./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_32_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 71233b704a887dd9fc786070e887e4b97c786b9c03fd7cf637150724d8ffd9ad --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:57:26,177 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:57:26,289 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-19 04:57:26,294 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:57:26,296 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:57:26,328 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:57:26,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:57:26,330 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:57:26,331 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:57:26,331 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:57:26,332 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:57:26,333 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:57:26,334 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:57:26,334 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:57:26,335 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:57:26,336 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:57:26,336 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:57:26,337 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:57:26,338 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:57:26,339 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:57:26,339 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:57:26,340 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:57:26,341 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:57:26,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:57:26,343 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:57:26,344 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:57:26,344 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:57:26,345 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:57:26,345 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:57:26,346 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:57:26,347 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:57:26,347 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:57:26,348 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:57:26,348 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:57:26,349 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:57:26,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:57:26,350 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:57:26,350 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:57:26,351 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:57:26,351 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:57:26,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:57:26,352 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:57:26,352 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:57:26,353 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:57:26,353 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71233b704a887dd9fc786070e887e4b97c786b9c03fd7cf637150724d8ffd9ad [2023-11-19 04:57:26,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:57:26,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:57:26,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:57:26,670 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:57:26,671 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:57:26,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_32_bad.i [2023-11-19 04:57:29,940 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:57:30,382 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:57:30,383 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_32_bad.i [2023-11-19 04:57:30,425 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/data/4175d8efe/ccde43abdbe041d98b7f6c7ec3897c63/FLAG4a98b329c [2023-11-19 04:57:30,447 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/data/4175d8efe/ccde43abdbe041d98b7f6c7ec3897c63 [2023-11-19 04:57:30,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:57:30,452 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:57:30,454 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:57:30,454 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:57:30,460 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:57:30,464 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:30" (1/1) ... [2023-11-19 04:57:30,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d6b84b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:30, skipping insertion in model container [2023-11-19 04:57:30,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:30" (1/1) ... [2023-11-19 04:57:30,559 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:57:30,919 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:57:31,708 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:57:31,728 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:57:31,750 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:57:31,826 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:57:31,982 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:57:31,983 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:57:31,983 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:57:31,983 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:57:31,983 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:57:31,983 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:57:31,992 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:57:31,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31 WrapperNode [2023-11-19 04:57:31,993 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:57:31,994 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:57:31,995 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:57:31,995 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:57:32,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2023-11-19 04:57:32,031 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2023-11-19 04:57:32,071 INFO L138 Inliner]: procedures = 500, calls = 70, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2023-11-19 04:57:32,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:57:32,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:57:32,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:57:32,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:57:32,084 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2023-11-19 04:57:32,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2023-11-19 04:57:32,107 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2023-11-19 04:57:32,107 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2023-11-19 04:57:32,114 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2023-11-19 04:57:32,128 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2023-11-19 04:57:32,130 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2023-11-19 04:57:32,132 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2023-11-19 04:57:32,136 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:57:32,143 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:57:32,143 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:57:32,144 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:57:32,144 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2023-11-19 04:57:32,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:57:32,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:57:32,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:57:32,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:57:32,228 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 04:57:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 04:57:32,230 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 04:57:32,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:57:32,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:57:32,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:57:32,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:57:32,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:57:32,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:57:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:57:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 04:57:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:57:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:57:32,416 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:57:32,420 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:57:32,628 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:57:32,668 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:57:32,668 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:57:32,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:32 BoogieIcfgContainer [2023-11-19 04:57:32,674 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:57:32,677 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:57:32,678 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:57:32,682 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:57:32,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:57:30" (1/3) ... [2023-11-19 04:57:32,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71683763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:32, skipping insertion in model container [2023-11-19 04:57:32,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (2/3) ... [2023-11-19 04:57:32,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71683763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:32, skipping insertion in model container [2023-11-19 04:57:32,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:32" (3/3) ... [2023-11-19 04:57:32,686 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_32_bad.i [2023-11-19 04:57:32,712 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:57:32,712 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 04:57:32,778 