./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_01_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_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f7ea5f9ac437db0a8e9af5387b6def99826fed328a32126cb85f89e22750b6ae --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:46:54,363 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:46:54,482 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-26 10:46:54,491 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:46:54,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:46:54,533 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:46:54,534 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:46:54,534 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:46:54,535 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:46:54,540 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:46:54,541 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:46:54,541 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:46:54,542 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:46:54,544 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:46:54,544 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:46:54,545 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:46:54,545 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:46:54,546 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:46:54,546 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:46:54,548 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:46:54,548 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:46:54,549 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:46:54,549 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 10:46:54,550 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:46:54,550 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:46:54,551 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:46:54,552 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:46:54,552 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:46:54,552 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:46:54,553 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:46:54,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:46:54,554 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:46:54,555 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:46:54,555 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:46:54,555 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:46:54,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:46:54,556 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:46:54,556 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:46:54,556 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:46:54,557 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:46:54,557 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:46:54,557 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_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7ea5f9ac437db0a8e9af5387b6def99826fed328a32126cb85f89e22750b6ae [2023-11-26 10:46:54,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:46:54,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:46:54,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:46:54,895 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:46:54,896 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:46:54,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_01_bad.i [2023-11-26 10:46:58,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:46:58,600 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:46:58,601 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_01_bad.i [2023-11-26 10:46:58,648 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/data/08107dbbe/02454026d58e4d57ace9f4967a2530fe/FLAG4f63125db [2023-11-26 10:46:58,667 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/data/08107dbbe/02454026d58e4d57ace9f4967a2530fe [2023-11-26 10:46:58,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:46:58,704 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:46:58,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:46:58,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:46:58,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:46:58,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:58" (1/1) ... [2023-11-26 10:46:58,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be017f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:58, skipping insertion in model container [2023-11-26 10:46:58,718 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:58" (1/1) ... [2023-11-26 10:46:58,804 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:46:59,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:46:59,908 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:47:00,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:47:00,206 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:47:00,206 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:47:00,206 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:47:00,207 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:47:00,214 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:47:00,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00 WrapperNode [2023-11-26 10:47:00,216 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:47:00,217 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:47:00,218 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:47:00,218 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:47:00,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,267 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,305 INFO L138 Inliner]: procedures = 498, calls = 61, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2023-11-26 10:47:00,306 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:47:00,307 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:47:00,307 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:47:00,307 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:47:00,319 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,338 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,361 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [1, 4]. 80 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 2 writes are split as follows [0, 2]. [2023-11-26 10:47:00,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,365 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,371 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,373 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,375 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,380 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:47:00,381 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:47:00,381 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:47:00,382 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:47:00,383 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:47:00,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:47:00,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:47:00,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:47:00,460 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-26 10:47:00,461 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-26 10:47:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:47:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 10:47:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 10:47:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:47:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:47:00,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:47:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:47:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-26 10:47:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 10:47:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 10:47:00,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:47:00,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 10:47:00,619 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:47:00,621 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:47:00,825 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:47:00,854 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:47:00,855 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 10:47:00,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:00 BoogieIcfgContainer [2023-11-26 10:47:00,856 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:47:00,858 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:47:00,858 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:47:00,861 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:47:00,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:46:58" (1/3) ... [2023-11-26 10:47:00,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3422357b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:47:00, skipping insertion in model container [2023-11-26 10:47:00,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (2/3) ... [2023-11-26 10:47:00,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3422357b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:47:00, skipping insertion in model container [2023-11-26 10:47:00,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:00" (3/3) ... [2023-11-26 10:47:00,865 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_multiply_01_bad.i [2023-11-26 10:47:00,885 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:47:00,885 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 10:47:00,934 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:47:00,941 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;@2a14b730, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:47:00,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 10:47:00,946 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) [2023-11-26 10:47:00,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-26 10:47:00,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:00,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:00,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 10:47:00,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:00,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1611236851, now seen corresponding path program 1 times [2023-11-26 10:47:00,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:00,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871567601] [2023-11-26 10:47:00,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:00,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:47:01,141 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:47:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:47:01,250 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:47:01,254 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:47:01,255 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-26 10:47:01,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-26 10:47:01,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:47:01,265 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-26 10:47:01,269 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:47:01,294 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet103 [2023-11-26 10:47:01,296 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argc [2023-11-26 10:47:01,298 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-26 10:47:01,298 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argv [2023-11-26 10:47:01,299 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argv [2023-11-26 10:47:01,299 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argc [2023-11-26 10:47:01,299 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-26 10:47:01,300 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem101 could not be translated [2023-11-26 10:47:01,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:47:01 BoogieIcfgContainer [2023-11-26 10:47:01,310 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:47:01,312 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:47:01,312 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:47:01,312 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:47:01,313 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:00" (3/4) ... [2023-11-26 10:47:01,316 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:47:01,317 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:47:01,319 INFO L158 Benchmark]: Toolchain (without parser) took 2614.34ms. Allocated memory is still 169.9MB. Free memory was 140.4MB in the beginning and 114.7MB in the end (delta: 25.7MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2023-11-26 10:47:01,319 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory is still 105.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:47:01,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1506.96ms. Allocated memory is still 169.9MB. Free memory was 140.2MB in the beginning and 80.2MB in the end (delta: 59.9MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. [2023-11-26 10:47:01,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.98ms. Allocated memory is still 169.9MB. Free memory was 80.2MB in the beginning and 77.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:47:01,323 INFO L158 Benchmark]: Boogie Preprocessor took 73.48ms. Allocated memory is still 169.9MB. Free memory was 77.3MB in the beginning and 75.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:47:01,328 INFO L158 Benchmark]: RCFGBuilder took 474.71ms. Allocated memory is still 169.9MB. Free memory was 75.2MB in the beginning and 133.6MB in the end (delta: -58.4MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2023-11-26 10:47:01,330 INFO L158 Benchmark]: TraceAbstraction took 452.15ms. Allocated memory is still 169.9MB. Free memory was 133.1MB in the beginning and 115.5MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 10:47:01,331 INFO L158 Benchmark]: Witness Printer took 6.18ms. Allocated memory is still 169.9MB. Free memory was 115.5MB in the beginning and 114.7MB in the end (delta: 824.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:47:01,339 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 134.2MB. Free memory is still 105.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1506.96ms. Allocated memory is still 169.9MB. Free memory was 140.2MB in the beginning and 80.2MB in the end (delta: 59.9MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.98ms. Allocated memory is still 169.9MB. Free memory was 80.2MB in the beginning and 77.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.48ms. Allocated memory is still 169.9MB. Free memory was 77.3MB in the beginning and 75.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 474.71ms. Allocated memory is still 169.9MB. Free memory was 75.2MB in the beginning and 133.6MB in the end (delta: -58.4MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * TraceAbstraction took 452.15ms. Allocated memory is still 169.9MB. Free memory was 133.1MB in the beginning and 115.5MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 6.18ms. Allocated memory is still 169.9MB. Free memory was 115.5MB in the beginning and 114.7MB in the end (delta: 824.3kB). 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~nondet103 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~argc - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~argv - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~argv - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~argc - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem101 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1562. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1562] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1562] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741827, argc=1073741827, argv={1073741829:1073741828}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] CALL CWE191_Integer_Underflow__int_fscanf_multiply_01_bad() [L1550] int data; [L1551] data = 0 [L1553] EXPR \read(data) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] COND TRUE data < 0 [L1555] EXPR \read(data) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 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=16occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 10:47:01,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/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 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_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f7ea5f9ac437db0a8e9af5387b6def99826fed328a32126cb85f89e22750b6ae --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:47:04,043 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:47:04,135 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-26 10:47:04,141 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:47:04,141 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:47:04,142 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-26 10:47:04,176 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:47:04,179 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:47:04,180 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:47:04,185 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:47:04,186 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:47:04,187 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:47:04,187 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:47:04,189 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:47:04,190 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:47:04,191 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:47:04,192 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:47:04,192 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:47:04,193 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:47:04,194 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:47:04,194 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:47:04,195 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:47:04,196 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 10:47:04,196 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 10:47:04,196 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 10:47:04,197 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 10:47:04,197 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:47:04,198 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:47:04,198 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:47:04,199 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:47:04,200 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:47:04,201 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:47:04,201 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:47:04,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:47:04,202 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:47:04,202 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:47:04,203 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:47:04,204 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 10:47:04,204 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 10:47:04,204 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:47:04,205 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:47:04,205 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:47:04,205 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:47:04,206 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:47:04,206 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 10:47:04,206 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_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7ea5f9ac437db0a8e9af5387b6def99826fed328a32126cb85f89e22750b6ae [2023-11-26 10:47:04,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:47:04,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:47:04,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:47:04,687 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:47:04,687 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:47:04,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_01_bad.i [2023-11-26 10:47:07,810 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:47:08,287 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:47:08,288 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_01_bad.i [2023-11-26 10:47:08,324 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/data/5cdda3016/073323d42e2e4647aa8fbe355b22ec21/FLAGb107aec86 [2023-11-26 10:47:08,342 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/data/5cdda3016/073323d42e2e4647aa8fbe355b22ec21 [2023-11-26 10:47:08,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:47:08,350 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:47:08,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:47:08,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:47:08,361 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:47:08,362 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:47:08" (1/1) ... [2023-11-26 10:47:08,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e8352e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:08, skipping insertion in model container [2023-11-26 10:47:08,366 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:47:08" (1/1) ... [2023-11-26 10:47:08,447 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:47:09,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:47:09,542 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:47:09,643 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:47:09,770 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:47:09,771 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:47:09,771 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:47:09,771 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:47:09,785 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:47:09,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:09 WrapperNode [2023-11-26 10:47:09,786 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:47:09,788 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:47:09,788 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:47:09,788 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:47:09,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:09" (1/1) ... [2023-11-26 10:47:09,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:09" (1/1) ... [2023-11-26 10:47:09,880 INFO L138 Inliner]: procedures = 503, calls = 61, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 50 [2023-11-26 10:47:09,881 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:47:09,882 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:47:09,882 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:47:09,882 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:47:09,895 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:09" (1/1) ... [2023-11-26 10:47:09,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:09" (1/1) ... [2023-11-26 10:47:09,900 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:09" (1/1) ... [2023-11-26 10:47:09,915 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [1, 4]. 80 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 2 writes are split as follows [0, 2]. [2023-11-26 10:47:09,915 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:09" (1/1) ... [2023-11-26 10:47:09,926 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:09" (1/1) ... [2023-11-26 10:47:09,936 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:09" (1/1) ... [2023-11-26 10:47:09,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:09" (1/1) ... [2023-11-26 10:47:09,942 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:09" (1/1) ... [2023-11-26 10:47:09,944 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:09" (1/1) ... [2023-11-26 10:47:09,950 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:47:09,965 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:47:09,965 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:47:09,965 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:47:09,966 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:09" (1/1) ... [2023-11-26 10:47:09,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:47:09,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:47:09,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:47:10,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:47:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-26 10:47:10,035 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-26 10:47:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:47:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 10:47:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 10:47:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:47:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:47:10,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:47:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-26 10:47:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-26 10:47:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:47:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-26 10:47:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-26 10:47:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-26 10:47:10,230 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:47:10,232 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:47:10,462 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:47:10,533 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:47:10,533 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 10:47:10,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:10 BoogieIcfgContainer [2023-11-26 10:47:10,535 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:47:10,540 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:47:10,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:47:10,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:47:10,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:47:08" (1/3) ... [2023-11-26 10:47:10,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f450989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:47:10, skipping insertion in model container [2023-11-26 10:47:10,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:09" (2/3) ... [2023-11-26 10:47:10,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f450989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:47:10, skipping insertion in model container [2023-11-26 10:47:10,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:10" (3/3) ... [2023-11-26 10:47:10,553 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_multiply_01_bad.i [2023-11-26 10:47:10,577 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:47:10,577 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 10:47:10,647 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:47:10,655 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;@623877d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:47:10,656 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 10:47:10,660 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) [2023-11-26 10:47:10,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-26 10:47:10,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:47:10,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:10,680 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 10:47:10,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:10,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1611236851, now seen corresponding path program 1 times [2023-11-26 10:47:10,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:47:10,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57015166] [2023-11-26 10:47:10,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:10,718 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:47:10,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:47:10,722 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 10:47:10,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-26 10:47:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:47:10,942 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:47:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:47:11,036 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-26 10:47:11,040 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:47:11,041 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-26 10:47:11,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-26 10:47:11,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:47:11,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:47:11,253 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-26 10:47:11,263 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:47:11,291 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet101 [2023-11-26 10:47:11,292 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argv [2023-11-26 10:47:11,293 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argc [2023-11-26 10:47:11,296 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-26 10:47:11,297 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argc [2023-11-26 10:47:11,297 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-26 10:47:11,297 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argv [2023-11-26 10:47:11,298 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem99 could not be translated [2023-11-26 10:47:11,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:47:11 BoogieIcfgContainer [2023-11-26 10:47:11,309 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:47:11,313 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:47:11,313 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:47:11,314 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:47:11,314 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:10" (3/4) ... [2023-11-26 10:47:11,317 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:47:11,318 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:47:11,320 INFO L158 Benchmark]: Toolchain (without parser) took 2970.83ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 54.6MB in the beginning and 49.6MB in the end (delta: 5.0MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2023-11-26 10:47:11,322 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 81.8MB. Free memory was 57.3MB in the beginning and 57.2MB in the end (delta: 97.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:47:11,323 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1435.34ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 54.4MB in the beginning and 59.7MB in the end (delta: -5.3MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2023-11-26 10:47:11,331 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.68ms. Allocated memory is still 107.0MB. Free memory was 59.7MB in the beginning and 56.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:47:11,333 INFO L158 Benchmark]: Boogie Preprocessor took 68.21ms. Allocated memory is still 107.0MB. Free memory was 56.2MB in the beginning and 53.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:47:11,334 INFO L158 Benchmark]: RCFGBuilder took 571.28ms. Allocated memory is still 107.0MB. Free memory was 53.7MB in the beginning and 67.9MB in the end (delta: -14.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2023-11-26 10:47:11,335 INFO L158 Benchmark]: TraceAbstraction took 769.48ms. Allocated memory is still 107.0MB. Free memory was 67.3MB in the beginning and 50.2MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 10:47:11,337 INFO L158 Benchmark]: Witness Printer took 5.45ms. Allocated memory is still 107.0MB. Free memory was 50.2MB in the beginning and 49.6MB in the end (delta: 586.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:47:11,347 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 81.8MB. Free memory was 57.3MB in the beginning and 57.2MB in the end (delta: 97.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1435.34ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 54.4MB in the beginning and 59.7MB in the end (delta: -5.3MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.68ms. Allocated memory is still 107.0MB. Free memory was 59.7MB in the beginning and 56.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.21ms. Allocated memory is still 107.0MB. Free memory was 56.2MB in the beginning and 53.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 571.28ms. Allocated memory is still 107.0MB. Free memory was 53.7MB in the beginning and 67.9MB in the end (delta: -14.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * TraceAbstraction took 769.48ms. Allocated memory is still 107.0MB. Free memory was 67.3MB in the beginning and 50.2MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.45ms. Allocated memory is still 107.0MB. Free memory was 50.2MB in the beginning and 49.6MB in the end (delta: 586.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet101 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~argv - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~argc - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~argc - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~argv - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem99 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1562. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1562] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1562] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] CALL CWE191_Integer_Underflow__int_fscanf_multiply_01_bad() [L1550] int data; [L1551] data = 0 [L1553] EXPR \read(data) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] COND TRUE data < 0 [L1555] EXPR \read(data) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 10:47:11,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1df376b0-877f-4ea9-881a-723552bc3a73/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample