./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_42_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/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_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/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_49c23dea-504c-4886-bfec-1f4f5e0570a7/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 06721e2e071c6881d5dbfba6761267cb93e8477f520bf8d38d2cb1bb446918ab --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:16:18,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:16:18,216 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 06:16:18,222 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:16:18,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:16:18,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:16:18,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:16:18,251 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:16:18,252 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:16:18,252 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:16:18,253 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:16:18,253 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:16:18,254 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:16:18,255 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:16:18,255 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:16:18,256 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:16:18,256 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:16:18,257 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:16:18,257 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:16:18,257 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:16:18,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:16:18,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:16:18,259 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 06:16:18,260 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:16:18,260 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:16:18,260 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:16:18,261 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:16:18,261 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:16:18,262 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:16:18,262 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:16:18,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:16:18,263 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:16:18,263 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:16:18,263 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:16:18,264 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:16:18,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:16:18,264 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:16:18,264 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:16:18,264 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:16:18,265 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:16:18,265 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:16:18,265 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_49c23dea-504c-4886-bfec-1f4f5e0570a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06721e2e071c6881d5dbfba6761267cb93e8477f520bf8d38d2cb1bb446918ab [2023-11-29 06:16:18,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:16:18,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:16:18,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:16:18,527 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:16:18,528 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:16:18,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_42_bad.i [2023-11-29 06:16:21,413 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:16:21,717 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:16:21,717 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_42_bad.i [2023-11-29 06:16:21,740 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/data/d104ed485/2799c05a1f8b450ba72c2e30cb6c82cc/FLAGf065717c5 [2023-11-29 06:16:21,755 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/data/d104ed485/2799c05a1f8b450ba72c2e30cb6c82cc [2023-11-29 06:16:21,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:16:21,760 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:16:21,761 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:16:21,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:16:21,768 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:16:21,768 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:16:21" (1/1) ... [2023-11-29 06:16:21,770 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b9f32e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:21, skipping insertion in model container [2023-11-29 06:16:21,770 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:16:21" (1/1) ... [2023-11-29 06:16:21,832 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:16:22,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:16:22,639 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:16:22,732 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:16:22,869 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:16:22,869 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:16:22,870 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:16:22,870 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:16:22,877 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:16:22,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:22 WrapperNode [2023-11-29 06:16:22,878 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:16:22,879 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:16:22,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:16:22,879 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:16:22,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:22" (1/1) ... [2023-11-29 06:16:22,916 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:22" (1/1) ... [2023-11-29 06:16:22,944 INFO L138 Inliner]: procedures = 499, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 49 [2023-11-29 06:16:22,944 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:16:22,945 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:16:22,945 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:16:22,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:16:22,955 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:22" (1/1) ... [2023-11-29 06:16:22,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:22" (1/1) ... [2023-11-29 06:16:22,958 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:22" (1/1) ... [2023-11-29 06:16:22,974 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 06:16:22,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:22" (1/1) ... [2023-11-29 06:16:22,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:22" (1/1) ... [2023-11-29 06:16:22,981 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:22" (1/1) ... [2023-11-29 06:16:22,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:22" (1/1) ... [2023-11-29 06:16:22,986 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:22" (1/1) ... [2023-11-29 06:16:22,988 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:22" (1/1) ... [2023-11-29 06:16:22,991 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:16:22,992 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:16:22,992 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:16:22,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:16:22,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:22" (1/1) ... [2023-11-29 06:16:23,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:16:23,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:23,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:16:23,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:16:23,058 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 06:16:23,059 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 06:16:23,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:16:23,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:16:23,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:16:23,059 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 06:16:23,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:16:23,209 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:16:23,211 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:16:23,310 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:16:23,346 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:16:23,346 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 06:16:23,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:16:23 BoogieIcfgContainer [2023-11-29 06:16:23,347 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:16:23,350 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:16:23,350 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:16:23,354 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:16:23,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:16:21" (1/3) ... [2023-11-29 06:16:23,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4fcd48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:16:23, skipping insertion in model container [2023-11-29 06:16:23,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:22" (2/3) ... [2023-11-29 06:16:23,356 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4fcd48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:16:23, skipping insertion in model container [2023-11-29 06:16:23,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:16:23" (3/3) ... [2023-11-29 06:16:23,358 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_predec_42_bad.i [2023-11-29 06:16:23,378 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:16:23,379 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 06:16:23,427 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:16:23,435 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;@7e4002fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:16:23,435 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 06:16:23,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:16:23,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 06:16:23,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:23,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:16:23,447 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 06:16:23,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:23,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1506176128, now seen corresponding path program 1 times [2023-11-29 06:16:23,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:16:23,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831765301] [2023-11-29 06:16:23,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:23,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:16:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:16:23,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:16:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:16:23,640 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:16:23,642 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 06:16:23,643 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 06:16:23,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 06:16:23,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:16:23,650 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 06:16:23,655 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:16:23,671 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet101 [2023-11-29 06:16:23,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:16:23 BoogieIcfgContainer [2023-11-29 06:16:23,681 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:16:23,682 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:16:23,682 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:16:23,682 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:16:23,683 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:16:23" (3/4) ... [2023-11-29 06:16:23,685 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 06:16:23,686 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:16:23,688 INFO L158 Benchmark]: Toolchain (without parser) took 1927.85ms. Allocated memory was 157.3MB in the beginning and 203.4MB in the end (delta: 46.1MB). Free memory was 114.2MB in the beginning and 103.8MB in the end (delta: 10.5MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2023-11-29 06:16:23,688 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:16:23,689 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1116.85ms. Allocated memory was 157.3MB in the beginning and 203.4MB in the end (delta: 46.1MB). Free memory was 114.2MB in the beginning and 139.4MB in the end (delta: -25.2MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. [2023-11-29 06:16:23,690 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.67ms. Allocated memory is still 203.4MB. Free memory was 139.4MB in the beginning and 136.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:16:23,691 INFO L158 Benchmark]: Boogie Preprocessor took 46.25ms. Allocated memory is still 203.4MB. Free memory was 136.3MB in the beginning and 134.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:16:23,691 INFO L158 Benchmark]: RCFGBuilder took 355.09ms. Allocated memory is still 203.4MB. Free memory was 134.2MB in the beginning and 120.6MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 06:16:23,692 INFO L158 Benchmark]: TraceAbstraction took 331.09ms. Allocated memory is still 203.4MB. Free memory was 119.5MB in the beginning and 104.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 06:16:23,693 INFO L158 Benchmark]: Witness Printer took 4.59ms. Allocated memory is still 203.4MB. Free memory was 104.8MB in the beginning and 103.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:16:23,697 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1116.85ms. Allocated memory was 157.3MB in the beginning and 203.4MB in the end (delta: 46.1MB). Free memory was 114.2MB in the beginning and 139.4MB in the end (delta: -25.2MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.67ms. Allocated memory is still 203.4MB. Free memory was 139.4MB in the beginning and 136.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.25ms. Allocated memory is still 203.4MB. Free memory was 136.3MB in the beginning and 134.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 355.09ms. Allocated memory is still 203.4MB. Free memory was 134.2MB in the beginning and 120.6MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 331.09ms. Allocated memory is still 203.4MB. Free memory was 119.5MB in the beginning and 104.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 4.59ms. Allocated memory is still 203.4MB. Free memory was 104.8MB in the beginning and 103.8MB in the end (delta: 1.1MB). 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~nondet101 - 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: 1559]: 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 1567. 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); [L1567] 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) [L1567] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741825, argc=1073741825, argv={1073741827:1073741826}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] CALL CWE191_Integer_Underflow__int_min_predec_42_bad() [L1555] int data; [L1556] data = 0 [L1557] CALL, EXPR badSource(data) [L1550] data = (-0x7fffffff - 1) [L1551] return data; [L1557] RET, EXPR badSource(data) [L1557] data = badSource(data) [L1559] --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] - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 06:16:23,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/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_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/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_49c23dea-504c-4886-bfec-1f4f5e0570a7/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 06721e2e071c6881d5dbfba6761267cb93e8477f520bf8d38d2cb1bb446918ab --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:16:25,780 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:16:25,849 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-29 06:16:25,867 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:16:25,867 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:16:25,868 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-29 06:16:25,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:16:25,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:16:25,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:16:25,898 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:16:25,899 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:16:25,900 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:16:25,900 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:16:25,901 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:16:25,901 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:16:25,902 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:16:25,903 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:16:25,903 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:16:25,904 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:16:25,904 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:16:25,905 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:16:25,905 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:16:25,906 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 06:16:25,906 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 06:16:25,907 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 06:16:25,907 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 06:16:25,908 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:16:25,908 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:16:25,908 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:16:25,909 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:16:25,909 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:16:25,910 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:16:25,910 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:16:25,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:16:25,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:16:25,911 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:16:25,911 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:16:25,911 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 06:16:25,912 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 06:16:25,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:16:25,912 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:16:25,912 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:16:25,913 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:16:25,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:16:25,913 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 06:16:25,913 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_49c23dea-504c-4886-bfec-1f4f5e0570a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06721e2e071c6881d5dbfba6761267cb93e8477f520bf8d38d2cb1bb446918ab [2023-11-29 06:16:26,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:16:26,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:16:26,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:16:26,235 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:16:26,235 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:16:26,237 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_42_bad.i [2023-11-29 06:16:29,100 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:16:29,442 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:16:29,443 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_42_bad.i [2023-11-29 06:16:29,472 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/data/7528e0ab2/ece6d6d13a414bda96946ea7c30832e8/FLAG96d7c2923 [2023-11-29 06:16:29,491 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/data/7528e0ab2/ece6d6d13a414bda96946ea7c30832e8 [2023-11-29 06:16:29,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:16:29,495 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:16:29,497 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:16:29,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:16:29,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:16:29,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:16:29" (1/1) ... [2023-11-29 06:16:29,505 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e39cd74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:29, skipping insertion in model container [2023-11-29 06:16:29,505 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:16:29" (1/1) ... [2023-11-29 06:16:29,565 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:16:30,421 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:16:30,439 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:16:30,537 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:16:30,690 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:16:30,690 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:16:30,690 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:16:30,690 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:16:30,699 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:16:30,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:30 WrapperNode [2023-11-29 06:16:30,699 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:16:30,700 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:16:30,701 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:16:30,701 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:16:30,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:30" (1/1) ... [2023-11-29 06:16:30,737 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:30" (1/1) ... [2023-11-29 06:16:30,763 INFO L138 Inliner]: procedures = 504, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 48 [2023-11-29 06:16:30,763 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:16:30,764 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:16:30,764 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:16:30,764 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:16:30,777 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:30" (1/1) ... [2023-11-29 06:16:30,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:30" (1/1) ... [2023-11-29 06:16:30,781 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:30" (1/1) ... [2023-11-29 06:16:30,797 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 06:16:30,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:30" (1/1) ... [2023-11-29 06:16:30,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:30" (1/1) ... [2023-11-29 06:16:30,808 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:30" (1/1) ... [2023-11-29 06:16:30,810 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:30" (1/1) ... [2023-11-29 06:16:30,814 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:30" (1/1) ... [2023-11-29 06:16:30,816 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:30" (1/1) ... [2023-11-29 06:16:30,820 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:16:30,821 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:16:30,821 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:16:30,822 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:16:30,822 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:30" (1/1) ... [2023-11-29 06:16:30,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:16:30,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:16:30,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:16:30,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:16:30,905 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 06:16:30,905 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 06:16:30,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 06:16:30,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:16:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:16:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:16:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 06:16:31,065 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:16:31,067 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:16:31,188 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:16:31,229 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:16:31,230 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 06:16:31,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:16:31 BoogieIcfgContainer [2023-11-29 06:16:31,230 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:16:31,233 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:16:31,234 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:16:31,237 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:16:31,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:16:29" (1/3) ... [2023-11-29 06:16:31,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171bdd87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:16:31, skipping insertion in model container [2023-11-29 06:16:31,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:16:30" (2/3) ... [2023-11-29 06:16:31,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171bdd87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:16:31, skipping insertion in model container [2023-11-29 06:16:31,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:16:31" (3/3) ... [2023-11-29 06:16:31,240 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_predec_42_bad.i [2023-11-29 06:16:31,257 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:16:31,257 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 06:16:31,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:16:31,308 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;@5f4a2da9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:16:31,308 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 06:16:31,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:16:31,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 06:16:31,320 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:16:31,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:16:31,322 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 06:16:31,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:16:31,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1506176128, now seen corresponding path program 1 times [2023-11-29 06:16:31,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:16:31,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928368426] [2023-11-29 06:16:31,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:16:31,344 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 06:16:31,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:16:31,346 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/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 06:16:31,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/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 06:16:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:16:31,447 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:16:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:16:31,499 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-29 06:16:31,500 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 06:16:31,502 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 06:16:31,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 06:16:31,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/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 06:16:31,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/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 06:16:31,709 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 06:16:31,714 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:16:31,731 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet99 [2023-11-29 06:16:31,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:16:31 BoogieIcfgContainer [2023-11-29 06:16:31,743 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:16:31,743 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:16:31,743 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:16:31,744 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:16:31,744 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:16:31" (3/4) ... [2023-11-29 06:16:31,747 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 06:16:31,748 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:16:31,751 INFO L158 Benchmark]: Toolchain (without parser) took 2253.51ms. Allocated memory was 73.4MB in the beginning and 125.8MB in the end (delta: 52.4MB). Free memory was 50.3MB in the beginning and 73.6MB in the end (delta: -23.3MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2023-11-29 06:16:31,752 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 73.4MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:16:31,753 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1202.54ms. Allocated memory was 73.4MB in the beginning and 125.8MB in the end (delta: 52.4MB). Free memory was 50.1MB in the beginning and 56.8MB in the end (delta: -6.7MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2023-11-29 06:16:31,753 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.92ms. Allocated memory is still 125.8MB. Free memory was 56.8MB in the beginning and 54.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:16:31,754 INFO L158 Benchmark]: Boogie Preprocessor took 56.58ms. Allocated memory is still 125.8MB. Free memory was 54.0MB in the beginning and 51.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:16:31,755 INFO L158 Benchmark]: RCFGBuilder took 409.39ms. Allocated memory is still 125.8MB. Free memory was 51.2MB in the beginning and 90.4MB in the end (delta: -39.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 06:16:31,755 INFO L158 Benchmark]: TraceAbstraction took 509.59ms. Allocated memory is still 125.8MB. Free memory was 89.4MB in the beginning and 73.6MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 06:16:31,756 INFO L158 Benchmark]: Witness Printer took 4.59ms. Allocated memory is still 125.8MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:16:31,759 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 73.4MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1202.54ms. Allocated memory was 73.4MB in the beginning and 125.8MB in the end (delta: 52.4MB). Free memory was 50.1MB in the beginning and 56.8MB in the end (delta: -6.7MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.92ms. Allocated memory is still 125.8MB. Free memory was 56.8MB in the beginning and 54.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.58ms. Allocated memory is still 125.8MB. Free memory was 54.0MB in the beginning and 51.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 409.39ms. Allocated memory is still 125.8MB. Free memory was 51.2MB in the beginning and 90.4MB in the end (delta: -39.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 509.59ms. Allocated memory is still 125.8MB. Free memory was 89.4MB in the beginning and 73.6MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.59ms. Allocated memory is still 125.8MB. Free memory is still 73.6MB. 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~nondet99 - 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: 1559]: 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 1567. 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); [L1567] 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) [L1567] 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] [L1568] CALL CWE191_Integer_Underflow__int_min_predec_42_bad() [L1555] int data; [L1556] data = 0 [L1557] CALL, EXPR badSource(data) [L1550] data = (-0x7fffffff - 1) [L1551] return data; [L1557] RET, EXPR badSource(data) [L1557] data = badSource(data) [L1559] --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] - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 06:16:31,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c23dea-504c-4886-bfec-1f4f5e0570a7/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