./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_45_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 a449432c569210e0e742c975444c0c0f958775e98f582038271b1e67633ee295 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:20:34,946 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:20:35,125 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-06 22:20:35,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:20:35,136 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:20:35,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:20:35,200 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:20:35,201 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:20:35,202 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:20:35,207 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:20:35,209 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:20:35,210 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:20:35,210 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:20:35,212 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:20:35,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:20:35,213 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:20:35,214 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:20:35,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:20:35,215 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:20:35,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:20:35,216 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:20:35,217 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:20:35,217 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:20:35,218 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:20:35,219 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:20:35,219 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:20:35,220 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:20:35,220 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:20:35,221 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:20:35,221 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:20:35,223 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:20:35,223 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:20:35,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:20:35,224 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:20:35,224 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:20:35,225 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:20:35,225 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:20:35,226 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:20:35,226 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_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a449432c569210e0e742c975444c0c0f958775e98f582038271b1e67633ee295 [2023-11-06 22:20:35,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:20:35,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:20:35,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:20:35,701 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:20:35,702 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:20:35,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_45_bad.i [2023-11-06 22:20:38,993 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:20:39,510 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:20:39,511 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_45_bad.i [2023-11-06 22:20:39,545 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/data/067b79e73/ebbeb157a9054dd58007a2f9da3dc933/FLAG65c330a94 [2023-11-06 22:20:39,563 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/data/067b79e73/ebbeb157a9054dd58007a2f9da3dc933 [2023-11-06 22:20:39,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:20:39,569 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:20:39,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:20:39,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:20:39,578 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:20:39,579 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:20:39" (1/1) ... [2023-11-06 22:20:39,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4196047c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:39, skipping insertion in model container [2023-11-06 22:20:39,581 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:20:39" (1/1) ... [2023-11-06 22:20:39,682 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:20:40,212 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:20:40,967 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:20:40,988 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:20:41,015 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:20:41,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:20:41,393 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:20:41,393 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:20:41,393 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:20:41,394 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:20:41,394 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:20:41,394 WARN L672 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:20:41,403 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:20:41,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:41 WrapperNode [2023-11-06 22:20:41,405 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:20:41,406 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:20:41,406 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:20:41,407 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:20:41,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:41" (1/1) ... [2023-11-06 22:20:41,474 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:41" (1/1) ... [2023-11-06 22:20:41,519 INFO L138 Inliner]: procedures = 501, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2023-11-06 22:20:41,521 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:20:41,522 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:20:41,522 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:20:41,523 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:20:41,534 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:41" (1/1) ... [2023-11-06 22:20:41,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:41" (1/1) ... [2023-11-06 22:20:41,553 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:41" (1/1) ... [2023-11-06 22:20:41,554 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:41" (1/1) ... [2023-11-06 22:20:41,568 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:41" (1/1) ... [2023-11-06 22:20:41,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:41" (1/1) ... [2023-11-06 22:20:41,586 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:41" (1/1) ... [2023-11-06 22:20:41,587 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:41" (1/1) ... [2023-11-06 22:20:41,591 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:20:41,592 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:20:41,593 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:20:41,593 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:20:41,594 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:41" (1/1) ... [2023-11-06 22:20:41,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:20:41,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:20:41,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:20:41,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:20:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-06 22:20:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-06 22:20:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-06 22:20:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:20:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-06 22:20:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:20:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:20:41,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:20:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:20:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-06 22:20:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:20:41,878 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:20:41,880 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:20:42,040 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:20:42,047 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:20:42,047 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:20:42,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:20:42 BoogieIcfgContainer [2023-11-06 22:20:42,050 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:20:42,054 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:20:42,054 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:20:42,058 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:20:42,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:20:39" (1/3) ... [2023-11-06 22:20:42,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6a4666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:20:42, skipping insertion in model container [2023-11-06 22:20:42,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:41" (2/3) ... [2023-11-06 22:20:42,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6a4666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:20:42, skipping insertion in model container [2023-11-06 22:20:42,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:20:42" (3/3) ... [2023-11-06 22:20:42,062 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_45_bad.i [2023-11-06 22:20:42,087 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:20:42,087 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-06 22:20:42,146 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:20:42,154 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=LoopsAndPotentialCycles, 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;@758f89d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:20:42,155 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-06 22:20:42,161 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 22:20:42,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-06 22:20:42,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:20:42,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:42,172 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-06 22:20:42,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:42,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2023-11-06 22:20:42,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:42,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185426773] [2023-11-06 22:20:42,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:42,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:42,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:20:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:42,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:42,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:42,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185426773] [2023-11-06 22:20:42,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185426773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:42,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:42,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:20:42,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351746607] [2023-11-06 22:20:42,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:42,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:20:42,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:42,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:20:42,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:20:42,723 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:20:42,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:20:42,830 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2023-11-06 22:20:42,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:20:42,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-11-06 22:20:42,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:20:42,847 INFO L225 Difference]: With dead ends: 23 [2023-11-06 22:20:42,847 INFO L226 Difference]: Without dead ends: 14 [2023-11-06 22:20:42,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:20:42,859 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 9 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:20:42,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 55 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:20:42,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-06 22:20:42,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-06 22:20:42,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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) [2023-11-06 22:20:42,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2023-11-06 22:20:42,908 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2023-11-06 22:20:42,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:20:42,910 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-11-06 22:20:42,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:20:42,910 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-06 22:20:42,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 22:20:42,914 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:20:42,914 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:42,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:20:42,915 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-06 22:20:42,916 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:42,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2023-11-06 22:20:42,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:42,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720301030] [2023-11-06 22:20:42,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:42,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:42,962 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:20:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:43,012 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:20:43,013 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:20:43,015 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-06 22:20:43,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-06 22:20:43,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:20:43,023 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 22:20:43,028 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:20:43,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:20:43 BoogieIcfgContainer [2023-11-06 22:20:43,077 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:20:43,080 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:20:43,081 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:20:43,081 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:20:43,082 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:20:42" (3/4) ... [2023-11-06 22:20:43,086 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:20:43,087 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:20:43,088 INFO L158 Benchmark]: Toolchain (without parser) took 3519.74ms. Allocated memory is still 157.3MB. Free memory was 122.0MB in the beginning and 124.9MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:20:43,089 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory was 87.5MB in the beginning and 87.4MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:20:43,096 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1834.72ms. Allocated memory is still 157.3MB. Free memory was 122.0MB in the beginning and 108.8MB in the end (delta: 13.2MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2023-11-06 22:20:43,098 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.39ms. Allocated memory is still 157.3MB. Free memory was 108.8MB in the beginning and 105.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:20:43,099 INFO L158 Benchmark]: Boogie Preprocessor took 69.51ms. Allocated memory is still 157.3MB. Free memory was 105.7MB in the beginning and 104.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:20:43,100 INFO L158 Benchmark]: RCFGBuilder took 458.04ms. Allocated memory is still 157.3MB. Free memory was 104.6MB in the beginning and 91.0MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:20:43,101 INFO L158 Benchmark]: TraceAbstraction took 1023.56ms. Allocated memory is still 157.3MB. Free memory was 91.0MB in the beginning and 125.0MB in the end (delta: -34.1MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. [2023-11-06 22:20:43,102 INFO L158 Benchmark]: Witness Printer took 7.88ms. Allocated memory is still 157.3MB. Free memory is still 124.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:20:43,108 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory was 87.5MB in the beginning and 87.4MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1834.72ms. Allocated memory is still 157.3MB. Free memory was 122.0MB in the beginning and 108.8MB in the end (delta: 13.2MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 115.39ms. Allocated memory is still 157.3MB. Free memory was 108.8MB in the beginning and 105.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.51ms. Allocated memory is still 157.3MB. Free memory was 105.7MB in the beginning and 104.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 458.04ms. Allocated memory is still 157.3MB. Free memory was 104.6MB in the beginning and 91.0MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1023.56ms. Allocated memory is still 157.3MB. Free memory was 91.0MB in the beginning and 125.0MB in the end (delta: -34.1MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. * Witness Printer took 7.88ms. Allocated memory is still 157.3MB. Free memory is still 124.9MB. There was no memory consumed. Max. memory is 16.1GB. * 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 atoi at line 1568. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int CWE190_Integer_Overflow__int_fgets_postinc_45_badData; [L1549] static int CWE190_Integer_Overflow__int_fgets_postinc_45_goodG2BData; [L1550] static int CWE190_Integer_Overflow__int_fgets_postinc_45_goodB2GData; VAL [CWE190_Integer_Overflow__int_fgets_postinc_45_badData=0, CWE190_Integer_Overflow__int_fgets_postinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_postinc_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_postinc_45_badData=0, CWE190_Integer_Overflow__int_fgets_postinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_postinc_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_postinc_45_badData=0, CWE190_Integer_Overflow__int_fgets_postinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_postinc_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=2147483654, argc=2147483654, argv={2147483652:2147483651}, argv={2147483652:2147483651}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE190_Integer_Overflow__int_fgets_postinc_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1566] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] EXPR data = atoi(inputBuffer) [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564-L1574] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1575] CWE190_Integer_Overflow__int_fgets_postinc_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE190_Integer_Overflow__int_fgets_postinc_45_badData; [L1555] data++ VAL [CWE190_Integer_Overflow__int_fgets_postinc_45_badData=2147483647, CWE190_Integer_Overflow__int_fgets_postinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_postinc_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data++=2147483647, data=2147483647, 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 21 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2023-11-06 22:20:43,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 a449432c569210e0e742c975444c0c0f958775e98f582038271b1e67633ee295 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:20:46,239 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:20:46,378 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-06 22:20:46,388 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:20:46,389 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:20:46,390 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-06 22:20:46,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:20:46,441 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:20:46,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:20:46,448 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:20:46,449 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:20:46,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:20:46,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:20:46,453 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:20:46,454 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:20:46,455 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:20:46,455 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:20:46,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:20:46,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:20:46,458 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:20:46,458 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:20:46,459 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:20:46,459 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:20:46,460 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:20:46,461 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:20:46,461 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:20:46,462 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:20:46,462 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:20:46,463 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:20:46,463 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:20:46,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:20:46,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:20:46,466 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:20:46,466 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:20:46,467 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:20:46,467 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:20:46,467 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:20:46,468 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:20:46,468 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:20:46,469 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:20:46,469 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:20:46,470 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:20:46,470 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_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a449432c569210e0e742c975444c0c0f958775e98f582038271b1e67633ee295 [2023-11-06 22:20:47,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:20:47,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:20:47,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:20:47,049 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:20:47,049 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:20:47,051 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_45_bad.i [2023-11-06 22:20:50,634 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:20:51,142 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:20:51,143 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_45_bad.i [2023-11-06 22:20:51,177 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/data/b55028840/7ae9b596e4a64e8a9d1575505b53c3bc/FLAGc60c3845a [2023-11-06 22:20:51,202 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/data/b55028840/7ae9b596e4a64e8a9d1575505b53c3bc [2023-11-06 22:20:51,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:20:51,210 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:20:51,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:20:51,214 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:20:51,225 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:20:51,226 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:20:51" (1/1) ... [2023-11-06 22:20:51,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22754498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:51, skipping insertion in model container [2023-11-06 22:20:51,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:20:51" (1/1) ... [2023-11-06 22:20:51,322 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:20:51,820 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:20:52,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:20:52,514 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:20:52,545 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:20:52,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:20:52,806 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:20:52,807 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:20:52,807 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:20:52,808 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:20:52,808 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:20:52,808 WARN L672 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:20:52,817 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:20:52,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:52 WrapperNode [2023-11-06 22:20:52,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:20:52,820 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:20:52,821 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:20:52,821 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:20:52,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:52" (1/1) ... [2023-11-06 22:20:52,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:52" (1/1) ... [2023-11-06 22:20:52,910 INFO L138 Inliner]: procedures = 506, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2023-11-06 22:20:52,911 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:20:52,912 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:20:52,912 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:20:52,912 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:20:52,925 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:52" (1/1) ... [2023-11-06 22:20:52,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:52" (1/1) ... [2023-11-06 22:20:52,937 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:52" (1/1) ... [2023-11-06 22:20:52,939 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:52" (1/1) ... [2023-11-06 22:20:52,950 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:52" (1/1) ... [2023-11-06 22:20:52,974 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:52" (1/1) ... [2023-11-06 22:20:52,978 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:52" (1/1) ... [2023-11-06 22:20:52,980 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:52" (1/1) ... [2023-11-06 22:20:52,985 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:20:52,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:20:52,986 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:20:52,986 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:20:52,987 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:52" (1/1) ... [2023-11-06 22:20:52,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:20:53,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:20:53,030 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:20:53,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:20:53,070 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-06 22:20:53,071 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-06 22:20:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-06 22:20:53,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:20:53,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:20:53,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:20:53,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:20:53,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:20:53,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:20:53,072 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-06 22:20:53,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-06 22:20:53,259 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:20:53,262 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:20:53,420 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:20:53,426 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:20:53,427 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:20:53,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:20:53 BoogieIcfgContainer [2023-11-06 22:20:53,434 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:20:53,436 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:20:53,438 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:20:53,441 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:20:53,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:20:51" (1/3) ... [2023-11-06 22:20:53,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1daea495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:20:53, skipping insertion in model container [2023-11-06 22:20:53,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:52" (2/3) ... [2023-11-06 22:20:53,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1daea495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:20:53, skipping insertion in model container [2023-11-06 22:20:53,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:20:53" (3/3) ... [2023-11-06 22:20:53,449 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_45_bad.i [2023-11-06 22:20:53,471 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:20:53,471 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-06 22:20:53,530 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:20:53,537 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=LoopsAndPotentialCycles, 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;@1b778792, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:20:53,538 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-06 22:20:53,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 22:20:53,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-06 22:20:53,553 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:20:53,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:53,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-06 22:20:53,562 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:53,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2023-11-06 22:20:53,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:20:53,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282288314] [2023-11-06 22:20:53,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:53,583 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 [2023-11-06 22:20:53,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:20:53,589 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:20:53,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:20:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:53,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:20:53,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:20:53,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:53,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:20:53,826 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:20:53,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282288314] [2023-11-06 22:20:53,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282288314] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:53,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:53,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:20:53,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211536771] [2023-11-06 22:20:53,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:53,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:20:53,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:20:53,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:20:53,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:20:53,876 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:20:53,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:20:53,896 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2023-11-06 22:20:53,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:20:53,899 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-11-06 22:20:53,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:20:53,907 INFO L225 Difference]: With dead ends: 23 [2023-11-06 22:20:53,907 INFO L226 Difference]: Without dead ends: 14 [2023-11-06 22:20:53,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:20:53,915 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:20:53,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:20:53,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-06 22:20:53,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-06 22:20:53,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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) [2023-11-06 22:20:53,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2023-11-06 22:20:53,957 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2023-11-06 22:20:53,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:20:53,959 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-11-06 22:20:53,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:20:53,960 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-06 22:20:53,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 22:20:53,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:20:53,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:53,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:20:54,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:20:54,181 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-06 22:20:54,182 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:54,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2023-11-06 22:20:54,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:20:54,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369474008] [2023-11-06 22:20:54,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:54,185 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 [2023-11-06 22:20:54,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:20:54,187 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:20:54,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/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 (3)] Waiting until timeout for monitored process [2023-11-06 22:20:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:54,351 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:20:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:54,433 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-06 22:20:54,434 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:20:54,437 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-06 22:20:54,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-06 22:20:54,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/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 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:20:54,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:20:54,646 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 22:20:54,653 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:20:54,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:20:54 BoogieIcfgContainer [2023-11-06 22:20:54,702 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:20:54,703 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:20:54,704 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:20:54,704 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:20:54,704 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:20:53" (3/4) ... [2023-11-06 22:20:54,707 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:20:54,708 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:20:54,710 INFO L158 Benchmark]: Toolchain (without parser) took 3499.06ms. Allocated memory is still 107.0MB. Free memory was 79.0MB in the beginning and 57.6MB in the end (delta: 21.4MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2023-11-06 22:20:54,715 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 71.3MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:20:54,717 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1605.25ms. Allocated memory is still 107.0MB. Free memory was 78.8MB in the beginning and 75.8MB in the end (delta: 3.0MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2023-11-06 22:20:54,717 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.73ms. Allocated memory is still 107.0MB. Free memory was 75.8MB in the beginning and 72.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:20:54,719 INFO L158 Benchmark]: Boogie Preprocessor took 73.38ms. Allocated memory is still 107.0MB. Free memory was 72.6MB in the beginning and 70.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:20:54,719 INFO L158 Benchmark]: RCFGBuilder took 447.98ms. Allocated memory is still 107.0MB. Free memory was 70.5MB in the beginning and 56.9MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 22:20:54,720 INFO L158 Benchmark]: TraceAbstraction took 1265.92ms. Allocated memory is still 107.0MB. Free memory was 56.4MB in the beginning and 58.3MB in the end (delta: -1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:20:54,723 INFO L158 Benchmark]: Witness Printer took 4.70ms. Allocated memory is still 107.0MB. Free memory was 58.3MB in the beginning and 57.6MB in the end (delta: 630.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:20:54,729 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 71.3MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1605.25ms. Allocated memory is still 107.0MB. Free memory was 78.8MB in the beginning and 75.8MB in the end (delta: 3.0MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.73ms. Allocated memory is still 107.0MB. Free memory was 75.8MB in the beginning and 72.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.38ms. Allocated memory is still 107.0MB. Free memory was 72.6MB in the beginning and 70.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 447.98ms. Allocated memory is still 107.0MB. Free memory was 70.5MB in the beginning and 56.9MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1265.92ms. Allocated memory is still 107.0MB. Free memory was 56.4MB in the beginning and 58.3MB in the end (delta: -1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.70ms. Allocated memory is still 107.0MB. Free memory was 58.3MB in the beginning and 57.6MB in the end (delta: 630.8kB). There was no memory consumed. Max. memory is 16.1GB. * 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 atoi at line 1568. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int CWE190_Integer_Overflow__int_fgets_postinc_45_badData; [L1549] static int CWE190_Integer_Overflow__int_fgets_postinc_45_goodG2BData; [L1550] static int CWE190_Integer_Overflow__int_fgets_postinc_45_goodB2GData; VAL [CWE190_Integer_Overflow__int_fgets_postinc_45_badData=0, CWE190_Integer_Overflow__int_fgets_postinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_postinc_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_postinc_45_badData=0, CWE190_Integer_Overflow__int_fgets_postinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_postinc_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_postinc_45_badData=0, CWE190_Integer_Overflow__int_fgets_postinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_postinc_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE190_Integer_Overflow__int_fgets_postinc_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1566] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] EXPR data = atoi(inputBuffer) [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564-L1574] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1575] CWE190_Integer_Overflow__int_fgets_postinc_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE190_Integer_Overflow__int_fgets_postinc_45_badData; [L1555] data++ VAL [CWE190_Integer_Overflow__int_fgets_postinc_45_badData=2147483647, CWE190_Integer_Overflow__int_fgets_postinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_postinc_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data++=2147483647, data=2147483647, 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 70 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2023-11-06 22:20:54,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2c9b0c8-ce15-472a-87e0-523cf607d951/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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