./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_51_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fcef6dc9969520864ff3eb237f503bd49786ed83e05593d88361b4eab4a4eb5b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:45:42,033 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:45:42,125 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-19 04:45:42,131 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:45:42,131 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:45:42,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:45:42,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:45:42,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:45:42,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:45:42,163 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:45:42,163 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:45:42,164 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:45:42,164 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:45:42,165 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:45:42,166 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:45:42,166 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:45:42,167 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:45:42,167 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:45:42,168 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:45:42,168 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:45:42,169 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:45:42,170 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:45:42,171 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:45:42,171 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:45:42,172 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:45:42,172 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:45:42,173 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:45:42,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:45:42,174 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:45:42,174 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:45:42,175 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:45:42,175 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:45:42,176 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:45:42,176 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:45:42,176 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:45:42,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:45:42,177 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:45:42,177 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:45:42,178 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:45:42,178 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:45:42,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:45:42,179 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:45:42,179 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:45:42,179 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:45:42,185 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_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcef6dc9969520864ff3eb237f503bd49786ed83e05593d88361b4eab4a4eb5b [2023-11-19 04:45:42,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:45:42,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:45:42,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:45:42,519 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:45:42,519 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:45:42,521 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_51_bad.i [2023-11-19 04:45:45,659 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:45:46,073 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:45:46,075 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_51_bad.i [2023-11-19 04:45:46,098 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/data/f681014e1/ff3190d4da6445eea34babbd09713f12/FLAGbe8fd9b69 [2023-11-19 04:45:46,114 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/data/f681014e1/ff3190d4da6445eea34babbd09713f12 [2023-11-19 04:45:46,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:45:46,119 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:45:46,121 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:45:46,121 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:45:46,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:45:46,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:45:46" (1/1) ... [2023-11-19 04:45:46,128 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26ffb31a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:46, skipping insertion in model container [2023-11-19 04:45:46,128 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:45:46" (1/1) ... [2023-11-19 04:45:46,190 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:45:46,555 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:45:47,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:45:47,132 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:45:47,153 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:45:47,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:45:47,346 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:45:47,347 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:45:47,347 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:45:47,347 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:45:47,348 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:45:47,348 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:45:47,356 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:45:47,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:47 WrapperNode [2023-11-19 04:45:47,357 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:45:47,358 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:45:47,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:45:47,359 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:45:47,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:47" (1/1) ... [2023-11-19 04:45:47,403 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:47" (1/1) ... [2023-11-19 04:45:47,429 INFO L138 Inliner]: procedures = 501, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2023-11-19 04:45:47,430 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:45:47,431 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:45:47,431 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:45:47,431 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:45:47,441 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:47" (1/1) ... [2023-11-19 04:45:47,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:47" (1/1) ... [2023-11-19 04:45:47,445 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:47" (1/1) ... [2023-11-19 04:45:47,445 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:47" (1/1) ... [2023-11-19 04:45:47,452 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:47" (1/1) ... [2023-11-19 04:45:47,454 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:47" (1/1) ... [2023-11-19 04:45:47,456 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:47" (1/1) ... [2023-11-19 04:45:47,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:47" (1/1) ... [2023-11-19 04:45:47,470 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:45:47,471 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:45:47,471 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:45:47,472 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:45:47,473 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:47" (1/1) ... [2023-11-19 04:45:47,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:45:47,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:45:47,506 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:45:47,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:45:47,543 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 04:45:47,543 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 04:45:47,543 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 04:45:47,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:45:47,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:45:47,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:45:47,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:45:47,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:45:47,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:45:47,544 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 04:45:47,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:45:47,693 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:45:47,695 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:45:47,820 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:45:47,859 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:45:47,859 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:45:47,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:45:47 BoogieIcfgContainer [2023-11-19 04:45:47,864 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:45:47,868 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:45:47,871 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:45:47,875 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:45:47,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:45:46" (1/3) ... [2023-11-19 04:45:47,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f175b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:45:47, skipping insertion in model container [2023-11-19 04:45:47,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:47" (2/3) ... [2023-11-19 04:45:47,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f175b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:45:47, skipping