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:57:32,786 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@71df7d90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:57:32,786 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 04:57:32,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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) [2023-11-19 04:57:32,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:57:32,803 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:32,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:32,805 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 04:57:32,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:32,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1607565872, now seen corresponding path program 1 times [2023-11-19 04:57:32,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:32,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122689256] [2023-11-19 04:57:32,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:32,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:33,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:57:33,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:33,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122689256] [2023-11-19 04:57:33,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122689256] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:33,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:33,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:57:33,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439043657] [2023-11-19 04:57:33,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:33,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:57:33,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:33,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:57:33,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:57:33,673 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2023-11-19 04:57:33,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:33,772 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2023-11-19 04:57:33,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:57:33,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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 8 [2023-11-19 04:57:33,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:33,781 INFO L225 Difference]: With dead ends: 15 [2023-11-19 04:57:33,782 INFO L226 Difference]: Without dead ends: 11 [2023-11-19 04:57:33,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:57:33,795 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:33,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 22 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:57:33,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-11-19 04:57:33,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-19 04:57:33,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 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) [2023-11-19 04:57:33,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2023-11-19 04:57:33,845 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2023-11-19 04:57:33,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:33,846 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-11-19 04:57:33,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2023-11-19 04:57:33,847 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-11-19 04:57:33,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:57:33,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:33,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:33,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:57:33,849 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 04:57:33,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:33,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1705065466, now seen corresponding path program 1 times [2023-11-19 04:57:33,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:33,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480193945] [2023-11-19 04:57:33,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:33,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:57:33,908 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:57:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:57:33,960 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:57:33,961 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:57:33,963 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-19 04:57:33,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-19 04:57:33,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:57:33,970 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 04:57:33,975 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:57:34,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:57:34 BoogieIcfgContainer [2023-11-19 04:57:34,004 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:57:34,004 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:57:34,005 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:57:34,005 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:57:34,005 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:32" (3/4) ... [2023-11-19 04:57:34,008 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:57:34,009 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:57:34,010 INFO L158 Benchmark]: Toolchain (without parser) took 3557.40ms. Allocated memory is still 192.9MB. Free memory was 142.6MB in the beginning and 95.5MB in the end (delta: 47.1MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. [2023-11-19 04:57:34,010 INFO L158 Benchmark]: CDTParser took 1.36ms. Allocated memory is still 125.8MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:57:34,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1539.80ms. Allocated memory is still 192.9MB. Free memory was 142.6MB in the beginning and 79.8MB in the end (delta: 62.8MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-19 04:57:34,011 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.84ms. Allocated memory is still 192.9MB. Free memory was 79.8MB in the beginning and 76.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:57:34,012 INFO L158 Benchmark]: Boogie Preprocessor took 69.42ms. Allocated memory is still 192.9MB. Free memory was 76.4MB in the beginning and 75.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:57:34,013 INFO L158 Benchmark]: RCFGBuilder took 531.40ms. Allocated memory is still 192.9MB. Free memory was 75.2MB in the beginning and 155.2MB in the end (delta: -80.0MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2023-11-19 04:57:34,013 INFO L158 Benchmark]: TraceAbstraction took 1326.42ms. Allocated memory is still 192.9MB. Free memory was 155.2MB in the beginning and 96.5MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2023-11-19 04:57:34,014 INFO L158 Benchmark]: Witness Printer took 4.51ms. Allocated memory is still 192.9MB. Free memory was 96.5MB in the beginning and 95.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:57:34,017 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.36ms. Allocated memory is still 125.8MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1539.80ms. Allocated memory is still 192.9MB. Free memory was 142.6MB in the beginning and 79.8MB in the end (delta: 62.8MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.84ms. Allocated memory is still 192.9MB. Free memory was 79.8MB in the beginning and 76.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.42ms. Allocated memory is still 192.9MB. Free memory was 76.4MB in the beginning and 75.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 531.40ms. Allocated memory is still 192.9MB. Free memory was 75.2MB in the beginning and 155.2MB in the end (delta: -80.0MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1326.42ms. Allocated memory is still 192.9MB. Free memory was 155.2MB in the beginning and 96.5MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Witness Printer took 4.51ms. Allocated memory is still 192.9MB. Free memory was 96.5MB in the beginning and 95.5MB in the end (delta: 1.0MB). 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: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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); [L1581] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=2147483651, argc=2147483651, argv={2147483655:2147483652}, argv={2147483655:2147483652}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE190_Integer_Overflow__int_fgets_preinc_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] EXPR data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556-L1566] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1567] EXPR *dataPtr1 = data [L1554-L1568] { int data = *dataPtr1; { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } *dataPtr1 = data; } [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1572] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, data={7:0}, dataPtr1={7:0}, dataPtr2={7:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1572]: 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 9 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 0.5s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 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 [2023-11-19 04:57:34,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 71233b704a887dd9fc786070e887e4b97c786b9c03fd7cf637150724d8ffd9ad --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:57:36,786 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:57:36,940 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-19 04:57:36,949 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:57:36,950 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:57:36,999 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:57:37,000 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:57:37,000 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:57:37,002 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:57:37,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:57:37,007 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:57:37,008 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:57:37,008 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:57:37,010 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:57:37,011 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:57:37,011 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:57:37,013 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:57:37,013 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:57:37,014 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:57:37,015 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:57:37,015 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:57:37,016 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:57:37,016 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:57:37,017 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:57:37,017 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:57:37,018 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:57:37,018 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:57:37,018 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:57:37,019 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:57:37,019 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:57:37,021 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:57:37,021 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:57:37,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:57:37,022 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:57:37,022 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:57:37,022 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:57:37,023 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:57:37,023 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:57:37,023 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:57:37,024 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:57:37,024 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:57:37,025 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71233b704a887dd9fc786070e887e4b97c786b9c03fd7cf637150724d8ffd9ad [2023-11-19 04:57:37,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:57:37,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:57:37,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:57:37,466 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:57:37,467 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:57:37,469 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_32_bad.i [2023-11-19 04:57:40,918 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:57:41,421 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:57:41,422 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_32_bad.i [2023-11-19 04:57:41,460 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/data/fc71d978f/ace194f34768491b8a408af5d2d049bb/FLAGce355a411 [2023-11-19 04:57:41,483 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/data/fc71d978f/ace194f34768491b8a408af5d2d049bb [2023-11-19 04:57:41,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:57:41,492 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:57:41,496 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:57:41,496 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:57:41,501 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:57:41,502 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:41" (1/1) ... [2023-11-19 04:57:41,503 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f00dd12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:41, skipping insertion in model container [2023-11-19 04:57:41,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:41" (1/1) ... [2023-11-19 04:57:41,598 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:57:42,101 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:57:42,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:57:42,731 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:57:42,753 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:57:42,880 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:57:43,014 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:57:43,015 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:57:43,019 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:57:43,019 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:57:43,020 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:57:43,021 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:57:43,029 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:57:43,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:43 WrapperNode [2023-11-19 04:57:43,030 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:57:43,031 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:57:43,031 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:57:43,032 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:57:43,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:43" (1/1) ... [2023-11-19 04:57:43,076 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:43" (1/1) ... [2023-11-19 04:57:43,104 INFO L138 Inliner]: procedures = 505, calls = 70, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2023-11-19 04:57:43,123 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:57:43,124 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:57:43,125 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:57:43,125 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:57:43,134 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:43" (1/1) ... [2023-11-19 04:57:43,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:43" (1/1) ... [2023-11-19 04:57:43,140 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:43" (1/1) ... [2023-11-19 04:57:43,140 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:43" (1/1) ... [2023-11-19 04:57:43,151 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:43" (1/1) ... [2023-11-19 04:57:43,153 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:43" (1/1) ... [2023-11-19 04:57:43,157 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:43" (1/1) ... [2023-11-19 04:57:43,159 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:43" (1/1) ... [2023-11-19 04:57:43,164 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:57:43,165 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:57:43,166 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:57:43,166 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:57:43,167 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:43" (1/1) ... [2023-11-19 04:57:43,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:57:43,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:57:43,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:57:43,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:57:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 04:57:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 04:57:43,251 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 04:57:43,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:57:43,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:57:43,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:57:43,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:57:43,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:57:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 04:57:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:57:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:57:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 04:57:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-19 04:57:43,462 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:57:43,464 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:57:43,674 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:57:43,682 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:57:43,682 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:57:43,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:43 BoogieIcfgContainer [2023-11-19 04:57:43,686 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:57:43,688 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:57:43,688 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:57:43,692 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:57:43,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:57:41" (1/3) ... [2023-11-19 04:57:43,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4615a387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:43, skipping insertion in model container [2023-11-19 04:57:43,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:43" (2/3) ... [2023-11-19 04:57:43,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4615a387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:43, skipping insertion in model container [2023-11-19 04:57:43,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:43" (3/3) ... [2023-11-19 04:57:43,695 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_32_bad.i [2023-11-19 04:57:43,715 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:57:43,716 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 04:57:43,760 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:57:43,768 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5520bda7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:57:43,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 04:57:43,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 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) [2023-11-19 04:57:43,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:57:43,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:43,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:43,783 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 04:57:43,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:43,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2023-11-19 04:57:43,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:57:43,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2052604525] [2023-11-19 04:57:43,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:43,806 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 [2023-11-19 04:57:43,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:57:43,809 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:57:43,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:57:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:44,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:57:44,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:57:44,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:57:44,109 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:57:44,109 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:57:44,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2052604525] [2023-11-19 04:57:44,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2052604525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:44,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:44,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 04:57:44,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49189704] [2023-11-19 04:57:44,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:44,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:57:44,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:57:44,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:57:44,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:57:44,147 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 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) [2023-11-19 04:57:44,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:44,164 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2023-11-19 04:57:44,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:57:44,166 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 [2023-11-19 04:57:44,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:44,173 INFO L225 Difference]: With dead ends: 22 [2023-11-19 04:57:44,173 INFO L226 Difference]: Without dead ends: 14 [2023-11-19 04:57:44,176 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 [2023-11-19 04:57:44,180 INFO L413 NwaCegarLoop]: 24 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, 24 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 [2023-11-19 04:57:44,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:57:44,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-19 04:57:44,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-19 04:57:44,229 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) [2023-11-19 04:57:44,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2023-11-19 04:57:44,232 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2023-11-19 04:57:44,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:44,233 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-11-19 04:57:44,234 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) [2023-11-19 04:57:44,235 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-19 04:57:44,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:57:44,237 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:44,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:44,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/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)] Ended with exit code 0 [2023-11-19 04:57:44,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:57:44,443 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 04:57:44,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:44,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1427713972, now seen corresponding path program 1 times [2023-11-19 04:57:44,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:57:44,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722209279] [2023-11-19 04:57:44,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:44,446 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 [2023-11-19 04:57:44,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:57:44,448 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:57:44,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:57:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:57:44,663 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:57:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:57:44,764 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-19 04:57:44,765 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:57:44,771 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-19 04:57:44,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-19 04:57:44,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:57:44,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:57:44,983 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 04:57:44,987 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:57:45,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:57:45 BoogieIcfgContainer [2023-11-19 04:57:45,020 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:57:45,021 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:57:45,021 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:57:45,021 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:57:45,022 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:43" (3/4) ... [2023-11-19 04:57:45,024 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:57:45,026 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:57:45,027 INFO L158 Benchmark]: Toolchain (without parser) took 3538.40ms. Allocated memory is still 119.5MB. Free memory was 92.1MB in the beginning and 75.4MB in the end (delta: 16.7MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2023-11-19 04:57:45,027 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 79.7MB. Free memory was 55.0MB in the beginning and 54.9MB in the end (delta: 80.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:57:45,028 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1534.57ms. Allocated memory is still 119.5MB. Free memory was 91.8MB in the beginning and 59.6MB in the end (delta: 32.2MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2023-11-19 04:57:45,029 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.88ms. Allocated memory is still 119.5MB. Free memory was 59.6MB in the beginning and 91.3MB in the end (delta: -31.8MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2023-11-19 04:57:45,029 INFO L158 Benchmark]: Boogie Preprocessor took 41.00ms. Allocated memory is still 119.5MB. Free memory was 91.3MB in the beginning and 89.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:57:45,030 INFO L158 Benchmark]: RCFGBuilder took 520.59ms. Allocated memory is still 119.5MB. Free memory was 89.2MB in the beginning and 73.9MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:57:45,031 INFO L158 Benchmark]: TraceAbstraction took 1331.95ms. Allocated memory is still 119.5MB. Free memory was 73.3MB in the beginning and 75.4MB in the end (delta: -2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:57:45,031 INFO L158 Benchmark]: Witness Printer took 5.03ms. Allocated memory is still 119.5MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:57:45,034 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 79.7MB. Free memory was 55.0MB in the beginning and 54.9MB in the end (delta: 80.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1534.57ms. Allocated memory is still 119.5MB. Free memory was 91.8MB in the beginning and 59.6MB in the end (delta: 32.2MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.88ms. Allocated memory is still 119.5MB. Free memory was 59.6MB in the beginning and 91.3MB in the end (delta: -31.8MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.00ms. Allocated memory is still 119.5MB. Free memory was 91.3MB in the beginning and 89.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 520.59ms. Allocated memory is still 119.5MB. Free memory was 89.2MB in the beginning and 73.9MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1331.95ms. Allocated memory is still 119.5MB. Free memory was 73.3MB in the beginning and 75.4MB in the end (delta: -2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.03ms. Allocated memory is still 119.5MB. Free memory is still 75.4MB. 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: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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); VAL [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 [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 [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_preinc_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] EXPR data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556-L1566] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1567] EXPR *dataPtr1 = data [L1554-L1568] { int data = *dataPtr1; { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } *dataPtr1 = data; } [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1572] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, data={-9223372036854775805:0}, dataPtr1={-9223372036854775805:0}, dataPtr2={-9223372036854775805:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1572]: 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, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, 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, 24 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, 24 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=22occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 92 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 [2023-11-19 04:57:45,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e50e97-96d1-4f67-9175-90f2386674ae/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample