./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_31_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_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/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_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/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_41d5fff9-0434-483a-a629-5166b8c99631/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 5e9afc5780e8a4b9f0ff37d4e977f12ee8b12977c04701e0eedbb9c1647d0234 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:25:05,098 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:25:05,173 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 00:25:05,178 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:25:05,179 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:25:05,207 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:25:05,208 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:25:05,208 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:25:05,209 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:25:05,210 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:25:05,210 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:25:05,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:25:05,212 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:25:05,213 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:25:05,213 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:25:05,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:25:05,214 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:25:05,215 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:25:05,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:25:05,216 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:25:05,216 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:25:05,217 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:25:05,217 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 00:25:05,218 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:25:05,218 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:25:05,219 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:25:05,219 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:25:05,220 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:25:05,220 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:25:05,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:25:05,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:25:05,222 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:25:05,222 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:25:05,222 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:25:05,222 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:25:05,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:25:05,223 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:25:05,223 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:25:05,223 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:25:05,223 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:25:05,224 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:25:05,224 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_41d5fff9-0434-483a-a629-5166b8c99631/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e9afc5780e8a4b9f0ff37d4e977f12ee8b12977c04701e0eedbb9c1647d0234 [2023-11-29 00:25:05,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:25:05,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:25:05,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:25:05,511 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:25:05,511 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:25:05,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_31_bad.i [2023-11-29 00:25:08,850 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:25:09,207 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:25:09,208 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_31_bad.i [2023-11-29 00:25:09,238 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/data/d62a15ea9/975a62e28d2d4d0ca7990869fbd19d6c/FLAG698b12c08 [2023-11-29 00:25:09,256 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/data/d62a15ea9/975a62e28d2d4d0ca7990869fbd19d6c [2023-11-29 00:25:09,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:25:09,261 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:25:09,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:25:09,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:25:09,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:25:09,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:25:09" (1/1) ... [2023-11-29 00:25:09,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f775b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:09, skipping insertion in model container [2023-11-29 00:25:09,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:25:09" (1/1) ... [2023-11-29 00:25:09,346 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:25:10,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:25:10,414 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:25:10,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:25:10,688 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:25:10,688 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:25:10,688 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:25:10,689 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:25:10,698 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:25:10,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:10 WrapperNode [2023-11-29 00:25:10,699 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:25:10,700 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:25:10,700 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:25:10,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:25:10,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:10" (1/1) ... [2023-11-29 00:25:10,738 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:10" (1/1) ... [2023-11-29 00:25:10,773 INFO L138 Inliner]: procedures = 498, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 92 [2023-11-29 00:25:10,773 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:25:10,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:25:10,774 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:25:10,774 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:25:10,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:10" (1/1) ... [2023-11-29 00:25:10,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:10" (1/1) ... [2023-11-29 00:25:10,791 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:10" (1/1) ... [2023-11-29 00:25:10,806 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2023-11-29 00:25:10,807 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:10" (1/1) ... [2023-11-29 00:25:10,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:10" (1/1) ... [2023-11-29 00:25:10,812 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:10" (1/1) ... [2023-11-29 00:25:10,814 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:10" (1/1) ... [2023-11-29 00:25:10,816 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:10" (1/1) ... [2023-11-29 00:25:10,817 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:10" (1/1) ... [2023-11-29 00:25:10,820 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:25:10,821 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:25:10,821 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:25:10,821 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:25:10,822 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:10" (1/1) ... [2023-11-29 00:25:10,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:25:10,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:25:10,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:25:10,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:25:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 00:25:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 00:25:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:25:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:25:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:25:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 00:25:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:25:11,065 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:25:11,068 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:25:11,270 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:25:11,311 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:25:11,311 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 00:25:11,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:25:11 BoogieIcfgContainer [2023-11-29 00:25:11,312 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:25:11,315 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:25:11,316 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:25:11,320 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:25:11,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:25:09" (1/3) ... [2023-11-29 00:25:11,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2777cf25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:25:11, skipping insertion in model container [2023-11-29 00:25:11,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:10" (2/3) ... [2023-11-29 00:25:11,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2777cf25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:25:11, skipping insertion in model container [2023-11-29 00:25:11,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:25:11" (3/3) ... [2023-11-29 00:25:11,324 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_31_bad.i [2023-11-29 00:25:11,349 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:25:11,349 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 00:25:11,421 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:25:11,429 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;@7586f52e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:25:11,429 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 00:25:11,434 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 00:25:11,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 00:25:11,445 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:25:11,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:25:11,446 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 00:25:11,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:25:11,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1103645186, now seen corresponding path program 1 times [2023-11-29 00:25:11,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:25:11,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092647150] [2023-11-29 00:25:11,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:25:11,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:25:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:25:11,629 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:25:11,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:25:11,693 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:25:11,696 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 00:25:11,697 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 00:25:11,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 00:25:11,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:25:11,703 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 00:25:11,707 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 00:25:11,725 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet111 [2023-11-29 00:25:11,729 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet104 could not be translated [2023-11-29 00:25:11,729 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet98 could not be translated [2023-11-29 00:25:11,729 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet105 could not be translated [2023-11-29 00:25:11,729 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet106 could not be translated [2023-11-29 00:25:11,730 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet104 could not be translated [2023-11-29 00:25:11,730 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet107 could not be translated [2023-11-29 00:25:11,730 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet98 could not be translated [2023-11-29 00:25:11,730 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet108 could not be translated [2023-11-29 00:25:11,730 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet105 could not be translated [2023-11-29 00:25:11,730 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet106 could not be translated [2023-11-29 00:25:11,731 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite109 could not be translated [2023-11-29 00:25:11,731 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet105 could not be translated [2023-11-29 00:25:11,731 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet108 could not be translated [2023-11-29 00:25:11,731 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet98 could not be translated [2023-11-29 00:25:11,732 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet107 could not be translated [2023-11-29 00:25:11,732 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet106 could not be translated [2023-11-29 00:25:11,732 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet104 could not be translated [2023-11-29 00:25:11,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 12:25:11 BoogieIcfgContainer [2023-11-29 00:25:11,743 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 00:25:11,744 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:25:11,745 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:25:11,745 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:25:11,745 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:25:11" (3/4) ... [2023-11-29 00:25:11,748 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 00:25:11,750 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:25:11,751 INFO L158 Benchmark]: Toolchain (without parser) took 2489.59ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 101.4MB in the beginning and 137.6MB in the end (delta: -36.2MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2023-11-29 00:25:11,752 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 102.8MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:25:11,753 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1435.75ms. Allocated memory is still 148.9MB. Free memory was 101.0MB in the beginning and 78.8MB in the end (delta: 22.3MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2023-11-29 00:25:11,754 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.72ms. Allocated memory is still 148.9MB. Free memory was 78.8MB in the beginning and 75.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 00:25:11,754 INFO L158 Benchmark]: Boogie Preprocessor took 46.04ms. Allocated memory is still 148.9MB. Free memory was 75.5MB in the beginning and 73.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:25:11,755 INFO L158 Benchmark]: RCFGBuilder took 491.11ms. Allocated memory is still 148.9MB. Free memory was 73.4MB in the beginning and 56.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 00:25:11,756 INFO L158 Benchmark]: TraceAbstraction took 428.14ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 55.7MB in the beginning and 137.6MB in the end (delta: -81.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:25:11,757 INFO L158 Benchmark]: Witness Printer took 5.44ms. Allocated memory is still 186.6MB. Free memory is still 137.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:25:11,760 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 102.8MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1435.75ms. Allocated memory is still 148.9MB. Free memory was 101.0MB in the beginning and 78.8MB in the end (delta: 22.3MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.72ms. Allocated memory is still 148.9MB. Free memory was 78.8MB in the beginning and 75.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.04ms. Allocated memory is still 148.9MB. Free memory was 75.5MB in the beginning and 73.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 491.11ms. Allocated memory is still 148.9MB. Free memory was 73.4MB in the beginning and 56.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 428.14ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 55.7MB in the beginning and 137.6MB in the end (delta: -81.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.44ms. Allocated memory is still 186.6MB. Free memory is still 137.6MB. 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~nondet111 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet104 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet98 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet105 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet106 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~nondet98 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet108 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet105 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet106 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite109 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet105 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet108 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet98 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet107 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet106 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet104 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: 1557]: 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)=2147483648, argc=2147483648, argv={2147483650:2147483649}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL CWE191_Integer_Underflow__int_rand_sub_31_bad() [L1550] int data; [L1551] data = 0 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] 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] [L1552] 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] [L1552] 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] [L1552] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] int dataCopy = data; [L1555] int data = dataCopy; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, data=-2147483648, dataCopy=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, data=-2147483648, dataCopy=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1557]: 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 00:25:11,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/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_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/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_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/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_41d5fff9-0434-483a-a629-5166b8c99631/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 5e9afc5780e8a4b9f0ff37d4e977f12ee8b12977c04701e0eedbb9c1647d0234 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:25:14,093 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:25:14,175 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-29 00:25:14,194 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:25:14,195 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:25:14,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-29 00:25:14,227 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:25:14,227 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:25:14,228 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:25:14,229 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:25:14,229 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:25:14,230 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:25:14,231 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:25:14,232 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:25:14,232 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:25:14,233 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:25:14,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:25:14,234 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:25:14,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:25:14,235 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:25:14,236 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:25:14,236 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:25:14,237 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 00:25:14,237 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 00:25:14,238 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 00:25:14,238 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 00:25:14,238 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:25:14,239 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:25:14,239 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:25:14,240 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:25:14,240 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:25:14,241 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:25:14,241 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:25:14,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:25:14,242 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:25:14,242 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:25:14,242 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:25:14,243 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 00:25:14,243 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 00:25:14,243 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:25:14,243 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:25:14,244 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:25:14,244 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:25:14,244 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:25:14,244 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 00:25:14,245 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_41d5fff9-0434-483a-a629-5166b8c99631/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e9afc5780e8a4b9f0ff37d4e977f12ee8b12977c04701e0eedbb9c1647d0234 [2023-11-29 00:25:14,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:25:14,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:25:14,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:25:14,649 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:25:14,650 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:25:14,652 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_31_bad.i [2023-11-29 00:25:17,959 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:25:18,374 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:25:18,375 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_31_bad.i [2023-11-29 00:25:18,400 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/data/63de30ce0/fb6055d0de8c440baf9d9aa118f52835/FLAG1c6789050 [2023-11-29 00:25:18,415 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/data/63de30ce0/fb6055d0de8c440baf9d9aa118f52835 [2023-11-29 00:25:18,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:25:18,420 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:25:18,422 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:25:18,422 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:25:18,427 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:25:18,428 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:25:18" (1/1) ... [2023-11-29 00:25:18,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1024423c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:18, skipping insertion in model container [2023-11-29 00:25:18,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:25:18" (1/1) ... [2023-11-29 00:25:18,492 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:25:19,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:25:19,495 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:25:19,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:25:19,776 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:25:19,776 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:25:19,777 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:25:19,777 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:25:19,786 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:25:19,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:19 WrapperNode [2023-11-29 00:25:19,787 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:25:19,789 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:25:19,789 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:25:19,789 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:25:19,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:19" (1/1) ... [2023-11-29 00:25:19,840 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:19" (1/1) ... [2023-11-29 00:25:19,869 INFO L138 Inliner]: procedures = 503, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2023-11-29 00:25:19,869 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:25:19,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:25:19,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:25:19,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:25:19,880 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:19" (1/1) ... [2023-11-29 00:25:19,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:19" (1/1) ... [2023-11-29 00:25:19,885 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:19" (1/1) ... [2023-11-29 00:25:19,903 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2023-11-29 00:25:19,903 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:19" (1/1) ... [2023-11-29 00:25:19,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:19" (1/1) ... [2023-11-29 00:25:19,915 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:19" (1/1) ... [2023-11-29 00:25:19,917 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:19" (1/1) ... [2023-11-29 00:25:19,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:19" (1/1) ... [2023-11-29 00:25:19,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:19" (1/1) ... [2023-11-29 00:25:19,926 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:25:19,927 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:25:19,927 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:25:19,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:25:19,928 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:19" (1/1) ... [2023-11-29 00:25:19,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:25:19,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:25:19,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:25:19,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:25:20,001 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 00:25:20,001 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 00:25:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 00:25:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:25:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:25:20,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:25:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 00:25:20,179 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:25:20,182 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:25:20,317 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:25:20,363 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:25:20,363 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 00:25:20,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:25:20 BoogieIcfgContainer [2023-11-29 00:25:20,364 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:25:20,367 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:25:20,367 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:25:20,371 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:25:20,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:25:18" (1/3) ... [2023-11-29 00:25:20,372 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a81d08a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:25:20, skipping insertion in model container [2023-11-29 00:25:20,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:25:19" (2/3) ... [2023-11-29 00:25:20,373 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a81d08a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:25:20, skipping insertion in model container [2023-11-29 00:25:20,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:25:20" (3/3) ... [2023-11-29 00:25:20,375 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_31_bad.i [2023-11-29 00:25:20,398 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:25:20,398 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 00:25:20,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:25:20,463 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;@3460154, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:25:20,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 00:25:20,468 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 00:25:20,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 00:25:20,478 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:25:20,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:25:20,480 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 00:25:20,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:25:20,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1591263136, now seen corresponding path program 1 times [2023-11-29 00:25:20,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:25:20,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015906333] [2023-11-29 00:25:20,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:25:20,504 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:25:20,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:25:20,507 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:25:20,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 00:25:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:25:20,638 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:25:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:25:20,707 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-29 00:25:20,709 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 00:25:20,710 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 00:25:20,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 00:25:20,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:25:20,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:25:20,920 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 00:25:20,924 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 00:25:20,942 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet105 [2023-11-29 00:25:20,945 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated [2023-11-29 00:25:20,945 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated [2023-11-29 00:25:20,945 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet96 could not be translated [2023-11-29 00:25:20,945 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated [2023-11-29 00:25:20,946 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet100 could not be translated [2023-11-29 00:25:20,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 12:25:20 BoogieIcfgContainer [2023-11-29 00:25:20,955 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 00:25:20,956 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:25:20,956 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:25:20,957 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:25:20,957 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:25:20" (3/4) ... [2023-11-29 00:25:20,960 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 00:25:20,961 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:25:20,963 INFO L158 Benchmark]: Toolchain (without parser) took 2542.25ms. Allocated memory is still 115.3MB. Free memory was 87.9MB in the beginning and 53.3MB in the end (delta: 34.6MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. [2023-11-29 00:25:20,963 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 67.1MB. Free memory is still 43.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:25:20,964 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1365.78ms. Allocated memory is still 115.3MB. Free memory was 87.6MB in the beginning and 50.3MB in the end (delta: 37.3MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2023-11-29 00:25:20,965 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.63ms. Allocated memory is still 115.3MB. Free memory was 50.3MB in the beginning and 89.7MB in the end (delta: -39.4MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-11-29 00:25:20,966 INFO L158 Benchmark]: Boogie Preprocessor took 56.91ms. Allocated memory is still 115.3MB. Free memory was 89.7MB in the beginning and 86.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 00:25:20,966 INFO L158 Benchmark]: RCFGBuilder took 436.79ms. Allocated memory is still 115.3MB. Free memory was 86.9MB in the beginning and 71.5MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 00:25:20,967 INFO L158 Benchmark]: TraceAbstraction took 588.57ms. Allocated memory is still 115.3MB. Free memory was 70.8MB in the beginning and 53.3MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 00:25:20,968 INFO L158 Benchmark]: Witness Printer took 5.14ms. Allocated memory is still 115.3MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:25:20,972 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 67.1MB. Free memory is still 43.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1365.78ms. Allocated memory is still 115.3MB. Free memory was 87.6MB in the beginning and 50.3MB in the end (delta: 37.3MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.63ms. Allocated memory is still 115.3MB. Free memory was 50.3MB in the beginning and 89.7MB in the end (delta: -39.4MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.91ms. Allocated memory is still 115.3MB. Free memory was 89.7MB in the beginning and 86.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 436.79ms. Allocated memory is still 115.3MB. Free memory was 86.9MB in the beginning and 71.5MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 588.57ms. Allocated memory is still 115.3MB. Free memory was 70.8MB in the beginning and 53.3MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 5.14ms. Allocated memory is still 115.3MB. Free memory is still 53.3MB. 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~nondet105 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet96 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 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: 1557]: 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_sub_31_bad() [L1550] int data; [L1551] data = 0 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] 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] [L1552] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] int dataCopy = data; [L1555] int data = dataCopy; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, data=-2147483648, dataCopy=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, data=-2147483648, dataCopy=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1557]: 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, 0.0s 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 00:25:20,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41d5fff9-0434-483a-a629-5166b8c99631/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