insertion in model container [2023-11-19 04:45:47,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:45:47" (3/3) ... [2023-11-19 04:45:47,881 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_51_bad.i [2023-11-19 04:45:47,897 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:45:47,898 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 04:45:47,944 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:45:47,951 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;@18e4a314, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:45:47,951 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 04:45:47,955 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 04:45:47,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:45:47,963 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:45:47,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:45:47,964 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 04:45:47,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:45:47,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1634006193, now seen corresponding path program 1 times [2023-11-19 04:45:47,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:45:47,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591373967] [2023-11-19 04:45:47,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:45:47,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:45:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:45:48,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:45:48,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:45:48,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591373967] [2023-11-19 04:45:48,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591373967] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:45:48,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:45:48,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:45:48,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364935321] [2023-11-19 04:45:48,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:45:48,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:45:48,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:45:48,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:45:48,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:45:48,534 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:45:48,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:45:48,593 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2023-11-19 04:45:48,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:45:48,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2023-11-19 04:45:48,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:45:48,603 INFO L225 Difference]: With dead ends: 15 [2023-11-19 04:45:48,603 INFO L226 Difference]: Without dead ends: 11 [2023-11-19 04:45:48,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:45:48,610 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:45:48,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 23 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:45:48,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-11-19 04:45:48,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-19 04:45:48,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 04:45:48,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2023-11-19 04:45:48,645 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2023-11-19 04:45:48,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:45:48,647 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-11-19 04:45:48,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:45:48,647 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-11-19 04:45:48,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:45:48,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:45:48,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:45:48,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:45:48,649 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 04:45:48,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:45:48,650 INFO L85 PathProgramCache]: Analyzing trace with hash 885415623, now seen corresponding path program 1 times [2023-11-19 04:45:48,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:45:48,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281981383] [2023-11-19 04:45:48,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:45:48,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:45:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:45:48,707 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:45:48,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:45:48,767 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:45:48,768 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:45:48,770 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-19 04:45:48,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-19 04:45:48,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:45:48,777 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 04:45:48,784 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:45:48,811 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post101 could not be translated [2023-11-19 04:45:48,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:45:48 BoogieIcfgContainer [2023-11-19 04:45:48,822 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:45:48,823 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:45:48,823 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:45:48,823 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:45:48,824 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:45:47" (3/4) ... [2023-11-19 04:45:48,826 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:45:48,827 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:45:48,828 INFO L158 Benchmark]: Toolchain (without parser) took 2709.13ms. Allocated memory was 117.4MB in the beginning and 172.0MB in the end (delta: 54.5MB). Free memory was 63.6MB in the beginning and 103.7MB in the end (delta: -40.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:45:48,829 INFO L158 Benchmark]: CDTParser took 1.21ms. Allocated memory is still 117.4MB. Free memory is still 70.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:45:48,829 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1236.96ms. Allocated memory was 117.4MB in the beginning and 172.0MB in the end (delta: 54.5MB). Free memory was 63.4MB in the beginning and 97.5MB in the end (delta: -34.1MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2023-11-19 04:45:48,830 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.83ms. Allocated memory is still 172.0MB. Free memory was 97.5MB in the beginning and 95.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:45:48,830 INFO L158 Benchmark]: Boogie Preprocessor took 39.95ms. Allocated memory is still 172.0MB. Free memory was 95.1MB in the beginning and 93.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:45:48,831 INFO L158 Benchmark]: RCFGBuilder took 393.06ms. Allocated memory is still 172.0MB. Free memory was 93.3MB in the beginning and 78.7MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:45:48,832 INFO L158 Benchmark]: TraceAbstraction took 954.51ms. Allocated memory is still 172.0MB. Free memory was 77.5MB in the beginning and 103.7MB in the end (delta: -26.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:45:48,832 INFO L158 Benchmark]: Witness Printer took 4.35ms. Allocated memory is still 172.0MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:45:48,835 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.21ms. Allocated memory is still 117.4MB. Free memory is still 70.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1236.96ms. Allocated memory was 117.4MB in the beginning and 172.0MB in the end (delta: 54.5MB). Free memory was 63.4MB in the beginning and 97.5MB in the end (delta: -34.1MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.83ms. Allocated memory is still 172.0MB. Free memory was 97.5MB in the beginning and 95.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.95ms. Allocated memory is still 172.0MB. Free memory was 95.1MB in the beginning and 93.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 393.06ms. Allocated memory is still 172.0MB. Free memory was 93.3MB in the beginning and 78.7MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 954.51ms. Allocated memory is still 172.0MB. Free memory was 77.5MB in the beginning and 103.7MB in the end (delta: -26.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.35ms. Allocated memory is still 172.0MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post101 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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); [L1569] 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) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=2147483648, argc=2147483648, argv={2147483652:2147483650}, argv={2147483652:2147483650}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_postinc_51_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] EXPR data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1553-L1563] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1564] CALL CWE190_Integer_Overflow__int_fgets_postinc_51b_badSink(data) [L1577] data++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=2147483647, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 9 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:45:48,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fcef6dc9969520864ff3eb237f503bd49786ed83e05593d88361b4eab4a4eb5b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:45:51,560 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:45:51,694 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-19 04:45:51,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:45:51,704 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:45:51,749 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:45:51,750 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:45:51,750 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:45:51,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:45:51,756 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:45:51,757 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:45:51,757 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:45:51,758 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:45:51,759 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:45:51,760 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:45:51,760 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:45:51,761 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:45:51,762 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:45:51,762 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:45:51,763 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:45:51,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:45:51,764 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:45:51,765 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:45:51,765 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:45:51,766 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:45:51,766 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:45:51,766 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:45:51,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:45:51,767 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:45:51,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:45:51,769 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:45:51,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:45:51,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:45:51,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:45:51,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:45:51,770 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:45:51,771 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:45:51,771 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:45:51,771 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:45:51,772 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:45:51,772 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:45:51,773 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_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcef6dc9969520864ff3eb237f503bd49786ed83e05593d88361b4eab4a4eb5b [2023-11-19 04:45:52,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:45:52,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:45:52,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:45:52,226 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:45:52,226 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:45:52,228 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_51_bad.i [2023-11-19 04:45:55,571 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:45:55,968 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:45:55,970 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_51_bad.i [2023-11-19 04:45:56,000 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/data/25f3b89d1/7572b5f65c854855a370eb2fa5eb2f26/FLAGd4a74be77 [2023-11-19 04:45:56,037 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/data/25f3b89d1/7572b5f65c854855a370eb2fa5eb2f26 [2023-11-19 04:45:56,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:45:56,042 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:45:56,043 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:45:56,043 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:45:56,049 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:45:56,049 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:45:56" (1/1) ... [2023-11-19 04:45:56,050 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d022b75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:56, skipping insertion in model container [2023-11-19 04:45:56,051 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:45:56" (1/1) ... [2023-11-19 04:45:56,124 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:45:56,542 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:45:57,297 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:45:57,319 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:45:57,349 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:45:57,471 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:45:57,620 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:45:57,620 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:45:57,620 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:45:57,620 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:45:57,621 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:45:57,621 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:45:57,628 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:45:57,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:57 WrapperNode [2023-11-19 04:45:57,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:45:57,630 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:45:57,630 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:45:57,630 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:45:57,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:57" (1/1) ... [2023-11-19 04:45:57,669 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:57" (1/1) ... [2023-11-19 04:45:57,700 INFO L138 Inliner]: procedures = 506, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2023-11-19 04:45:57,700 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:45:57,701 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:45:57,701 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:45:57,702 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:45:57,711 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:57" (1/1) ... [2023-11-19 04:45:57,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:57" (1/1) ... [2023-11-19 04:45:57,717 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:57" (1/1) ... [2023-11-19 04:45:57,717 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:57" (1/1) ... [2023-11-19 04:45:57,733 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:57" (1/1) ... [2023-11-19 04:45:57,738 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:57" (1/1) ... [2023-11-19 04:45:57,749 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:57" (1/1) ... [2023-11-19 04:45:57,751 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:57" (1/1) ... [2023-11-19 04:45:57,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:45:57,769 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:45:57,769 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:45:57,769 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:45:57,770 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:57" (1/1) ... [2023-11-19 04:45:57,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:45:57,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:45:57,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:45:57,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:45:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 04:45:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 04:45:57,883 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 04:45:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:45:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:45:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:45:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:45:57,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:45:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:45:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 04:45:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-19 04:45:58,047 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:45:58,049 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:45:58,188 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:45:58,195 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:45:58,195 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:45:58,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:45:58 BoogieIcfgContainer [2023-11-19 04:45:58,199 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:45:58,201 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:45:58,201 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:45:58,205 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:45:58,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:45:56" (1/3) ... [2023-11-19 04:45:58,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65748fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:45:58, skipping insertion in model container [2023-11-19 04:45:58,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:45:57" (2/3) ... [2023-11-19 04:45:58,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65748fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:45:58, skipping insertion in model container [2023-11-19 04:45:58,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:45:58" (3/3) ... [2023-11-19 04:45:58,208 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_51_bad.i [2023-11-19 04:45:58,227 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:45:58,227 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 04:45:58,275 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:45:58,282 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;@723caf81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:45:58,282 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 04:45:58,286 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 04:45:58,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:45:58,294 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:45:58,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:45:58,296 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 04:45:58,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:45:58,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2023-11-19 04:45:58,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:45:58,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205940065] [2023-11-19 04:45:58,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:45:58,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:45:58,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:45:58,324 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:45:58,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:45:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:45:58,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:45:58,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:45:58,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:45:58,514 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:45:58,514 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:45:58,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205940065] [2023-11-19 04:45:58,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1205940065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:45:58,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:45:58,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 04:45:58,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974472741] [2023-11-19 04:45:58,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:45:58,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:45:58,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:45:58,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:45:58,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:45:58,553 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:45:58,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:45:58,569 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2023-11-19 04:45:58,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:45:58,571 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-11-19 04:45:58,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:45:58,578 INFO L225 Difference]: With dead ends: 23 [2023-11-19 04:45:58,579 INFO L226 Difference]: Without dead ends: 14 [2023-11-19 04:45:58,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:45:58,586 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:45:58,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:45:58,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-19 04:45:58,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-19 04:45:58,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 04:45:58,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2023-11-19 04:45:58,664 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2023-11-19 04:45:58,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:45:58,665 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-11-19 04:45:58,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:45:58,666 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-19 04:45:58,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:45:58,669 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:45:58,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:45:58,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:45:58,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:45:58,873 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 04:45:58,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:45:58,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2023-11-19 04:45:58,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:45:58,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674430551] [2023-11-19 04:45:58,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:45:58,875 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:45:58,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:45:58,896 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:45:58,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 04:45:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:45:59,040 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:45:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:45:59,120 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-19 04:45:59,122 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:45:59,127 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-19 04:45:59,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-19 04:45:59,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 04:45:59,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:45:59,334 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 04:45:59,338 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:45:59,371 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post99 could not be translated [2023-11-19 04:45:59,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:45:59 BoogieIcfgContainer [2023-11-19 04:45:59,383 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:45:59,384 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:45:59,385 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:45:59,385 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:45:59,385 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:45:58" (3/4) ... [2023-11-19 04:45:59,387 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:45:59,388 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:45:59,390 INFO L158 Benchmark]: Toolchain (without parser) took 3347.77ms. Allocated memory is still 113.2MB. Free memory was 92.4MB in the beginning and 72.3MB in the end (delta: 20.0MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2023-11-19 04:45:59,394 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 69.2MB. Free memory was 45.4MB in the beginning and 45.3MB in the end (delta: 98.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:45:59,395 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1586.17ms. Allocated memory is still 113.2MB. Free memory was 92.0MB in the beginning and 56.0MB in the end (delta: 36.0MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2023-11-19 04:45:59,398 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.02ms. Allocated memory is still 113.2MB. Free memory was 56.0MB in the beginning and 53.3MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:45:59,398 INFO L158 Benchmark]: Boogie Preprocessor took 55.95ms. Allocated memory is still 113.2MB. Free memory was 53.3MB in the beginning and 51.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:45:59,399 INFO L158 Benchmark]: RCFGBuilder took 430.31ms. Allocated memory is still 113.2MB. Free memory was 51.3MB in the beginning and 73.2MB in the end (delta: -22.0MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2023-11-19 04:45:59,399 INFO L158 Benchmark]: TraceAbstraction took 1182.48ms. Allocated memory is still 113.2MB. Free memory was 72.6MB in the beginning and 73.0MB in the end (delta: -435.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:45:59,400 INFO L158 Benchmark]: Witness Printer took 4.16ms. Allocated memory is still 113.2MB. Free memory was 73.0MB in the beginning and 72.3MB in the end (delta: 676.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:45:59,407 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 69.2MB. Free memory was 45.4MB in the beginning and 45.3MB in the end (delta: 98.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1586.17ms. Allocated memory is still 113.2MB. Free memory was 92.0MB in the beginning and 56.0MB in the end (delta: 36.0MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.02ms. Allocated memory is still 113.2MB. Free memory was 56.0MB in the beginning and 53.3MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.95ms. Allocated memory is still 113.2MB. Free memory was 53.3MB in the beginning and 51.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 430.31ms. Allocated memory is still 113.2MB. Free memory was 51.3MB in the beginning and 73.2MB in the end (delta: -22.0MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1182.48ms. Allocated memory is still 113.2MB. Free memory was 72.6MB in the beginning and 73.0MB in the end (delta: -435.3kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.16ms. Allocated memory is still 113.2MB. Free memory was 73.0MB in the beginning and 72.3MB in the end (delta: 676.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post99 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] 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) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_postinc_51_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] EXPR data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1553-L1563] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1564] CALL CWE190_Integer_Overflow__int_fgets_postinc_51b_badSink(data) [L1577] data++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=2147483647, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 67 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:45:59,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159d347b-0905-4418-a411-0a4bd5d2246a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample