./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_10_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire --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 ce1696e81cfe13c51ade229e4f426712ee728cef6dac30b7b39193f0e1923a73 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:10:04,171 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:10:04,274 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-23 21:10:04,282 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:10:04,284 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:10:04,326 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:10:04,327 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:10:04,328 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:10:04,329 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:10:04,334 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:10:04,335 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:10:04,336 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:10:04,336 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:10:04,338 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:10:04,339 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:10:04,339 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:10:04,340 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:10:04,340 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:10:04,341 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:10:04,341 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:10:04,342 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:10:04,342 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:10:04,343 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:10:04,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:10:04,344 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:10:04,344 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:10:04,345 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:10:04,345 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:10:04,346 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:10:04,346 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:10:04,348 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:10:04,348 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:10:04,348 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:10:04,348 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:10:04,349 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:10:04,349 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:10:04,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:04,350 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:10:04,350 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:10:04,350 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:10:04,350 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:10:04,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:10:04,351 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:10:04,351 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:10:04,352 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:10:04,352 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:10:04,353 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_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce1696e81cfe13c51ade229e4f426712ee728cef6dac30b7b39193f0e1923a73 [2023-11-23 21:10:04,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:10:04,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:10:04,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:10:04,768 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:10:04,770 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:10:04,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_10_bad.i [2023-11-23 21:10:07,948 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:10:08,439 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:10:08,440 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_10_bad.i [2023-11-23 21:10:08,475 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/data/42afee9e3/63d2152cc6744059a7f5c645fe2771fa/FLAGb695fe3b6 [2023-11-23 21:10:08,496 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/data/42afee9e3/63d2152cc6744059a7f5c645fe2771fa [2023-11-23 21:10:08,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:10:08,504 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:10:08,507 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:08,507 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:10:08,512 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:10:08,513 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:08" (1/1) ... [2023-11-23 21:10:08,514 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@221d793c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:08, skipping insertion in model container [2023-11-23 21:10:08,514 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:08" (1/1) ... [2023-11-23 21:10:08,579 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:10:08,960 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:10:09,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:09,572 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:10:09,596 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:10:09,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:09,841 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:09,842 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:09,842 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:09,842 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:09,843 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:09,843 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:09,851 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:10:09,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:09 WrapperNode [2023-11-23 21:10:09,852 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:09,854 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:09,854 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:10:09,854 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:10:09,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:09" (1/1) ... [2023-11-23 21:10:09,909 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:09" (1/1) ... [2023-11-23 21:10:09,948 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2023-11-23 21:10:09,949 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:09,950 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:10:09,950 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:10:09,951 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:10:09,962 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:09" (1/1) ... [2023-11-23 21:10:09,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:09" (1/1) ... [2023-11-23 21:10:09,978 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:09" (1/1) ... [2023-11-23 21:10:09,980 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:09" (1/1) ... [2023-11-23 21:10:09,986 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:09" (1/1) ... [2023-11-23 21:10:10,001 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:09" (1/1) ... [2023-11-23 21:10:10,003 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:09" (1/1) ... [2023-11-23 21:10:10,005 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:09" (1/1) ... [2023-11-23 21:10:10,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:10:10,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:10:10,016 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:10:10,017 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:10:10,018 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:09" (1/1) ... [2023-11-23 21:10:10,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:10,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:10:10,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:10:10,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:10:10,116 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 21:10:10,117 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 21:10:10,117 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 21:10:10,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:10:10,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:10:10,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:10:10,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:10:10,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:10:10,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:10:10,118 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 21:10:10,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:10:10,354 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:10:10,357 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:10:10,551 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:10:10,643 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:10:10,643 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:10:10,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:10 BoogieIcfgContainer [2023-11-23 21:10:10,646 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:10:10,650 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:10:10,650 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:10:10,654 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:10:10,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:10:08" (1/3) ... [2023-11-23 21:10:10,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee7e08a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:10, skipping insertion in model container [2023-11-23 21:10:10,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:09" (2/3) ... [2023-11-23 21:10:10,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee7e08a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:10, skipping insertion in model container [2023-11-23 21:10:10,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:10" (3/3) ... [2023-11-23 21:10:10,662 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_10_bad.i [2023-11-23 21:10:10,683 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:10:10,683 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 21:10:10,745 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:10:10,753 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;@18d97291, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:10:10,754 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 21:10:10,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.5) internal successors, (18), 15 states have internal predecessors, (18), 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) [2023-11-23 21:10:10,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 21:10:10,767 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:10,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:10,769 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-23 21:10:10,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:10,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1681914558, now seen corresponding path program 1 times [2023-11-23 21:10:10,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:10:10,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664000146] [2023-11-23 21:10:10,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:10,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:10:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:11,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:10:11,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:10:11,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664000146] [2023-11-23 21:10:11,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664000146] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:11,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:11,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:10:11,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930195173] [2023-11-23 21:10:11,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:11,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:10:11,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:10:11,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:10:11,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:10:11,187 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.5) internal successors, (18), 15 states have internal predecessors, (18), 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 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-23 21:10:11,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:11,249 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2023-11-23 21:10:11,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:10:11,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 9 [2023-11-23 21:10:11,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:11,259 INFO L225 Difference]: With dead ends: 31 [2023-11-23 21:10:11,259 INFO L226 Difference]: Without dead ends: 15 [2023-11-23 21:10:11,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:10:11,268 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:11,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 16 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:10:11,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-23 21:10:11,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-23 21:10:11,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.2) internal successors, (12), 12 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) [2023-11-23 21:10:11,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2023-11-23 21:10:11,313 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 9 [2023-11-23 21:10:11,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:11,314 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2023-11-23 21:10:11,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-23 21:10:11,315 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2023-11-23 21:10:11,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 21:10:11,318 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:11,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:11,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:10:11,319 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-23 21:10:11,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:11,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1708908121, now seen corresponding path program 1 times [2023-11-23 21:10:11,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:10:11,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235881732] [2023-11-23 21:10:11,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:11,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:10:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:11,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:10:11,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:10:11,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235881732] [2023-11-23 21:10:11,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235881732] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:11,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:11,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:10:11,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266462040] [2023-11-23 21:10:11,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:11,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:10:11,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:10:11,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:10:11,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:10:11,484 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2023-11-23 21:10:11,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:11,502 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2023-11-23 21:10:11,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:10:11,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 [2023-11-23 21:10:11,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:11,504 INFO L225 Difference]: With dead ends: 15 [2023-11-23 21:10:11,504 INFO L226 Difference]: Without dead ends: 14 [2023-11-23 21:10:11,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:10:11,507 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:11,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 19 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:10:11,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-23 21:10:11,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-23 21:10:11,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:10:11,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2023-11-23 21:10:11,513 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2023-11-23 21:10:11,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:11,514 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2023-11-23 21:10:11,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2023-11-23 21:10:11,515 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-23 21:10:11,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 21:10:11,516 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:11,516 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:11,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:10:11,517 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-23 21:10:11,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:11,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1436544133, now seen corresponding path program 1 times [2023-11-23 21:10:11,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:10:11,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753240101] [2023-11-23 21:10:11,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:11,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:10:11,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:10:11,563 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:10:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:10:11,616 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:10:11,616 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:10:11,618 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-23 21:10:11,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-23 21:10:11,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:10:11,625 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-23 21:10:11,629 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:10:11,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:10:11 BoogieIcfgContainer [2023-11-23 21:10:11,658 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:10:11,659 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:10:11,659 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:10:11,660 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:10:11,660 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:10" (3/4) ... [2023-11-23 21:10:11,663 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:10:11,664 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:10:11,665 INFO L158 Benchmark]: Toolchain (without parser) took 3160.98ms. Allocated memory is still 151.0MB. Free memory was 120.6MB in the beginning and 78.5MB in the end (delta: 42.1MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2023-11-23 21:10:11,665 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:10:11,666 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1345.90ms. Allocated memory is still 151.0MB. Free memory was 120.6MB in the beginning and 56.9MB in the end (delta: 63.7MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2023-11-23 21:10:11,666 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.44ms. Allocated memory is still 151.0MB. Free memory was 56.9MB in the beginning and 54.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:10:11,667 INFO L158 Benchmark]: Boogie Preprocessor took 65.94ms. Allocated memory is still 151.0MB. Free memory was 54.2MB in the beginning and 52.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:10:11,667 INFO L158 Benchmark]: RCFGBuilder took 630.31ms. Allocated memory is still 151.0MB. Free memory was 52.8MB in the beginning and 120.5MB in the end (delta: -67.6MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2023-11-23 21:10:11,668 INFO L158 Benchmark]: TraceAbstraction took 1008.97ms. Allocated memory is still 151.0MB. Free memory was 119.5MB in the beginning and 78.5MB in the end (delta: 41.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-23 21:10:11,668 INFO L158 Benchmark]: Witness Printer took 4.71ms. Allocated memory is still 151.0MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:10:11,671 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1345.90ms. Allocated memory is still 151.0MB. Free memory was 120.6MB in the beginning and 56.9MB in the end (delta: 63.7MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.44ms. Allocated memory is still 151.0MB. Free memory was 56.9MB in the beginning and 54.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.94ms. Allocated memory is still 151.0MB. Free memory was 54.2MB in the beginning and 52.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 630.31ms. Allocated memory is still 151.0MB. Free memory was 52.8MB in the beginning and 120.5MB in the end (delta: -67.6MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1008.97ms. Allocated memory is still 151.0MB. Free memory was 119.5MB in the beginning and 78.5MB in the end (delta: 41.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 4.71ms. Allocated memory is still 151.0MB. Free memory is still 78.5MB. 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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); [L1578] 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) [L1578] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741825, argc=1073741825, argv={1073741827:1073741826}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE190_Integer_Overflow__int_fgets_multiply_10_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE \read(globalTrue) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE \read(globalTrue) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] COND TRUE data > 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1570]: 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, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 27 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2023-11-23 21:10:11,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/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_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire --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 ce1696e81cfe13c51ade229e4f426712ee728cef6dac30b7b39193f0e1923a73 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:10:14,434 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:10:14,546 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-23 21:10:14,557 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:10:14,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:10:14,610 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:10:14,611 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:10:14,612 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:10:14,613 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:10:14,618 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:10:14,618 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:10:14,619 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:10:14,619 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:10:14,621 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:10:14,621 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:10:14,622 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:10:14,623 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:10:14,624 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:10:14,624 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:10:14,624 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:10:14,625 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:10:14,625 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:10:14,626 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:10:14,626 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:10:14,627 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:10:14,627 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:10:14,628 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:10:14,628 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:10:14,629 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:10:14,629 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:10:14,629 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:10:14,630 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:10:14,631 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:10:14,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:14,631 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:10:14,632 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:10:14,632 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:10:14,632 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:10:14,633 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:10:14,634 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:10:14,634 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:10:14,634 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:10:14,635 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:10:14,635 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_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce1696e81cfe13c51ade229e4f426712ee728cef6dac30b7b39193f0e1923a73 [2023-11-23 21:10:15,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:10:15,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:10:15,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:10:15,115 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:10:15,115 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:10:15,117 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_10_bad.i [2023-11-23 21:10:18,215 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:10:18,707 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:10:18,711 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_10_bad.i [2023-11-23 21:10:18,736 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/data/6b1ae5f21/7acbb1fe80f749db9013bde7a5aff3c1/FLAG4122cb582 [2023-11-23 21:10:18,753 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/data/6b1ae5f21/7acbb1fe80f749db9013bde7a5aff3c1 [2023-11-23 21:10:18,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:10:18,762 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:10:18,767 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:18,767 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:10:18,773 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:10:18,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:18" (1/1) ... [2023-11-23 21:10:18,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c2be13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:18, skipping insertion in model container [2023-11-23 21:10:18,776 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:18" (1/1) ... [2023-11-23 21:10:18,867 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:10:19,370 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:10:20,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:20,175 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:10:20,197 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:10:20,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:20,439 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:20,440 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:20,440 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:20,440 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:20,440 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:20,441 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:20,453 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:10:20,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20 WrapperNode [2023-11-23 21:10:20,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:20,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:20,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:10:20,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:10:20,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ... [2023-11-23 21:10:20,501 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ... [2023-11-23 21:10:20,527 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2023-11-23 21:10:20,528 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:20,529 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:10:20,529 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:10:20,529 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:10:20,539 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ... [2023-11-23 21:10:20,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ... [2023-11-23 21:10:20,543 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ... [2023-11-23 21:10:20,544 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ... [2023-11-23 21:10:20,553 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ... [2023-11-23 21:10:20,555 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ... [2023-11-23 21:10:20,559 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ... [2023-11-23 21:10:20,561 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ... [2023-11-23 21:10:20,566 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:10:20,567 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:10:20,567 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:10:20,567 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:10:20,568 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ... [2023-11-23 21:10:20,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:20,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:10:20,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:10:20,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:10:20,670 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 21:10:20,670 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 21:10:20,670 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 21:10:20,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:10:20,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:10:20,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:10:20,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:10:20,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:10:20,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:10:20,672 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 21:10:20,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-23 21:10:20,866 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:10:20,869 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:10:21,076 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:10:21,141 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:10:21,141 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:10:21,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:21 BoogieIcfgContainer [2023-11-23 21:10:21,153 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:10:21,156 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:10:21,157 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:10:21,161 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:10:21,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:10:18" (1/3) ... [2023-11-23 21:10:21,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743e7300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:21, skipping insertion in model container [2023-11-23 21:10:21,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (2/3) ... [2023-11-23 21:10:21,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743e7300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:21, skipping insertion in model container [2023-11-23 21:10:21,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:21" (3/3) ... [2023-11-23 21:10:21,164 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_10_bad.i [2023-11-23 21:10:21,183 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:10:21,183 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 21:10:21,249 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:10:21,257 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;@458007af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:10:21,257 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 21:10:21,262 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.5) internal successors, (21), 17 states have internal predecessors, (21), 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) [2023-11-23 21:10:21,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 21:10:21,273 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:21,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:21,274 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-23 21:10:21,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:21,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1904458791, now seen corresponding path program 1 times [2023-11-23 21:10:21,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:10:21,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428069293] [2023-11-23 21:10:21,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:21,301 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 [2023-11-23 21:10:21,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:10:21,307 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:10:21,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:10:21,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:21,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:10:21,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:21,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:10:21,521 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:10:21,522 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:10:21,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428069293] [2023-11-23 21:10:21,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428069293] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:21,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:21,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:10:21,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343165920] [2023-11-23 21:10:21,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:21,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:10:21,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:10:21,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:10:21,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:10:21,570 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.5) internal successors, (21), 17 states have internal predecessors, (21), 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 3 states, 3 states have (on average 3.0) 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) [2023-11-23 21:10:21,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:21,617 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2023-11-23 21:10:21,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:10:21,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) 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 [2023-11-23 21:10:21,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:21,628 INFO L225 Difference]: With dead ends: 35 [2023-11-23 21:10:21,628 INFO L226 Difference]: Without dead ends: 17 [2023-11-23 21:10:21,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:10:21,635 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:21,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 20 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:10:21,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-23 21:10:21,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-23 21:10:21,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 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) [2023-11-23 21:10:21,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2023-11-23 21:10:21,676 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2023-11-23 21:10:21,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:21,678 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2023-11-23 21:10:21,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) 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) [2023-11-23 21:10:21,680 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2023-11-23 21:10:21,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 21:10:21,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:21,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:21,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:10:21,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:10:21,886 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-23 21:10:21,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:21,887 INFO L85 PathProgramCache]: Analyzing trace with hash 232108876, now seen corresponding path program 1 times [2023-11-23 21:10:21,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:10:21,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330371857] [2023-11-23 21:10:21,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:21,888 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 [2023-11-23 21:10:21,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:10:21,889 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:10:21,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:10:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:21,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:10:21,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:10:21,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:10:21,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:10:21,992 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:10:21,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330371857] [2023-11-23 21:10:21,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330371857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:21,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:21,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:10:21,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605509026] [2023-11-23 21:10:21,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:21,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:10:21,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:10:21,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:10:21,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:10:21,996 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-23 21:10:22,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:22,015 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2023-11-23 21:10:22,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:10:22,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 13 [2023-11-23 21:10:22,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:22,016 INFO L225 Difference]: With dead ends: 17 [2023-11-23 21:10:22,016 INFO L226 Difference]: Without dead ends: 16 [2023-11-23 21:10:22,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:10:22,018 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 2 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:22,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 27 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:10:22,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-23 21:10:22,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-23 21:10:22,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:10:22,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2023-11-23 21:10:22,024 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 13 [2023-11-23 21:10:22,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:22,024 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2023-11-23 21:10:22,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-23 21:10:22,025 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-11-23 21:10:22,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 21:10:22,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:22,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:22,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:10:22,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:10:22,229 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-23 21:10:22,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:22,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1394559370, now seen corresponding path program 1 times [2023-11-23 21:10:22,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:10:22,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [525539862] [2023-11-23 21:10:22,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:22,231 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 [2023-11-23 21:10:22,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:10:22,232 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:10:22,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/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 (4)] Waiting until timeout for monitored process [2023-11-23 21:10:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:10:22,348 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:10:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:10:22,429 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-23 21:10:22,430 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:10:22,431 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-23 21:10:22,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-23 21:10:22,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/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 (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:10:22,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:10:22,640 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-23 21:10:22,643 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:10:22,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:10:22 BoogieIcfgContainer [2023-11-23 21:10:22,677 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:10:22,678 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:10:22,678 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:10:22,678 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:10:22,678 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:21" (3/4) ... [2023-11-23 21:10:22,680 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:10:22,681 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:10:22,682 INFO L158 Benchmark]: Toolchain (without parser) took 3920.50ms. Allocated memory is still 121.6MB. Free memory was 93.8MB in the beginning and 49.1MB in the end (delta: 44.7MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2023-11-23 21:10:22,683 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 60.8MB. Free memory was 37.3MB in the beginning and 37.2MB in the end (delta: 71.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:10:22,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1687.95ms. Allocated memory is still 121.6MB. Free memory was 93.5MB in the beginning and 61.2MB in the end (delta: 32.3MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2023-11-23 21:10:22,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.31ms. Allocated memory is still 121.6MB. Free memory was 61.2MB in the beginning and 58.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:10:22,684 INFO L158 Benchmark]: Boogie Preprocessor took 37.31ms. Allocated memory is still 121.6MB. Free memory was 58.5MB in the beginning and 56.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:10:22,685 INFO L158 Benchmark]: RCFGBuilder took 587.14ms. Allocated memory is still 121.6MB. Free memory was 56.4MB in the beginning and 92.2MB in the end (delta: -35.8MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2023-11-23 21:10:22,685 INFO L158 Benchmark]: TraceAbstraction took 1521.23ms. Allocated memory is still 121.6MB. Free memory was 91.0MB in the beginning and 49.9MB in the end (delta: 41.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-23 21:10:22,686 INFO L158 Benchmark]: Witness Printer took 3.84ms. Allocated memory is still 121.6MB. Free memory was 49.9MB in the beginning and 49.1MB in the end (delta: 826.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:10:22,688 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 60.8MB. Free memory was 37.3MB in the beginning and 37.2MB in the end (delta: 71.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1687.95ms. Allocated memory is still 121.6MB. Free memory was 93.5MB in the beginning and 61.2MB in the end (delta: 32.3MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.31ms. Allocated memory is still 121.6MB. Free memory was 61.2MB in the beginning and 58.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.31ms. Allocated memory is still 121.6MB. Free memory was 58.5MB in the beginning and 56.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 587.14ms. Allocated memory is still 121.6MB. Free memory was 56.4MB in the beginning and 92.2MB in the end (delta: -35.8MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1521.23ms. Allocated memory is still 121.6MB. Free memory was 91.0MB in the beginning and 49.9MB in the end (delta: 41.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 3.84ms. Allocated memory is still 121.6MB. Free memory was 49.9MB in the beginning and 49.1MB in the end (delta: 826.2kB). Peak memory consumption was 2.1MB. 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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); [L1578] 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) [L1578] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE190_Integer_Overflow__int_fgets_multiply_10_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE \read(globalTrue) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE \read(globalTrue) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] COND TRUE data > 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1570]: 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, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 35 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 SizeOfPredicates, 0 NumberOfNonLiveVariables, 109 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2023-11-23 21:10:22,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23a095d4-dae0-43e2-a34c-d890ef23ec86/bin/utaipan-verify-mE87zJ7Ire/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