./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_68_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_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme --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 15abb7e7433d900f49f8ae188632a5f511b789dc7b16b9f8b66a95331c5a24bd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:51:34,075 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:51:34,176 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-26 11:51:34,183 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:51:34,183 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:51:34,208 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:51:34,209 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:51:34,210 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:51:34,210 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:51:34,211 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:51:34,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:51:34,212 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:51:34,213 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:51:34,213 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:51:34,214 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:51:34,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:51:34,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:51:34,216 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:51:34,216 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:51:34,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:51:34,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:51:34,218 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:51:34,218 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:51:34,219 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:51:34,219 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:51:34,220 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:51:34,220 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:51:34,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:51:34,221 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:51:34,222 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:51:34,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:34,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:51:34,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:51:34,224 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:51:34,225 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:51:34,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:51:34,225 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:51:34,225 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:51:34,226 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:51:34,226 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:51:34,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:51:34,227 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_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15abb7e7433d900f49f8ae188632a5f511b789dc7b16b9f8b66a95331c5a24bd [2023-11-26 11:51:34,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:51:34,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:51:34,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:51:34,537 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:51:34,537 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:51:34,538 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_68_bad.i [2023-11-26 11:51:37,822 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:51:38,250 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:51:38,252 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_68_bad.i [2023-11-26 11:51:38,287 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/data/e86bc5f65/589afc832b9440c590d2e7d6b96e64c8/FLAG51deba8db [2023-11-26 11:51:38,310 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/data/e86bc5f65/589afc832b9440c590d2e7d6b96e64c8 [2023-11-26 11:51:38,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:51:38,315 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:51:38,317 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:38,317 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:51:38,323 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:51:38,324 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:38" (1/1) ... [2023-11-26 11:51:38,325 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab19b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:38, skipping insertion in model container [2023-11-26 11:51:38,325 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:38" (1/1) ... [2023-11-26 11:51:38,423 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:51:39,760 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:39,771 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:51:39,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:40,061 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:40,061 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:40,061 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:40,062 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:40,070 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:51:40,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:40 WrapperNode [2023-11-26 11:51:40,071 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:40,072 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:40,073 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:51:40,073 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:51:40,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:40" (1/1) ... [2023-11-26 11:51:40,125 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:40" (1/1) ... [2023-11-26 11:51:40,168 INFO L138 Inliner]: procedures = 499, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54 [2023-11-26 11:51:40,169 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:40,170 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:51:40,170 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:51:40,170 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:51:40,183 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:40" (1/1) ... [2023-11-26 11:51:40,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:40" (1/1) ... [2023-11-26 11:51:40,202 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:40" (1/1) ... [2023-11-26 11:51:40,228 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]. [2023-11-26 11:51:40,229 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:40" (1/1) ... [2023-11-26 11:51:40,229 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:40" (1/1) ... [2023-11-26 11:51:40,240 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:40" (1/1) ... [2023-11-26 11:51:40,249 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:40" (1/1) ... [2023-11-26 11:51:40,251 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:40" (1/1) ... [2023-11-26 11:51:40,257 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:40" (1/1) ... [2023-11-26 11:51:40,260 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:51:40,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:51:40,265 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:51:40,265 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:51:40,266 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:40" (1/1) ... [2023-11-26 11:51:40,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:40,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:40,303 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:40,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:51:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-26 11:51:40,341 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-26 11:51:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:51:40,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:51:40,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:51:40,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:51:40,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:51:40,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:51:40,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:51:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-26 11:51:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:51:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:51:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:51:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:51:40,508 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:51:40,510 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:51:40,631 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:51:40,693 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:51:40,693 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:51:40,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:40 BoogieIcfgContainer [2023-11-26 11:51:40,694 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:51:40,696 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:51:40,696 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:51:40,700 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:51:40,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:51:38" (1/3) ... [2023-11-26 11:51:40,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c8bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:40, skipping insertion in model container [2023-11-26 11:51:40,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:40" (2/3) ... [2023-11-26 11:51:40,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c8bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:40, skipping insertion in model container [2023-11-26 11:51:40,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:40" (3/3) ... [2023-11-26 11:51:40,706 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_postdec_68_bad.i [2023-11-26 11:51:40,727 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:51:40,728 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 11:51:40,770 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:51:40,777 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;@3767f119, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:51:40,777 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 11:51:40,781 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) [2023-11-26 11:51:40,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-26 11:51:40,789 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:40,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:40,790 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 11:51:40,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:40,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1506175351, now seen corresponding path program 1 times [2023-11-26 11:51:40,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:40,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900635414] [2023-11-26 11:51:40,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:40,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:40,950 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:41,052 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:41,053 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:51:41,054 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-26 11:51:41,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-26 11:51:41,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:51:41,061 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-26 11:51:41,066 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:51:41,087 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-11-26 11:51:41,089 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post104 could not be translated [2023-11-26 11:51:41,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:51:41 BoogieIcfgContainer [2023-11-26 11:51:41,098 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:51:41,098 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:51:41,098 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:51:41,099 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:51:41,099 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:40" (3/4) ... [2023-11-26 11:51:41,101 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:51:41,102 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:51:41,104 INFO L158 Benchmark]: Toolchain (without parser) took 2788.27ms. Allocated memory is still 159.4MB. Free memory was 116.3MB in the beginning and 72.1MB in the end (delta: 44.2MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2023-11-26 11:51:41,104 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 68.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:51:41,105 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1754.85ms. Allocated memory is still 159.4MB. Free memory was 115.7MB in the beginning and 109.1MB in the end (delta: 6.6MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. [2023-11-26 11:51:41,105 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.77ms. Allocated memory is still 159.4MB. Free memory was 109.1MB in the beginning and 105.6MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:51:41,106 INFO L158 Benchmark]: Boogie Preprocessor took 93.23ms. Allocated memory is still 159.4MB. Free memory was 105.6MB in the beginning and 103.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:51:41,107 INFO L158 Benchmark]: RCFGBuilder took 430.35ms. Allocated memory is still 159.4MB. Free memory was 103.6MB in the beginning and 89.8MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 11:51:41,107 INFO L158 Benchmark]: TraceAbstraction took 401.47ms. Allocated memory is still 159.4MB. Free memory was 88.9MB in the beginning and 72.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 11:51:41,108 INFO L158 Benchmark]: Witness Printer took 4.15ms. Allocated memory is still 159.4MB. Free memory was 72.1MB in the beginning and 72.1MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:51:41,112 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 68.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1754.85ms. Allocated memory is still 159.4MB. Free memory was 115.7MB in the beginning and 109.1MB in the end (delta: 6.6MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.77ms. Allocated memory is still 159.4MB. Free memory was 109.1MB in the beginning and 105.6MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 93.23ms. Allocated memory is still 159.4MB. Free memory was 105.6MB in the beginning and 103.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 430.35ms. Allocated memory is still 159.4MB. Free memory was 103.6MB in the beginning and 89.8MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 401.47ms. Allocated memory is still 159.4MB. Free memory was 88.9MB in the beginning and 72.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.15ms. Allocated memory is still 159.4MB. Free memory was 72.1MB in the beginning and 72.1MB in the end (delta: 2.6kB). 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~nondet102 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post104 could not be translated - 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: 1575]: 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 1563. 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); [L1550] int CWE191_Integer_Underflow__int_fscanf_postdec_68_goodB2GData; [L1563] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fscanf_postdec_68_goodB2GData=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) [L1563] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fscanf_postdec_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741827, argc=1073741827, argv={1073741830:1073741829}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL CWE191_Integer_Underflow__int_fscanf_postdec_68_bad() [L1554] int data; [L1555] data = 0 [L1557] EXPR \read(data) [L1557] CWE191_Integer_Underflow__int_fscanf_postdec_68_badData = data [L1558] CALL CWE191_Integer_Underflow__int_fscanf_postdec_68b_badSink() [L1573] int data = CWE191_Integer_Underflow__int_fscanf_postdec_68_badData; [L1575] data-- VAL [CWE191_Integer_Underflow__int_fscanf_postdec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fscanf_postdec_68_goodB2GData=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: 1575]: 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 [2023-11-26 11:51:41,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme --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 15abb7e7433d900f49f8ae188632a5f511b789dc7b16b9f8b66a95331c5a24bd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:51:43,786 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:51:43,879 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-26 11:51:43,886 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:51:43,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:51:43,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-26 11:51:43,919 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:51:43,922 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:51:43,923 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:51:43,924 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:51:43,924 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:51:43,925 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:51:43,926 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:51:43,929 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:51:43,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:51:43,930 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:51:43,932 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:51:43,936 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:51:43,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:51:43,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:51:43,938 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:51:43,939 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:51:43,939 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:51:43,940 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 11:51:43,940 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:51:43,941 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 11:51:43,941 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:51:43,942 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:51:43,942 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:51:43,943 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:51:43,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:51:43,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:51:43,945 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:51:43,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:43,946 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:51:43,946 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:51:43,947 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:51:43,948 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 11:51:43,948 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 11:51:43,949 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:51:43,949 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:51:43,949 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:51:43,950 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:51:43,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:51:43,950 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 11:51:43,951 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_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15abb7e7433d900f49f8ae188632a5f511b789dc7b16b9f8b66a95331c5a24bd [2023-11-26 11:51:44,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:51:44,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:51:44,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:51:44,466 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:51:44,467 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:51:44,470 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_68_bad.i [2023-11-26 11:51:47,704 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:51:48,171 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:51:48,172 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_68_bad.i [2023-11-26 11:51:48,204 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/data/e1346240a/0fdcae58bb294c5d89a12ded97e7ba75/FLAG1ccacc7e9 [2023-11-26 11:51:48,219 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/data/e1346240a/0fdcae58bb294c5d89a12ded97e7ba75 [2023-11-26 11:51:48,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:51:48,223 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:51:48,225 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:48,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:51:48,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:51:48,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:48" (1/1) ... [2023-11-26 11:51:48,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cfa7dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:48, skipping insertion in model container [2023-11-26 11:51:48,232 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:48" (1/1) ... [2023-11-26 11:51:48,289 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:51:49,383 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:49,413 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:51:49,579 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:49,823 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:49,823 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:49,823 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:49,823 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:49,833 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:51:49,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:49 WrapperNode [2023-11-26 11:51:49,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:49,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:49,836 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:51:49,836 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:51:49,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:49" (1/1) ... [2023-11-26 11:51:49,907 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:49" (1/1) ... [2023-11-26 11:51:49,956 INFO L138 Inliner]: procedures = 504, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54 [2023-11-26 11:51:49,957 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:49,958 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:51:49,958 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:51:49,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:51:49,973 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:49" (1/1) ... [2023-11-26 11:51:49,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:49" (1/1) ... [2023-11-26 11:51:49,993 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:49" (1/1) ... [2023-11-26 11:51:50,025 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]. [2023-11-26 11:51:50,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:49" (1/1) ... [2023-11-26 11:51:50,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:49" (1/1) ... [2023-11-26 11:51:50,036 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:49" (1/1) ... [2023-11-26 11:51:50,048 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:49" (1/1) ... [2023-11-26 11:51:50,058 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:49" (1/1) ... [2023-11-26 11:51:50,073 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:49" (1/1) ... [2023-11-26 11:51:50,078 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:51:50,079 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:51:50,079 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:51:50,085 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:51:50,086 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:49" (1/1) ... [2023-11-26 11:51:50,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:50,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:50,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:50,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:51:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-26 11:51:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-26 11:51:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:51:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 11:51:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 11:51:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:51:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:51:50,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:51:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-26 11:51:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-26 11:51:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:51:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-26 11:51:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-26 11:51:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-26 11:51:50,411 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:51:50,413 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:51:50,588 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:51:50,635 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:51:50,636 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:51:50,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:50 BoogieIcfgContainer [2023-11-26 11:51:50,636 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:51:50,639 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:51:50,639 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:51:50,644 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:51:50,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:51:48" (1/3) ... [2023-11-26 11:51:50,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0aefbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:50, skipping insertion in model container [2023-11-26 11:51:50,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:49" (2/3) ... [2023-11-26 11:51:50,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0aefbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:50, skipping insertion in model container [2023-11-26 11:51:50,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:50" (3/3) ... [2023-11-26 11:51:50,648 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_postdec_68_bad.i [2023-11-26 11:51:50,670 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:51:50,671 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 11:51:50,727 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:51:50,734 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;@56e7c159, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:51:50,734 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 11:51:50,738 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) [2023-11-26 11:51:50,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-26 11:51:50,746 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:50,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:50,748 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 11:51:50,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:50,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1506175351, now seen corresponding path program 1 times [2023-11-26 11:51:50,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:51:50,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [724974928] [2023-11-26 11:51:50,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:50,771 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 [2023-11-26 11:51:50,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:51:50,775 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 11:51:50,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:51:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:51,030 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:51,142 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-26 11:51:51,144 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:51:51,146 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-26 11:51:51,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-26 11:51:51,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:51:51,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:51:51,360 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-26 11:51:51,376 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:51:51,396 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-11-26 11:51:51,400 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post102 could not be translated [2023-11-26 11:51:51,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:51:51 BoogieIcfgContainer [2023-11-26 11:51:51,410 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:51:51,411 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:51:51,411 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:51:51,412 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:51:51,412 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:50" (3/4) ... [2023-11-26 11:51:51,415 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:51:51,417 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:51:51,419 INFO L158 Benchmark]: Toolchain (without parser) took 3195.05ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 49.6MB in the beginning and 66.2MB in the end (delta: -16.6MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2023-11-26 11:51:51,419 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 77.6MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:51:51,420 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1609.85ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 49.4MB in the beginning and 47.9MB in the end (delta: 1.4MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2023-11-26 11:51:51,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 122.02ms. Allocated memory is still 96.5MB. Free memory was 47.9MB in the beginning and 45.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:51:51,422 INFO L158 Benchmark]: Boogie Preprocessor took 119.92ms. Allocated memory is still 96.5MB. Free memory was 44.6MB in the beginning and 42.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:51:51,423 INFO L158 Benchmark]: RCFGBuilder took 557.78ms. Allocated memory is still 96.5MB. Free memory was 42.1MB in the beginning and 54.2MB in the end (delta: -12.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2023-11-26 11:51:51,424 INFO L158 Benchmark]: TraceAbstraction took 771.36ms. Allocated memory is still 96.5MB. Free memory was 53.7MB in the beginning and 66.6MB in the end (delta: -12.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 11:51:51,425 INFO L158 Benchmark]: Witness Printer took 5.96ms. Allocated memory is still 96.5MB. Free memory was 66.6MB in the beginning and 66.2MB in the end (delta: 368.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:51:51,429 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 77.6MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1609.85ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 49.4MB in the beginning and 47.9MB in the end (delta: 1.4MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 122.02ms. Allocated memory is still 96.5MB. Free memory was 47.9MB in the beginning and 45.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 119.92ms. Allocated memory is still 96.5MB. Free memory was 44.6MB in the beginning and 42.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 557.78ms. Allocated memory is still 96.5MB. Free memory was 42.1MB in the beginning and 54.2MB in the end (delta: -12.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * TraceAbstraction took 771.36ms. Allocated memory is still 96.5MB. Free memory was 53.7MB in the beginning and 66.6MB in the end (delta: -12.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 5.96ms. Allocated memory is still 96.5MB. Free memory was 66.6MB in the beginning and 66.2MB in the end (delta: 368.1kB). 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 Unfinished Backtranslation: IdentifierExpression #t~post102 could not be translated - 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: 1575]: 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 1563. 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] int CWE191_Integer_Underflow__int_fscanf_postdec_68_badData; [L1549] int CWE191_Integer_Underflow__int_fscanf_postdec_68_goodG2BData; [L1563] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fscanf_postdec_68_badData=0, CWE191_Integer_Underflow__int_fscanf_postdec_68_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) [L1563] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fscanf_postdec_68_badData=0, CWE191_Integer_Underflow__int_fscanf_postdec_68_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] [L1564] CALL CWE191_Integer_Underflow__int_fscanf_postdec_68_bad() [L1554] int data; [L1555] data = 0 [L1557] EXPR \read(data) [L1557] CWE191_Integer_Underflow__int_fscanf_postdec_68_badData = data [L1558] CALL CWE191_Integer_Underflow__int_fscanf_postdec_68b_badSink() [L1573] int data = CWE191_Integer_Underflow__int_fscanf_postdec_68_badData; [L1575] data-- VAL [CWE191_Integer_Underflow__int_fscanf_postdec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fscanf_postdec_68_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: 1575]: 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: 0.7s, 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 [2023-11-26 11:51:51,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f6dae-7729-4ba7-bbf4-5b168ba42da9/bin/uautomizer-verify-VRDe98Ueme/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample