./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_45_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --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 64bit --witnessprinter.graph.data.programhash 4671864cdd98fade30eb9ce8efc5288fd25e2d9744d3481098bbdc1c4984e73b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:01:29,666 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:01:29,819 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-25 00:01:29,828 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:01:29,830 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:01:29,866 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:01:29,866 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:01:29,867 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:01:29,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:01:29,876 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:01:29,876 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:01:29,877 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:01:29,877 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:01:29,879 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:01:29,880 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:01:29,880 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:01:29,881 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:01:29,881 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:01:29,881 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:01:29,882 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:01:29,882 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:01:29,883 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:01:29,884 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:01:29,885 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:01:29,885 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:01:29,886 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:01:29,886 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:01:29,886 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:01:29,887 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:01:29,887 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-25 00:01:29,889 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:01:29,889 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:01:29,889 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:01:29,889 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:01:29,890 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:01:29,890 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:01:29,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:29,890 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:01:29,891 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:01:29,892 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:01:29,892 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:01:29,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:01:29,893 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:01:29,893 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:01:29,893 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:01:29,894 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:01:29,894 INFO L153 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_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4671864cdd98fade30eb9ce8efc5288fd25e2d9744d3481098bbdc1c4984e73b [2023-11-25 00:01:30,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:01:30,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:01:30,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:01:30,282 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:01:30,283 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:01:30,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_45_bad.i [2023-11-25 00:01:33,383 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:01:33,818 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:01:33,818 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_45_bad.i [2023-11-25 00:01:33,849 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/data/a319c5e11/e5ae5c2f0c0d4ab881b14cfac2ba8188/FLAG8ca361d7e [2023-11-25 00:01:33,871 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/data/a319c5e11/e5ae5c2f0c0d4ab881b14cfac2ba8188 [2023-11-25 00:01:33,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:01:33,879 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:01:33,880 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:33,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:01:33,886 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:01:33,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:33" (1/1) ... [2023-11-25 00:01:33,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20710c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:33, skipping insertion in model container [2023-11-25 00:01:33,891 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:33" (1/1) ... [2023-11-25 00:01:34,002 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:01:35,059 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:35,074 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:01:35,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:35,294 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:35,295 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:35,295 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:35,295 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:35,303 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:01:35,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:35 WrapperNode [2023-11-25 00:01:35,304 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:35,305 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:35,305 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:01:35,306 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:01:35,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:35" (1/1) ... [2023-11-25 00:01:35,356 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:35" (1/1) ... [2023-11-25 00:01:35,393 INFO L138 Inliner]: procedures = 499, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 53 [2023-11-25 00:01:35,394 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:35,395 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:01:35,395 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:01:35,395 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:01:35,405 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:35" (1/1) ... [2023-11-25 00:01:35,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:35" (1/1) ... [2023-11-25 00:01:35,422 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:35" (1/1) ... [2023-11-25 00:01:35,424 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:35" (1/1) ... [2023-11-25 00:01:35,429 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:35" (1/1) ... [2023-11-25 00:01:35,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:35" (1/1) ... [2023-11-25 00:01:35,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:35" (1/1) ... [2023-11-25 00:01:35,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:35" (1/1) ... [2023-11-25 00:01:35,448 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:01:35,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:01:35,462 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:01:35,462 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:01:35,463 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:35" (1/1) ... [2023-11-25 00:01:35,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:35,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:01:35,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:01:35,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:01:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-25 00:01:35,544 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-25 00:01:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:01:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:01:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:01:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:01:35,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:01:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:01:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-25 00:01:35,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:01:35,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:01:35,697 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:01:35,699 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:01:35,818 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:01:35,864 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:01:35,865 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-25 00:01:35,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:35 BoogieIcfgContainer [2023-11-25 00:01:35,867 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:01:35,870 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:01:35,870 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:01:35,874 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:01:35,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:01:33" (1/3) ... [2023-11-25 00:01:35,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb1f060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:35, skipping insertion in model container [2023-11-25 00:01:35,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:35" (2/3) ... [2023-11-25 00:01:35,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb1f060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:35, skipping insertion in model container [2023-11-25 00:01:35,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:35" (3/3) ... [2023-11-25 00:01:35,881 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_45_bad.i [2023-11-25 00:01:35,901 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:01:35,901 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-25 00:01:35,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:01:35,958 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7eb99a99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:01:35,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-25 00:01:35,962 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-25 00:01:35,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-25 00:01:35,970 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:35,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-25 00:01:35,971 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-25 00:01:35,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:35,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1830714995, now seen corresponding path program 1 times [2023-11-25 00:01:35,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:01:35,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637466001] [2023-11-25 00:01:35,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:35,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:01:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:01:36,195 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-25 00:01:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:01:36,273 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-25 00:01:36,277 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-25 00:01:36,278 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-25 00:01:36,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-25 00:01:36,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:01:36,288 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-25 00:01:36,293 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:01:36,310 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-11-25 00:01:36,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:01:36 BoogieIcfgContainer [2023-11-25 00:01:36,326 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:01:36,326 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:01:36,326 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:01:36,327 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:01:36,327 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:35" (3/4) ... [2023-11-25 00:01:36,329 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-25 00:01:36,330 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:01:36,331 INFO L158 Benchmark]: Toolchain (without parser) took 2452.37ms. Allocated memory is still 151.0MB. Free memory was 108.2MB in the beginning and 111.9MB in the end (delta: -3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:36,332 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 115.3MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:36,333 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1423.98ms. Allocated memory is still 151.0MB. Free memory was 108.2MB in the beginning and 70.8MB in the end (delta: 37.4MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-25 00:01:36,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.12ms. Allocated memory is still 151.0MB. Free memory was 70.8MB in the beginning and 67.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-25 00:01:36,335 INFO L158 Benchmark]: Boogie Preprocessor took 66.00ms. Allocated memory is still 151.0MB. Free memory was 67.4MB in the beginning and 66.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:01:36,341 INFO L158 Benchmark]: RCFGBuilder took 405.30ms. Allocated memory is still 151.0MB. Free memory was 66.0MB in the beginning and 51.9MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-25 00:01:36,342 INFO L158 Benchmark]: TraceAbstraction took 456.09ms. Allocated memory is still 151.0MB. Free memory was 51.3MB in the beginning and 111.9MB in the end (delta: -60.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:36,343 INFO L158 Benchmark]: Witness Printer took 3.92ms. Allocated memory is still 151.0MB. Free memory was 111.9MB in the beginning and 111.9MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:36,350 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 115.3MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1423.98ms. Allocated memory is still 151.0MB. Free memory was 108.2MB in the beginning and 70.8MB in the end (delta: 37.4MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.12ms. Allocated memory is still 151.0MB. Free memory was 70.8MB in the beginning and 67.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.00ms. Allocated memory is still 151.0MB. Free memory was 67.4MB in the beginning and 66.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 405.30ms. Allocated memory is still 151.0MB. Free memory was 66.0MB in the beginning and 51.9MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 456.09ms. Allocated memory is still 151.0MB. Free memory was 51.3MB in the beginning and 111.9MB in the end (delta: -60.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.92ms. Allocated memory is still 151.0MB. Free memory was 111.9MB in the beginning and 111.9MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet102 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1570. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int CWE191_Integer_Underflow__int_fscanf_sub_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fscanf_sub_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fscanf_sub_45_goodB2GData; [L1570] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fscanf_sub_45_badData=0, CWE191_Integer_Underflow__int_fscanf_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fscanf_sub_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1570] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fscanf_sub_45_badData=0, CWE191_Integer_Underflow__int_fscanf_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fscanf_sub_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741826, argc=1073741826, argv={1073741828:1073741827}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL CWE191_Integer_Underflow__int_fscanf_sub_45_bad() [L1561] int data; [L1562] data = 0 [L1564] EXPR \read(data) [L1564] CWE191_Integer_Underflow__int_fscanf_sub_45_badData = data [L1565] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fscanf_sub_45_badData; VAL [CWE191_Integer_Underflow__int_fscanf_sub_45_badData=-2147483648, CWE191_Integer_Underflow__int_fscanf_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fscanf_sub_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] data - 1 VAL [CWE191_Integer_Underflow__int_fscanf_sub_45_badData=-2147483648, CWE191_Integer_Underflow__int_fscanf_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fscanf_sub_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 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 could not prove your program: unable to determine feasibility of some traces [2023-11-25 00:01:36,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --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 64bit --witnessprinter.graph.data.programhash 4671864cdd98fade30eb9ce8efc5288fd25e2d9744d3481098bbdc1c4984e73b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:01:39,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:01:39,170 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-25 00:01:39,181 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:01:39,182 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:01:39,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:01:39,235 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:01:39,236 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:01:39,237 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:01:39,242 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:01:39,243 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:01:39,244 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:01:39,244 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:01:39,246 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:01:39,246 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:01:39,247 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:01:39,248 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:01:39,249 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:01:39,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:01:39,250 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:01:39,251 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:01:39,251 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:01:39,252 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-25 00:01:39,252 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-25 00:01:39,253 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-25 00:01:39,253 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-25 00:01:39,254 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:01:39,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:01:39,255 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:01:39,255 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:01:39,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-25 00:01:39,257 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:01:39,257 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:01:39,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:39,258 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:01:39,258 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:01:39,259 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:01:39,259 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-25 00:01:39,259 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-25 00:01:39,260 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:01:39,260 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:01:39,261 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:01:39,261 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:01:39,261 INFO L153 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_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4671864cdd98fade30eb9ce8efc5288fd25e2d9744d3481098bbdc1c4984e73b [2023-11-25 00:01:39,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:01:39,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:01:39,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:01:39,720 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:01:39,723 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:01:39,724 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_45_bad.i [2023-11-25 00:01:42,990 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:01:43,482 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:01:43,485 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_45_bad.i [2023-11-25 00:01:43,523 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/data/edfa5898e/a303645ea1074f188fe4a3cc44f6f929/FLAG0e4e3990f [2023-11-25 00:01:43,541 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/data/edfa5898e/a303645ea1074f188fe4a3cc44f6f929 [2023-11-25 00:01:43,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:01:43,549 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:01:43,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:43,553 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:01:43,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:01:43,559 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:43" (1/1) ... [2023-11-25 00:01:43,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eafeb93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:43, skipping insertion in model container [2023-11-25 00:01:43,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:43" (1/1) ... [2023-11-25 00:01:43,652 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:01:44,765 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:44,781 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:01:44,926 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:45,045 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:45,045 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:45,045 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:45,045 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:01:45,054 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:01:45,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:45 WrapperNode [2023-11-25 00:01:45,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:45,075 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:45,075 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:01:45,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:01:45,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:45" (1/1) ... [2023-11-25 00:01:45,112 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:45" (1/1) ... [2023-11-25 00:01:45,137 INFO L138 Inliner]: procedures = 504, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 52 [2023-11-25 00:01:45,138 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:45,138 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:01:45,138 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:01:45,139 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:01:45,148 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:45" (1/1) ... [2023-11-25 00:01:45,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:45" (1/1) ... [2023-11-25 00:01:45,153 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:45" (1/1) ... [2023-11-25 00:01:45,153 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:45" (1/1) ... [2023-11-25 00:01:45,163 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:45" (1/1) ... [2023-11-25 00:01:45,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:45" (1/1) ... [2023-11-25 00:01:45,168 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:45" (1/1) ... [2023-11-25 00:01:45,170 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:45" (1/1) ... [2023-11-25 00:01:45,175 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:01:45,175 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:01:45,176 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:01:45,176 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:01:45,177 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:45" (1/1) ... [2023-11-25 00:01:45,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:45,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:01:45,212 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:01:45,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:01:45,270 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-25 00:01:45,270 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-25 00:01:45,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:01:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-25 00:01:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:01:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:01:45,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:01:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-25 00:01:45,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:01:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-25 00:01:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-25 00:01:45,484 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:01:45,487 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:01:45,740 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:01:45,801 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:01:45,801 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-25 00:01:45,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:45 BoogieIcfgContainer [2023-11-25 00:01:45,803 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:01:45,806 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:01:45,806 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:01:45,809 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:01:45,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:01:43" (1/3) ... [2023-11-25 00:01:45,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@704e5c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:45, skipping insertion in model container [2023-11-25 00:01:45,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:45" (2/3) ... [2023-11-25 00:01:45,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@704e5c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:45, skipping insertion in model container [2023-11-25 00:01:45,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:45" (3/3) ... [2023-11-25 00:01:45,815 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_45_bad.i [2023-11-25 00:01:45,837 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:01:45,838 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-25 00:01:45,902 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:01:45,912 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6737e1cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:01:45,912 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-25 00:01:45,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-25 00:01:45,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-25 00:01:45,926 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:45,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:01:45,927 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-25 00:01:45,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:45,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1506175351, now seen corresponding path program 1 times [2023-11-25 00:01:45,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:01:45,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418405100] [2023-11-25 00:01:45,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:45,953 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:45,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:01:45,956 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:01:46,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-25 00:01:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:01:46,158 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-25 00:01:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:01:46,267 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-25 00:01:46,270 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-25 00:01:46,271 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-25 00:01:46,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-25 00:01:46,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-25 00:01:46,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:01:46,487 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-25 00:01:46,491 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:01:46,520 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-11-25 00:01:46,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:01:46 BoogieIcfgContainer [2023-11-25 00:01:46,533 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:01:46,535 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:01:46,536 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:01:46,536 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:01:46,537 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:45" (3/4) ... [2023-11-25 00:01:46,539 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-25 00:01:46,540 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:01:46,541 INFO L158 Benchmark]: Toolchain (without parser) took 2992.57ms. Allocated memory is still 100.7MB. Free memory was 73.2MB in the beginning and 68.7MB in the end (delta: 4.5MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2023-11-25 00:01:46,542 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 65.0MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:46,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1521.38ms. Allocated memory is still 100.7MB. Free memory was 72.9MB in the beginning and 74.0MB in the end (delta: -1.1MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. [2023-11-25 00:01:46,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.47ms. Allocated memory is still 100.7MB. Free memory was 74.0MB in the beginning and 71.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:01:46,545 INFO L158 Benchmark]: Boogie Preprocessor took 36.49ms. Allocated memory is still 100.7MB. Free memory was 71.3MB in the beginning and 69.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:01:46,550 INFO L158 Benchmark]: RCFGBuilder took 628.30ms. Allocated memory is still 100.7MB. Free memory was 69.2MB in the beginning and 53.0MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-25 00:01:46,551 INFO L158 Benchmark]: TraceAbstraction took 727.28ms. Allocated memory is still 100.7MB. Free memory was 52.5MB in the beginning and 69.3MB in the end (delta: -16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-25 00:01:46,552 INFO L158 Benchmark]: Witness Printer took 4.50ms. Allocated memory is still 100.7MB. Free memory was 69.3MB in the beginning and 68.7MB in the end (delta: 633.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:46,561 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 65.0MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1521.38ms. Allocated memory is still 100.7MB. Free memory was 72.9MB in the beginning and 74.0MB in the end (delta: -1.1MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.47ms. Allocated memory is still 100.7MB. Free memory was 74.0MB in the beginning and 71.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.49ms. Allocated memory is still 100.7MB. Free memory was 71.3MB in the beginning and 69.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 628.30ms. Allocated memory is still 100.7MB. Free memory was 69.2MB in the beginning and 53.0MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 727.28ms. Allocated memory is still 100.7MB. Free memory was 52.5MB in the beginning and 69.3MB in the end (delta: -16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.50ms. Allocated memory is still 100.7MB. Free memory was 69.3MB in the beginning and 68.7MB in the end (delta: 633.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet100 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1570. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int CWE191_Integer_Underflow__int_fscanf_sub_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fscanf_sub_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fscanf_sub_45_goodB2GData; [L1570] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fscanf_sub_45_badData=0, CWE191_Integer_Underflow__int_fscanf_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fscanf_sub_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1570] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fscanf_sub_45_badData=0, CWE191_Integer_Underflow__int_fscanf_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fscanf_sub_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL CWE191_Integer_Underflow__int_fscanf_sub_45_bad() [L1561] int data; [L1562] data = 0 [L1564] EXPR \read(data) [L1564] CWE191_Integer_Underflow__int_fscanf_sub_45_badData = data [L1565] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fscanf_sub_45_badData; VAL [CWE191_Integer_Underflow__int_fscanf_sub_45_badData=-2147483648, CWE191_Integer_Underflow__int_fscanf_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fscanf_sub_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] data - 1 VAL [CWE191_Integer_Underflow__int_fscanf_sub_45_badData=-2147483648, CWE191_Integer_Underflow__int_fscanf_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fscanf_sub_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 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 could not prove your program: unable to determine feasibility of some traces [2023-11-25 00:01:46,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2516588e-cedc-484b-957b-cee3aaf9b862/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample