./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_67_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_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/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_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_67_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/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_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/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 44a56d6a88741e6a1d774d3aaeec0d446c56e2c5b857f14db04fbcae14fada63 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:57:29,827 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:57:29,888 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 06:57:29,893 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:57:29,893 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:57:29,918 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:57:29,918 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:57:29,919 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:57:29,920 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:57:29,920 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:57:29,921 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:57:29,921 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:57:29,922 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:57:29,922 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:57:29,923 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:57:29,923 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:57:29,924 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:57:29,924 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:57:29,925 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:57:29,925 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:57:29,926 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:57:29,928 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:57:29,929 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 06:57:29,929 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:57:29,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:57:29,930 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:57:29,931 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:57:29,931 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:57:29,931 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:57:29,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:57:29,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:57:29,932 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:57:29,933 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:57:29,933 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:57:29,933 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:57:29,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:57:29,933 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:57:29,934 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:57:29,934 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:57:29,934 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:57:29,934 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:57:29,935 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_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44a56d6a88741e6a1d774d3aaeec0d446c56e2c5b857f14db04fbcae14fada63 [2023-11-29 06:57:30,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:57:30,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:57:30,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:57:30,177 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:57:30,177 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:57:30,178 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_67_bad.i [2023-11-29 06:57:32,912 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:57:33,228 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:57:33,229 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_67_bad.i [2023-11-29 06:57:33,250 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/data/01aabc780/fe126c8fbe9746d9a13b893ad7a10b6b/FLAGc45de6078 [2023-11-29 06:57:33,262 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/data/01aabc780/fe126c8fbe9746d9a13b893ad7a10b6b [2023-11-29 06:57:33,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:57:33,265 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:57:33,267 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:57:33,267 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:57:33,272 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:57:33,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:57:33" (1/1) ... [2023-11-29 06:57:33,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59566938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:33, skipping insertion in model container [2023-11-29 06:57:33,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:57:33" (1/1) ... [2023-11-29 06:57:33,329 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:57:34,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:57:34,023 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:57:34,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:57:34,223 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:57:34,223 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:57:34,223 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:57:34,223 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:57:34,228 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:57:34,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:34 WrapperNode [2023-11-29 06:57:34,229 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:57:34,230 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:57:34,230 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:57:34,230 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:57:34,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:34" (1/1) ... [2023-11-29 06:57:34,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:34" (1/1) ... [2023-11-29 06:57:34,286 INFO L138 Inliner]: procedures = 499, calls = 64, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 106 [2023-11-29 06:57:34,286 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:57:34,287 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:57:34,287 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:57:34,287 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:57:34,296 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:34" (1/1) ... [2023-11-29 06:57:34,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:34" (1/1) ... [2023-11-29 06:57:34,300 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:34" (1/1) ... [2023-11-29 06:57:34,315 INFO L175 MemorySlicer]: Split 5 memory accesses to 3 slices as follows [1, 2, 2]. 40 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2023-11-29 06:57:34,315 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:34" (1/1) ... [2023-11-29 06:57:34,315 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:34" (1/1) ... [2023-11-29 06:57:34,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:34" (1/1) ... [2023-11-29 06:57:34,325 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:34" (1/1) ... [2023-11-29 06:57:34,328 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:34" (1/1) ... [2023-11-29 06:57:34,329 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:34" (1/1) ... [2023-11-29 06:57:34,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:57:34,334 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:57:34,334 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:57:34,334 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:57:34,335 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:34" (1/1) ... [2023-11-29 06:57:34,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:57:34,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:57:34,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:57:34,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:57:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 06:57:34,388 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 06:57:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:57:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 06:57:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 06:57:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 06:57:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:57:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:57:34,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:57:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:57:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 06:57:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 06:57:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 06:57:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 06:57:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:57:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 06:57:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 06:57:34,541 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:57:34,543 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:57:34,717 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:57:34,749 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:57:34,749 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 06:57:34,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:57:34 BoogieIcfgContainer [2023-11-29 06:57:34,750 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:57:34,753 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:57:34,753 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:57:34,756 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:57:34,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:57:33" (1/3) ... [2023-11-29 06:57:34,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1821367a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:57:34, skipping insertion in model container [2023-11-29 06:57:34,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:34" (2/3) ... [2023-11-29 06:57:34,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1821367a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:57:34, skipping insertion in model container [2023-11-29 06:57:34,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:57:34" (3/3) ... [2023-11-29 06:57:34,758 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_67_bad.i [2023-11-29 06:57:34,772 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:57:34,773 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 06:57:34,810 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:57:34,817 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;@72dca2c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:57:34,817 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 06:57:34,820 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 28 states have internal predecessors, (42), 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 06:57:34,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 06:57:34,826 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:34,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:57:34,827 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 06:57:34,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:34,832 INFO L85 PathProgramCache]: Analyzing trace with hash 185780292, now seen corresponding path program 1 times [2023-11-29 06:57:34,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:57:34,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700530076] [2023-11-29 06:57:34,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:34,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:57:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:57:34,986 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:57:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:57:35,049 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:57:35,051 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 06:57:35,052 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 06:57:35,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 06:57:35,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:57:35,058 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 06:57:35,062 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:57:35,079 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet112 [2023-11-29 06:57:35,081 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet98 could not be translated [2023-11-29 06:57:35,082 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet106 could not be translated [2023-11-29 06:57:35,082 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet105 could not be translated [2023-11-29 06:57:35,082 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet104 could not be translated [2023-11-29 06:57:35,082 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet107 could not be translated [2023-11-29 06:57:35,082 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet105 could not be translated [2023-11-29 06:57:35,082 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet98 could not be translated [2023-11-29 06:57:35,083 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet108 could not be translated [2023-11-29 06:57:35,083 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet104 could not be translated [2023-11-29 06:57:35,083 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet106 could not be translated [2023-11-29 06:57:35,083 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet105 could not be translated [2023-11-29 06:57:35,083 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet98 could not be translated [2023-11-29 06:57:35,083 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet108 could not be translated [2023-11-29 06:57:35,083 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet104 could not be translated [2023-11-29 06:57:35,084 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite109 could not be translated [2023-11-29 06:57:35,084 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet106 could not be translated [2023-11-29 06:57:35,084 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet107 could not be translated [2023-11-29 06:57:35,084 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~myStruct!structFirst [2023-11-29 06:57:35,084 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~myStruct!structFirst has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-29 06:57:35,085 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post115 could not be translated [2023-11-29 06:57:35,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:57:35 BoogieIcfgContainer [2023-11-29 06:57:35,092 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:57:35,093 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:57:35,093 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:57:35,094 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:57:35,094 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:57:34" (3/4) ... [2023-11-29 06:57:35,096 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 06:57:35,097 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:57:35,098 INFO L158 Benchmark]: Toolchain (without parser) took 1832.81ms. Allocated memory is still 201.3MB. Free memory was 166.9MB in the beginning and 110.5MB in the end (delta: 56.4MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2023-11-29 06:57:35,099 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 62.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:57:35,099 INFO L158 Benchmark]: CACSL2BoogieTranslator took 962.51ms. Allocated memory is still 201.3MB. Free memory was 166.9MB in the beginning and 156.7MB in the end (delta: 10.2MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. [2023-11-29 06:57:35,100 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.82ms. Allocated memory is still 201.3MB. Free memory was 156.7MB in the beginning and 154.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:57:35,100 INFO L158 Benchmark]: Boogie Preprocessor took 45.97ms. Allocated memory is still 201.3MB. Free memory was 153.4MB in the beginning and 151.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:57:35,101 INFO L158 Benchmark]: RCFGBuilder took 416.33ms. Allocated memory is still 201.3MB. Free memory was 151.3MB in the beginning and 132.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 06:57:35,102 INFO L158 Benchmark]: TraceAbstraction took 339.82ms. Allocated memory is still 201.3MB. Free memory was 131.5MB in the beginning and 110.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 06:57:35,102 INFO L158 Benchmark]: Witness Printer took 4.10ms. Allocated memory is still 201.3MB. Free memory is still 110.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:57:35,105 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 62.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 962.51ms. Allocated memory is still 201.3MB. Free memory was 166.9MB in the beginning and 156.7MB in the end (delta: 10.2MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.82ms. Allocated memory is still 201.3MB. Free memory was 156.7MB in the beginning and 154.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.97ms. Allocated memory is still 201.3MB. Free memory was 153.4MB in the beginning and 151.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 416.33ms. Allocated memory is still 201.3MB. Free memory was 151.3MB in the beginning and 132.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 339.82ms. Allocated memory is still 201.3MB. Free memory was 131.5MB in the beginning and 110.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 4.10ms. Allocated memory is still 201.3MB. Free memory is still 110.5MB. 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~nondet112 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet98 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet106 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet105 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet104 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet107 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet105 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet98 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet108 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet104 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet106 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet105 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet98 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet108 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet104 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite109 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet106 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet107 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~myStruct!structFirst - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~myStruct!structFirst has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post115 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: 1573]: 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 1565. 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); [L1565] 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) [L1565] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=2147483649, argc=2147483649, argv={2147483651:2147483650}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL CWE191_Integer_Underflow__int_rand_postdec_67_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_rand_postdec_67_structType myStruct; [L1557] data = 0 [L1558] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1558] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myStruct={6:0}] [L1558] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myStruct={6:0}] [L1558] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myStruct={6:0}] [L1558] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1559] myStruct.structFirst = data [L1560] CALL CWE191_Integer_Underflow__int_rand_postdec_67b_badSink(myStruct) [L1571] EXPR myStruct.structFirst [L1571] int data = myStruct.structFirst; [L1573] data-- 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, myStruct={5:0}] - UnprovableResult [Line: 1573]: 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, 32 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=32occurred 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, 14 NumberOfCodeBlocks, 14 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 06:57:35,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/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_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/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_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_67_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/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_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/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 44a56d6a88741e6a1d774d3aaeec0d446c56e2c5b857f14db04fbcae14fada63 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:57:37,022 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:57:37,090 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-29 06:57:37,103 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:57:37,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:57:37,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-29 06:57:37,132 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:57:37,133 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:57:37,134 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:57:37,135 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:57:37,135 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:57:37,136 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:57:37,136 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:57:37,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:57:37,138 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:57:37,138 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:57:37,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:57:37,140 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:57:37,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:57:37,141 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:57:37,141 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:57:37,142 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:57:37,142 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 06:57:37,143 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 06:57:37,143 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 06:57:37,143 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 06:57:37,144 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:57:37,144 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:57:37,144 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:57:37,145 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:57:37,145 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:57:37,146 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:57:37,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:57:37,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:57:37,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:57:37,147 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:57:37,147 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:57:37,148 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 06:57:37,148 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 06:57:37,148 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:57:37,148 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:57:37,149 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:57:37,149 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:57:37,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:57:37,149 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 06:57:37,149 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_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44a56d6a88741e6a1d774d3aaeec0d446c56e2c5b857f14db04fbcae14fada63 [2023-11-29 06:57:37,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:57:37,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:57:37,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:57:37,462 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:57:37,462 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:57:37,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_67_bad.i [2023-11-29 06:57:40,246 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:57:40,542 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:57:40,542 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_67_bad.i [2023-11-29 06:57:40,567 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/data/96e3f2a60/0b9ff5c3241749a5bd6075352a7246dd/FLAG450859092 [2023-11-29 06:57:40,582 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/data/96e3f2a60/0b9ff5c3241749a5bd6075352a7246dd [2023-11-29 06:57:40,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:57:40,586 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:57:40,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:57:40,587 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:57:40,592 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:57:40,593 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:57:40" (1/1) ... [2023-11-29 06:57:40,594 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ae2d4d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:40, skipping insertion in model container [2023-11-29 06:57:40,594 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:57:40" (1/1) ... [2023-11-29 06:57:40,649 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:57:41,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:57:41,409 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:57:41,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:57:41,611 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:57:41,612 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:57:41,612 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:57:41,612 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:57:41,617 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:57:41,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:41 WrapperNode [2023-11-29 06:57:41,618 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:57:41,619 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:57:41,620 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:57:41,620 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:57:41,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:41" (1/1) ... [2023-11-29 06:57:41,651 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:41" (1/1) ... [2023-11-29 06:57:41,674 INFO L138 Inliner]: procedures = 504, calls = 64, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2023-11-29 06:57:41,675 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:57:41,676 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:57:41,676 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:57:41,676 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:57:41,685 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:41" (1/1) ... [2023-11-29 06:57:41,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:41" (1/1) ... [2023-11-29 06:57:41,689 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:41" (1/1) ... [2023-11-29 06:57:41,705 INFO L175 MemorySlicer]: Split 5 memory accesses to 3 slices as follows [1, 2, 2]. 40 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2023-11-29 06:57:41,705 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:41" (1/1) ... [2023-11-29 06:57:41,705 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:41" (1/1) ... [2023-11-29 06:57:41,716 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:41" (1/1) ... [2023-11-29 06:57:41,718 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:41" (1/1) ... [2023-11-29 06:57:41,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:41" (1/1) ... [2023-11-29 06:57:41,724 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:41" (1/1) ... [2023-11-29 06:57:41,729 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:57:41,730 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:57:41,730 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:57:41,730 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:57:41,731 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:41" (1/1) ... [2023-11-29 06:57:41,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:57:41,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:57:41,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:57:41,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:57:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 06:57:41,788 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 06:57:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:57:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 06:57:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 06:57:41,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 06:57:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:57:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:57:41,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:57:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 06:57:41,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 06:57:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 06:57:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:57:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 06:57:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 06:57:41,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 06:57:41,791 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 06:57:41,964 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:57:41,966 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:57:42,130 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:57:42,166 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:57:42,167 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 06:57:42,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:57:42 BoogieIcfgContainer [2023-11-29 06:57:42,167 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:57:42,170 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:57:42,170 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:57:42,173 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:57:42,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:57:40" (1/3) ... [2023-11-29 06:57:42,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ac47aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:57:42, skipping insertion in model container [2023-11-29 06:57:42,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:57:41" (2/3) ... [2023-11-29 06:57:42,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ac47aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:57:42, skipping insertion in model container [2023-11-29 06:57:42,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:57:42" (3/3) ... [2023-11-29 06:57:42,176 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_67_bad.i [2023-11-29 06:57:42,195 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:57:42,195 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 06:57:42,240 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:57:42,247 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;@4b145841, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:57:42,248 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 06:57:42,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 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 06:57:42,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 06:57:42,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:42,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:57:42,273 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 06:57:42,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:42,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1695411744, now seen corresponding path program 1 times [2023-11-29 06:57:42,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:57:42,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583577923] [2023-11-29 06:57:42,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:42,292 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 06:57:42,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:57:42,295 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/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 06:57:42,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/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 06:57:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:57:42,461 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:57:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:57:42,548 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-29 06:57:42,550 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 06:57:42,551 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 06:57:42,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 06:57:42,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/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 06:57:42,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/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 06:57:42,760 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 06:57:42,764 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:57:42,780 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet106 [2023-11-29 06:57:42,784 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet96 could not be translated [2023-11-29 06:57:42,785 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated [2023-11-29 06:57:42,785 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated [2023-11-29 06:57:42,785 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated [2023-11-29 06:57:42,786 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet100 could not be translated [2023-11-29 06:57:42,786 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~myStruct!structFirst [2023-11-29 06:57:42,787 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~myStruct!structFirst has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-29 06:57:42,787 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post109 could not be translated [2023-11-29 06:57:42,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:57:42 BoogieIcfgContainer [2023-11-29 06:57:42,794 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:57:42,795 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:57:42,795 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:57:42,795 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:57:42,796 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:57:42" (3/4) ... [2023-11-29 06:57:42,798 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 06:57:42,799 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:57:42,800 INFO L158 Benchmark]: Toolchain (without parser) took 2214.37ms. Allocated memory was 75.5MB in the beginning and 107.0MB in the end (delta: 31.5MB). Free memory was 51.9MB in the beginning and 64.0MB in the end (delta: -12.1MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2023-11-29 06:57:42,801 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 75.5MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:57:42,802 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1031.19ms. Allocated memory was 75.5MB in the beginning and 107.0MB in the end (delta: 31.5MB). Free memory was 51.9MB in the beginning and 73.3MB in the end (delta: -21.4MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2023-11-29 06:57:42,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.32ms. Allocated memory is still 107.0MB. Free memory was 73.3MB in the beginning and 70.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 06:57:42,803 INFO L158 Benchmark]: Boogie Preprocessor took 53.69ms. Allocated memory is still 107.0MB. Free memory was 69.7MB in the beginning and 67.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:57:42,804 INFO L158 Benchmark]: RCFGBuilder took 437.27ms. Allocated memory is still 107.0MB. Free memory was 67.0MB in the beginning and 49.3MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 06:57:42,804 INFO L158 Benchmark]: TraceAbstraction took 624.78ms. Allocated memory is still 107.0MB. Free memory was 48.7MB in the beginning and 64.7MB in the end (delta: -16.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:57:42,805 INFO L158 Benchmark]: Witness Printer took 4.23ms. Allocated memory is still 107.0MB. Free memory was 64.7MB in the beginning and 64.0MB in the end (delta: 681.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:57:42,808 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 75.5MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1031.19ms. Allocated memory was 75.5MB in the beginning and 107.0MB in the end (delta: 31.5MB). Free memory was 51.9MB in the beginning and 73.3MB in the end (delta: -21.4MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.32ms. Allocated memory is still 107.0MB. Free memory was 73.3MB in the beginning and 70.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.69ms. Allocated memory is still 107.0MB. Free memory was 69.7MB in the beginning and 67.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 437.27ms. Allocated memory is still 107.0MB. Free memory was 67.0MB in the beginning and 49.3MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 624.78ms. Allocated memory is still 107.0MB. Free memory was 48.7MB in the beginning and 64.7MB in the end (delta: -16.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.23ms. Allocated memory is still 107.0MB. Free memory was 64.7MB in the beginning and 64.0MB in the end (delta: 681.0kB). 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~nondet106 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet96 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~myStruct!structFirst - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~myStruct!structFirst has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post109 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: 1573]: 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 1565. 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); [L1565] 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) [L1565] 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] [L1566] CALL CWE191_Integer_Underflow__int_rand_postdec_67_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_rand_postdec_67_structType myStruct; [L1557] data = 0 [L1558] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1558] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myStruct={5:0}] [L1558] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1559] myStruct.structFirst = data [L1560] CALL CWE191_Integer_Underflow__int_rand_postdec_67b_badSink(myStruct) [L1571] EXPR myStruct.structFirst [L1571] int data = myStruct.structFirst; [L1573] data-- 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, myStruct={7:0}] - UnprovableResult [Line: 1573]: 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, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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=16occurred 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, 10 NumberOfCodeBlocks, 10 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 06:57:42,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f87380ec-aaf3-4c0a-bc0a-663dd04d6c69/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