020-11-30 02:28:16,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:28:16,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-11-30 02:28:16,760 ERROR L205 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2020-11-30 02:28:16,760 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 02:28:17,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3,6 cvc4 --incremental --print-success --lang smt --rewrite-divk,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 02:28:17,418 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-11-30 02:28:17,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:28:17 BoogieIcfgContainer [2020-11-30 02:28:17,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:28:17,419 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:28:17,420 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:28:17,420 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:28:17,420 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:13:42" (3/4) ... [2020-11-30 02:28:17,423 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 02:28:17,424 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:28:17,425 INFO L168 Benchmark]: Toolchain (without parser) took 890347.77 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 54.4 MB in the beginning and 29.9 MB in the end (delta: 24.5 MB). Peak memory consumption was 48.4 MB. Max. memory is 16.1 GB. [2020-11-30 02:28:17,426 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 71.3 MB. Free memory is still 54.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:28:17,426 INFO L168 Benchmark]: CACSL2BoogieTranslator took 961.98 ms. Allocated memory is still 71.3 MB. Free memory was 54.1 MB in the beginning and 46.6 MB in the end (delta: 7.5 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. [2020-11-30 02:28:17,427 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.92 ms. Allocated memory is still 71.3 MB. Free memory was 46.6 MB in the beginning and 42.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:28:17,427 INFO L168 Benchmark]: Boogie Preprocessor took 74.62 ms. Allocated memory is still 71.3 MB. Free memory was 42.4 MB in the beginning and 35.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 02:28:17,428 INFO L168 Benchmark]: RCFGBuilder took 14174.14 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 35.8 MB in the beginning and 60.9 MB in the end (delta: -25.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:28:17,429 INFO L168 Benchmark]: TraceAbstraction took 875002.06 ms. Allocated memory is still 96.5 MB. Free memory was 60.2 MB in the beginning and 29.9 MB in the end (delta: 30.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. [2020-11-30 02:28:17,429 INFO L168 Benchmark]: Witness Printer took 4.23 ms. Allocated memory is still 96.5 MB. Free memory is still 29.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:28:17,432 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 71.3 MB. Free memory is still 54.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 961.98 ms. Allocated memory is still 71.3 MB. Free memory was 54.1 MB in the beginning and 46.6 MB in the end (delta: 7.5 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 105.92 ms. Allocated memory is still 71.3 MB. Free memory was 46.6 MB in the beginning and 42.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.62 ms. Allocated memory is still 71.3 MB. Free memory was 42.4 MB in the beginning and 35.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 14174.14 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 35.8 MB in the beginning and 60.9 MB in the end (delta: -25.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 875002.06 ms. Allocated memory is still 96.5 MB. Free memory was 60.2 MB in the beginning and 29.9 MB in the end (delta: 30.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.23 ms. Allocated memory is still 96.5 MB. Free memory is still 29.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L1044] static int init = 1; [L1045] static SSL_METHOD SSLv3_client_data ; [L1067] SSL *s = (SSL*)malloc(sizeof(SSL)) ; [L1071] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1072] s->ctx = malloc(sizeof(SSL_CTX)) [L1073] s->session = malloc(sizeof(SSL_SESSION)) [L1074] s->state = 12292 [L1075] s->version = __VERIFIER_nondet_int() [L1082] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1083] unsigned long tmp ; [L1084] unsigned long l ; [L1085] long num1 ; [L1086] void (*cb)() ; [L1087] int ret ; [L1088] int new_state ; [L1089] int state ; [L1090] int skip ; [L1091] int tmp___1 = __VERIFIER_nondet_int() ; [L1092] int tmp___2 = __VERIFIER_nondet_int() ; [L1093] int tmp___3 ; [L1094] int tmp___4 ; [L1095] int tmp___5 ; [L1096] int tmp___6 ; [L1097] int tmp___7 ; [L1098] int tmp___8 ; [L1099] long tmp___9 ; [L1101] int blastFlag ; [L1104] blastFlag = 0 [L1105] s->hit=__VERIFIER_nondet_int () [L1106] s->state = 12292 [L1107] tmp = __VERIFIER_nondet_int() [L1108] cb = (void (*)())((void *)0) [L1109] ret = -1 [L1110] skip = 0 [L1111] EXPR s->info_callback [L1111] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1112] EXPR s->info_callback [L1112] cb = s->info_callback [L1120] EXPR s->in_handshake [L1120] s->in_handshake += 1 [L1121] COND FALSE !(tmp___1 & 12288) [L1131] COND TRUE 1 [L1133] EXPR s->state [L1133] state = s->state [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 12292) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 16384) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 4096) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 20480) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4099) [L1149] EXPR s->state [L1149] COND TRUE s->state == 4368 [L1289] s->shutdown = 0 [L1290] ret = __VERIFIER_nondet_int() [L1291] COND TRUE blastFlag == 0 [L1292] blastFlag = 1 [L1296] COND FALSE !(ret <= 0) [L1301] s->state = 4384 [L1302] s->init_num = 0 [L1303] EXPR s->bbio [L1303] EXPR s->wbio [L1303] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1605] EXPR s->s3 [L1605] EXPR (s->s3)->tmp.reuse_message [L1605] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1634] skip = 0 [L1131] COND TRUE 1 [L1133] EXPR s->state [L1133] state = s->state [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 12292) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 16384) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 4096) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 20480) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4099) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 4368) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4369) [L1155] EXPR s->state [L1155] COND TRUE s->state == 4384 [L1311] ret = __VERIFIER_nondet_int() [L1312] COND TRUE blastFlag == 1 [L1313] blastFlag = 2 [L1317] COND FALSE !(ret <= 0) [L1322] s->hit [L1322] COND TRUE s->hit [L1323] s->state = 4560 [L1327] s->init_num = 0 [L1605] EXPR s->s3 [L1605] EXPR (s->s3)->tmp.reuse_message [L1605] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1634] skip = 0 [L1131] COND TRUE 1 [L1133] EXPR s->state [L1133] state = s->state [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 12292) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 16384) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 4096) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 20480) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4099) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 4368) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4369) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 4384) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4385) [L1161] EXPR s->state [L1161] COND TRUE s->state == 4400 [L1331] EXPR s->s3 [L1331] EXPR (s->s3)->tmp.new_cipher [L1331] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1331] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1334] ret = __VERIFIER_nondet_int() [L1335] COND TRUE blastFlag == 2 [L1336] blastFlag = 3 [L1340] COND FALSE !(ret <= 0) [L1346] s->state = 4416 [L1347] s->init_num = 0 [L1605] EXPR s->s3 [L1605] EXPR (s->s3)->tmp.reuse_message [L1605] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1634] skip = 0 [L1131] COND TRUE 1 [L1133] EXPR s->state [L1133] state = s->state [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 12292) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 16384) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 4096) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 20480) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4099) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 4368) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4369) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 4384) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4385) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4400) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4401) [L1167] EXPR s->state [L1167] COND TRUE s->state == 4416 [L1351] ret = __VERIFIER_nondet_int() [L1352] COND TRUE blastFlag == 3 [L1353] blastFlag = 4 [L1357] COND FALSE !(ret <= 0) [L1362] s->state = 4432 [L1363] s->init_num = 0 [L1364] tmp___6 = __VERIFIER_nondet_int() [L1365] COND FALSE !(! tmp___6) [L1605] EXPR s->s3 [L1605] EXPR (s->s3)->tmp.reuse_message [L1605] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1634] skip = 0 [L1131] COND TRUE 1 [L1133] EXPR s->state [L1133] state = s->state [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 12292) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 16384) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 4096) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 20480) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4099) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 4368) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4369) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 4384) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4385) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4400) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4401) [L1167] EXPR s->state [L1167] COND FALSE !(s->state == 4416) [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 4417) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 4432) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 4433) [L1179] EXPR s->state [L1179] COND TRUE s->state == 4448 [L1390] ret = __VERIFIER_nondet_int() [L1391] COND TRUE blastFlag == 4 [L1392] blastFlag = 5 [L1396] COND FALSE !(ret <= 0) [L1401] EXPR s->s3 [L1401] (s->s3)->tmp.cert_req [L1401] COND TRUE (s->s3)->tmp.cert_req [L1402] s->state = 4464 [L1406] s->init_num = 0 [L1605] EXPR s->s3 [L1605] EXPR (s->s3)->tmp.reuse_message [L1605] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1634] skip = 0 [L1131] COND TRUE 1 [L1133] EXPR s->state [L1133] state = s->state [L1134] EXPR s->state [L1134] COND FALSE !(s->state == 12292) [L1137] EXPR s->state [L1137] COND FALSE !(s->state == 16384) [L1140] EXPR s->state [L1140] COND FALSE !(s->state == 4096) [L1143] EXPR s->state [L1143] COND FALSE !(s->state == 20480) [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 4099) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 4368) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4369) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 4384) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4385) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4400) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4401) [L1167] EXPR s->state [L1167] COND FALSE !(s->state == 4416) [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 4417) [L1173] EXPR s->state [L1173] COND TRUE s->state == 4432 [L1374] ret = __VERIFIER_nondet_int() [L1375] COND TRUE blastFlag == 5 [L3] __assert_fail("0", "s3_clnt.blast.01.i.cil-1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 132 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 874.8s, OverallIterations: 4, TraceHistogramMax: 6, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 810 SDtfs, 1079 SDslu, 987 SDs, 0 SdLazy, 92 SolverSat, 36 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 380 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=732occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 193 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 380 ConstructedInterpolants, 0 QuantifiedInterpolants, 52213 SizeOfPredicates, 1 NumberOfNonLiveVariables, 594 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 318/318 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...