./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_61_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6654a978247a26f59a22fbd291a863dd37efbaeb657752df8958c9b0d5665029 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:01:18,598 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:01:18,661 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 00:01:18,665 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:01:18,665 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:01:18,686 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:01:18,687 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:01:18,687 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:01:18,688 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:01:18,689 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:01:18,689 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:01:18,690 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:01:18,690 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:01:18,691 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:01:18,691 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:01:18,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:01:18,692 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:01:18,693 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:01:18,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:01:18,694 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:01:18,694 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:01:18,695 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:01:18,695 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 00:01:18,696 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:01:18,696 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:01:18,697 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:01:18,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:01:18,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:01:18,698 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:01:18,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:01:18,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:01:18,699 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:01:18,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:01:18,700 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:01:18,700 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:01:18,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:01:18,701 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:01:18,701 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:01:18,701 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:01:18,701 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:01:18,701 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:01:18,702 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6654a978247a26f59a22fbd291a863dd37efbaeb657752df8958c9b0d5665029 [2023-11-29 00:01:18,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:01:18,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:01:18,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:01:18,929 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:01:18,929 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:01:18,930 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_61_bad.i [2023-11-29 00:01:21,716 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:01:22,050 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:01:22,050 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_61_bad.i [2023-11-29 00:01:22,074 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/data/e9d5889de/5224ab774c4646e9810966806d956cdc/FLAG7c6e42460 [2023-11-29 00:01:22,088 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/data/e9d5889de/5224ab774c4646e9810966806d956cdc [2023-11-29 00:01:22,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:01:22,092 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:01:22,094 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:01:22,094 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:01:22,100 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:01:22,100 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:01:22" (1/1) ... [2023-11-29 00:01:22,102 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41ad6711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:22, skipping insertion in model container [2023-11-29 00:01:22,102 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:01:22" (1/1) ... [2023-11-29 00:01:22,151 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:01:22,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:01:22,954 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:01:23,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:01:23,184 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:01:23,184 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:01:23,184 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:01:23,185 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:01:23,193 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:01:23,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:23 WrapperNode [2023-11-29 00:01:23,193 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:01:23,194 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:01:23,195 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:01:23,195 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:01:23,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:23" (1/1) ... [2023-11-29 00:01:23,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:23" (1/1) ... [2023-11-29 00:01:23,263 INFO L138 Inliner]: procedures = 499, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2023-11-29 00:01:23,264 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:01:23,264 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:01:23,264 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:01:23,265 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:01:23,273 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:23" (1/1) ... [2023-11-29 00:01:23,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:23" (1/1) ... [2023-11-29 00:01:23,275 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:23" (1/1) ... [2023-11-29 00:01:23,288 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [1, 3]. 75 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 2 writes are split as follows [0, 2]. [2023-11-29 00:01:23,288 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:23" (1/1) ... [2023-11-29 00:01:23,288 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:23" (1/1) ... [2023-11-29 00:01:23,293 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:23" (1/1) ... [2023-11-29 00:01:23,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:23" (1/1) ... [2023-11-29 00:01:23,296 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:23" (1/1) ... [2023-11-29 00:01:23,297 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:23" (1/1) ... [2023-11-29 00:01:23,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:01:23,300 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:01:23,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:01:23,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:01:23,301 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:23" (1/1) ... [2023-11-29 00:01:23,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:01:23,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:01:23,331 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:01:23,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:01:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 00:01:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 00:01:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:01:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 00:01:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 00:01:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:01:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:01:23,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:01:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:01:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 00:01:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 00:01:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 00:01:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:01:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 00:01:23,502 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:01:23,504 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:01:23,608 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:01:23,644 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:01:23,644 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 00:01:23,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:01:23 BoogieIcfgContainer [2023-11-29 00:01:23,645 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:01:23,647 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:01:23,647 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:01:23,650 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:01:23,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:01:22" (1/3) ... [2023-11-29 00:01:23,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140eee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:01:23, skipping insertion in model container [2023-11-29 00:01:23,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:23" (2/3) ... [2023-11-29 00:01:23,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140eee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:01:23, skipping insertion in model container [2023-11-29 00:01:23,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:01:23" (3/3) ... [2023-11-29 00:01:23,653 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_61_bad.i [2023-11-29 00:01:23,672 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:01:23,672 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 00:01:23,718 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:01:23,725 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=PETRI_NET, 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;@37eae236, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:01:23,726 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 00:01:23,730 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) [2023-11-29 00:01:23,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 00:01:23,737 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:01:23,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:01:23,738 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 00:01:23,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:01:23,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1506176035, now seen corresponding path program 1 times [2023-11-29 00:01:23,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:01:23,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931674014] [2023-11-29 00:01:23,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:01:23,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:01:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:01:23,894 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:01:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:01:23,947 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:01:23,949 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 00:01:23,950 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 00:01:23,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 00:01:23,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:01:23,958 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 00:01:23,962 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 00:01:23,978 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-11-29 00:01:23,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 12:01:23 BoogieIcfgContainer [2023-11-29 00:01:23,988 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 00:01:23,989 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:01:23,989 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:01:23,989 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:01:23,990 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:01:23" (3/4) ... [2023-11-29 00:01:23,992 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 00:01:23,994 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:01:23,995 INFO L158 Benchmark]: Toolchain (without parser) took 1902.25ms. Allocated memory is still 207.6MB. Free memory was 167.8MB in the beginning and 137.8MB in the end (delta: 29.9MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2023-11-29 00:01:23,996 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:01:23,996 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1100.03ms. Allocated memory is still 207.6MB. Free memory was 167.8MB in the beginning and 103.3MB in the end (delta: 64.5MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2023-11-29 00:01:23,997 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.33ms. Allocated memory is still 207.6MB. Free memory was 103.3MB in the beginning and 173.6MB in the end (delta: -70.3MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2023-11-29 00:01:23,998 INFO L158 Benchmark]: Boogie Preprocessor took 35.06ms. Allocated memory is still 207.6MB. Free memory was 173.6MB in the beginning and 170.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 00:01:23,999 INFO L158 Benchmark]: RCFGBuilder took 345.10ms. Allocated memory is still 207.6MB. Free memory was 170.5MB in the beginning and 155.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 00:01:23,999 INFO L158 Benchmark]: TraceAbstraction took 340.81ms. Allocated memory is still 207.6MB. Free memory was 155.8MB in the beginning and 139.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 00:01:24,000 INFO L158 Benchmark]: Witness Printer took 5.01ms. Allocated memory is still 207.6MB. Free memory was 137.9MB in the beginning and 137.8MB in the end (delta: 109.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:01:24,004 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1100.03ms. Allocated memory is still 207.6MB. Free memory was 167.8MB in the beginning and 103.3MB in the end (delta: 64.5MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.33ms. Allocated memory is still 207.6MB. Free memory was 103.3MB in the beginning and 173.6MB in the end (delta: -70.3MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.06ms. Allocated memory is still 207.6MB. Free memory was 173.6MB in the beginning and 170.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 345.10ms. Allocated memory is still 207.6MB. Free memory was 170.5MB in the beginning and 155.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 340.81ms. Allocated memory is still 207.6MB. Free memory was 155.8MB in the beginning and 139.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.01ms. Allocated memory is still 207.6MB. Free memory was 137.9MB in the beginning and 137.8MB in the end (delta: 109.2kB). Peak memory consumption was 2.1MB. 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 1562. 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); [L1562] CALL printLine("Calling bad()...") VAL [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) [L1562] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741825, argc=1073741825, argv={1073741829:1073741827}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] CALL CWE191_Integer_Underflow__int_fscanf_sub_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_fscanf_sub_61b_badSource(data) [L1570] EXPR \read(data) [L1570] return data; [L1570] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_fscanf_sub_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_fscanf_sub_61b_badSource(data) [L1555] data - 1 VAL [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: 0.3s, 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, 0.0s 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 [2023-11-29 00:01:24,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6654a978247a26f59a22fbd291a863dd37efbaeb657752df8958c9b0d5665029 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:01:25,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:01:25,989 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-29 00:01:25,994 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:01:25,994 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:01:25,995 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-29 00:01:26,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:01:26,023 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:01:26,024 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:01:26,024 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:01:26,025 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:01:26,026 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:01:26,026 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:01:26,027 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:01:26,027 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:01:26,028 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:01:26,028 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:01:26,029 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:01:26,030 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:01:26,030 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:01:26,031 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:01:26,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:01:26,032 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 00:01:26,032 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 00:01:26,032 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 00:01:26,033 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 00:01:26,033 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:01:26,034 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:01:26,034 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:01:26,035 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:01:26,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:01:26,036 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:01:26,036 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:01:26,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:01:26,036 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:01:26,037 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:01:26,037 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:01:26,037 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 00:01:26,037 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 00:01:26,038 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:01:26,038 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:01:26,038 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:01:26,038 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:01:26,038 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:01:26,039 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 00:01:26,039 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6654a978247a26f59a22fbd291a863dd37efbaeb657752df8958c9b0d5665029 [2023-11-29 00:01:26,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:01:26,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:01:26,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:01:26,357 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:01:26,357 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:01:26,359 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_61_bad.i [2023-11-29 00:01:29,173 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:01:29,498 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:01:29,499 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_61_bad.i [2023-11-29 00:01:29,519 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/data/058209d87/e3f46676a099411aa6ae4fdf390add5a/FLAG145c8dc29 [2023-11-29 00:01:29,531 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/data/058209d87/e3f46676a099411aa6ae4fdf390add5a [2023-11-29 00:01:29,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:01:29,535 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:01:29,536 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:01:29,536 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:01:29,540 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:01:29,541 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:01:29" (1/1) ... [2023-11-29 00:01:29,542 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@580dc8fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:29, skipping insertion in model container [2023-11-29 00:01:29,542 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:01:29" (1/1) ... [2023-11-29 00:01:29,591 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:01:30,282 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:01:30,297 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:01:30,375 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:01:30,515 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:01:30,515 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:01:30,515 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:01:30,516 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:01:30,523 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:01:30,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:30 WrapperNode [2023-11-29 00:01:30,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:01:30,526 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:01:30,526 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:01:30,526 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:01:30,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:30" (1/1) ... [2023-11-29 00:01:30,561 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:30" (1/1) ... [2023-11-29 00:01:30,586 INFO L138 Inliner]: procedures = 504, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 55 [2023-11-29 00:01:30,586 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:01:30,587 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:01:30,587 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:01:30,587 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:01:30,597 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:30" (1/1) ... [2023-11-29 00:01:30,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:30" (1/1) ... [2023-11-29 00:01:30,602 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:30" (1/1) ... [2023-11-29 00:01:30,617 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [1, 3]. 75 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 2 writes are split as follows [0, 2]. [2023-11-29 00:01:30,618 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:30" (1/1) ... [2023-11-29 00:01:30,618 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:30" (1/1) ... [2023-11-29 00:01:30,628 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:30" (1/1) ... [2023-11-29 00:01:30,630 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:30" (1/1) ... [2023-11-29 00:01:30,633 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:30" (1/1) ... [2023-11-29 00:01:30,635 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:30" (1/1) ... [2023-11-29 00:01:30,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:01:30,641 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:01:30,641 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:01:30,641 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:01:30,642 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:30" (1/1) ... [2023-11-29 00:01:30,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:01:30,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:01:30,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:01:30,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:01:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 00:01:30,697 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 00:01:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:01:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 00:01:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 00:01:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:01:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:01:30,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:01:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 00:01:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 00:01:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:01:30,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 00:01:30,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 00:01:30,698 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 00:01:30,854 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:01:30,856 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:01:31,007 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:01:31,045 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:01:31,045 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 00:01:31,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:01:31 BoogieIcfgContainer [2023-11-29 00:01:31,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:01:31,048 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:01:31,048 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:01:31,051 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:01:31,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:01:29" (1/3) ... [2023-11-29 00:01:31,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55fb5a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:01:31, skipping insertion in model container [2023-11-29 00:01:31,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:01:30" (2/3) ... [2023-11-29 00:01:31,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55fb5a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:01:31, skipping insertion in model container [2023-11-29 00:01:31,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:01:31" (3/3) ... [2023-11-29 00:01:31,054 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_61_bad.i [2023-11-29 00:01:31,068 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:01:31,068 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 00:01:31,106 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:01:31,111 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=PETRI_NET, 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;@3d6947c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:01:31,111 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 00:01:31,115 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) [2023-11-29 00:01:31,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 00:01:31,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:01:31,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:01:31,123 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 00:01:31,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:01:31,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1506176035, now seen corresponding path program 1 times [2023-11-29 00:01:31,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:01:31,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496060716] [2023-11-29 00:01:31,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:01:31,140 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 [2023-11-29 00:01:31,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:01:31,142 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:01:31,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:01:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:01:31,272 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:01:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:01:31,332 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-29 00:01:31,334 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 00:01:31,335 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 00:01:31,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 00:01:31,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:01:31,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:01:31,542 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 00:01:31,546 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 00:01:31,560 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet98 [2023-11-29 00:01:31,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 12:01:31 BoogieIcfgContainer [2023-11-29 00:01:31,568 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 00:01:31,569 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:01:31,569 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:01:31,569 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:01:31,570 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:01:31" (3/4) ... [2023-11-29 00:01:31,572 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 00:01:31,573 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:01:31,574 INFO L158 Benchmark]: Toolchain (without parser) took 2038.86ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 44.1MB in the beginning and 34.1MB in the end (delta: 9.9MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2023-11-29 00:01:31,575 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 71.3MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:01:31,575 INFO L158 Benchmark]: CACSL2BoogieTranslator took 988.39ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 43.9MB in the beginning and 51.4MB in the end (delta: -7.5MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2023-11-29 00:01:31,576 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.65ms. Allocated memory is still 86.0MB. Free memory was 51.4MB in the beginning and 48.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 00:01:31,576 INFO L158 Benchmark]: Boogie Preprocessor took 53.23ms. Allocated memory is still 86.0MB. Free memory was 48.1MB in the beginning and 45.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:01:31,577 INFO L158 Benchmark]: RCFGBuilder took 405.30ms. Allocated memory is still 86.0MB. Free memory was 45.1MB in the beginning and 52.6MB in the end (delta: -7.4MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2023-11-29 00:01:31,578 INFO L158 Benchmark]: TraceAbstraction took 520.53ms. Allocated memory is still 86.0MB. Free memory was 51.8MB in the beginning and 34.6MB in the end (delta: 17.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 00:01:31,578 INFO L158 Benchmark]: Witness Printer took 3.86ms. Allocated memory is still 86.0MB. Free memory was 34.6MB in the beginning and 34.1MB in the end (delta: 443.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:01:31,581 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 71.3MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 988.39ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 43.9MB in the beginning and 51.4MB in the end (delta: -7.5MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.65ms. Allocated memory is still 86.0MB. Free memory was 51.4MB in the beginning and 48.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.23ms. Allocated memory is still 86.0MB. Free memory was 48.1MB in the beginning and 45.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 405.30ms. Allocated memory is still 86.0MB. Free memory was 45.1MB in the beginning and 52.6MB in the end (delta: -7.4MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * TraceAbstraction took 520.53ms. Allocated memory is still 86.0MB. Free memory was 51.8MB in the beginning and 34.6MB in the end (delta: 17.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 3.86ms. Allocated memory is still 86.0MB. Free memory was 34.6MB in the beginning and 34.1MB in the end (delta: 443.6kB). 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~nondet98 - 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 1562. 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); [L1562] CALL printLine("Calling bad()...") VAL [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) [L1562] RET printLine("Calling bad()...") VAL [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] [L1563] CALL CWE191_Integer_Underflow__int_fscanf_sub_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_fscanf_sub_61b_badSource(data) [L1570] EXPR \read(data) [L1570] return data; [L1570] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_fscanf_sub_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_fscanf_sub_61b_badSource(data) [L1555] data - 1 VAL [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: 0.4s, 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=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, 0.0s 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 [2023-11-29 00:01:31,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858366ad-87c8-4917-86a2-1df4e4de726a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample