./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_03_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_03_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91 --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 6543db5d30f08824d9246bc55c721a6a0069742fa30ebaba77edc99892d3bbc9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:04:12,283 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:04:12,355 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-25 00:04:12,360 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:04:12,361 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:04:12,389 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:04:12,390 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:04:12,391 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:04:12,391 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:04:12,392 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:04:12,392 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:04:12,393 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:04:12,393 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:04:12,394 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:04:12,394 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:04:12,395 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:04:12,395 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:04:12,396 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:04:12,396 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:04:12,397 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:04:12,397 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:04:12,398 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:04:12,399 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:04:12,399 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:04:12,400 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:04:12,400 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:04:12,400 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:04:12,401 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:04:12,401 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:04:12,401 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-25 00:04:12,402 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:04:12,402 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:04:12,402 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:04:12,403 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:04:12,403 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:04:12,403 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:04:12,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:04:12,404 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:04:12,404 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:04:12,404 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:04:12,404 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:04:12,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:04:12,405 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:04:12,405 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:04:12,405 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:04:12,405 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:04:12,406 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_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6543db5d30f08824d9246bc55c721a6a0069742fa30ebaba77edc99892d3bbc9 [2023-11-25 00:04:12,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:04:12,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:04:12,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:04:12,691 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:04:12,692 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:04:12,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_03_bad.i [2023-11-25 00:04:15,899 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:04:16,408 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:04:16,409 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_03_bad.i [2023-11-25 00:04:16,450 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/data/4a55299a8/dee4cf2d2b984f8b959a77c7b9e757eb/FLAG7d7f26f89 [2023-11-25 00:04:16,468 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/data/4a55299a8/dee4cf2d2b984f8b959a77c7b9e757eb [2023-11-25 00:04:16,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:04:16,477 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:04:16,481 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:04:16,481 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:04:16,487 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:04:16,491 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:04:16" (1/1) ... [2023-11-25 00:04:16,492 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@374ec19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:16, skipping insertion in model container [2023-11-25 00:04:16,493 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:04:16" (1/1) ... [2023-11-25 00:04:16,572 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:04:17,691 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:04:17,708 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:04:17,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:04:17,945 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:04:17,945 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:04:17,945 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:04:17,946 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:04:17,946 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:04:17,954 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:04:17,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:17 WrapperNode [2023-11-25 00:04:17,955 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:04:17,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:04:17,956 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:04:17,956 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:04:17,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:17" (1/1) ... [2023-11-25 00:04:17,995 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:17" (1/1) ... [2023-11-25 00:04:18,022 INFO L138 Inliner]: procedures = 499, calls = 63, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2023-11-25 00:04:18,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:04:18,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:04:18,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:04:18,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:04:18,030 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:17" (1/1) ... [2023-11-25 00:04:18,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:17" (1/1) ... [2023-11-25 00:04:18,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:17" (1/1) ... [2023-11-25 00:04:18,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:17" (1/1) ... [2023-11-25 00:04:18,040 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:17" (1/1) ... [2023-11-25 00:04:18,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:17" (1/1) ... [2023-11-25 00:04:18,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:17" (1/1) ... [2023-11-25 00:04:18,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:17" (1/1) ... [2023-11-25 00:04:18,050 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:04:18,051 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:04:18,051 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:04:18,051 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:04:18,052 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:17" (1/1) ... [2023-11-25 00:04:18,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:04:18,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:04:18,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:04:18,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:04:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-25 00:04:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-25 00:04:18,139 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-25 00:04:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:04:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-25 00:04:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:04:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:04:18,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:04:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:04:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-25 00:04:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:04:18,298 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:04:18,300 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:04:18,430 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:04:18,514 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:04:18,514 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-25 00:04:18,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:04:18 BoogieIcfgContainer [2023-11-25 00:04:18,516 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:04:18,518 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:04:18,518 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:04:18,521 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:04:18,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:04:16" (1/3) ... [2023-11-25 00:04:18,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ea8140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:04:18, skipping insertion in model container [2023-11-25 00:04:18,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:17" (2/3) ... [2023-11-25 00:04:18,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ea8140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:04:18, skipping insertion in model container [2023-11-25 00:04:18,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:04:18" (3/3) ... [2023-11-25 00:04:18,524 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_03_bad.i [2023-11-25 00:04:18,541 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:04:18,541 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-25 00:04:18,588 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:04:18,595 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;@34f9ac71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:04:18,595 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-25 00:04:18,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 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) [2023-11-25 00:04:18,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-25 00:04:18,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:04:18,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:04:18,608 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-25 00:04:18,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:04:18,614 INFO L85 PathProgramCache]: Analyzing trace with hash -53043874, now seen corresponding path program 1 times [2023-11-25 00:04:18,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:04:18,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291550540] [2023-11-25 00:04:18,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:04:18,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:04:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:04:18,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:04:18,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:04:18,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291550540] [2023-11-25 00:04:18,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291550540] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:04:18,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:04:18,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:04:18,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734564977] [2023-11-25 00:04:18,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:04:18,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-25 00:04:18,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:04:18,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-25 00:04:18,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-25 00:04:18,912 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 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, 2 states have (on average 3.0) internal successors, (6), 2 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) [2023-11-25 00:04:18,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:04:18,941 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2023-11-25 00:04:18,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-25 00:04:18,943 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2023-11-25 00:04:18,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:04:18,950 INFO L225 Difference]: With dead ends: 30 [2023-11-25 00:04:18,951 INFO L226 Difference]: Without dead ends: 15 [2023-11-25 00:04:18,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-25 00:04:18,957 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:04:18,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:04:18,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-25 00:04:18,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-25 00:04:18,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 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) [2023-11-25 00:04:18,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2023-11-25 00:04:18,993 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 8 [2023-11-25 00:04:18,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:04:18,994 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2023-11-25 00:04:18,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2023-11-25 00:04:18,995 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2023-11-25 00:04:18,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-25 00:04:18,996 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:04:18,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:04:18,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:04:18,997 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-25 00:04:18,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:04:18,998 INFO L85 PathProgramCache]: Analyzing trace with hash 553922649, now seen corresponding path program 1 times [2023-11-25 00:04:18,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:04:18,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415536588] [2023-11-25 00:04:18,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:04:18,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:04:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:04:19,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:04:19,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:04:19,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415536588] [2023-11-25 00:04:19,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415536588] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:04:19,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:04:19,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:04:19,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811701119] [2023-11-25 00:04:19,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:04:19,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:04:19,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:04:19,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:04:19,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:04:19,226 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-25 00:04:19,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:04:19,278 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2023-11-25 00:04:19,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:04:19,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 10 [2023-11-25 00:04:19,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:04:19,280 INFO L225 Difference]: With dead ends: 15 [2023-11-25 00:04:19,280 INFO L226 Difference]: Without dead ends: 14 [2023-11-25 00:04:19,283 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 [2023-11-25 00:04:19,285 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 8 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:04:19,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 22 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:04:19,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-25 00:04:19,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-25 00:04:19,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.1) internal successors, (11), 10 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) [2023-11-25 00:04:19,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2023-11-25 00:04:19,294 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2023-11-25 00:04:19,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:04:19,295 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2023-11-25 00:04:19,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-25 00:04:19,295 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-25 00:04:19,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-25 00:04:19,296 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:04:19,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:04:19,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:04:19,297 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-25 00:04:19,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:04:19,299 INFO L85 PathProgramCache]: Analyzing trace with hash -8267001, now seen corresponding path program 1 times [2023-11-25 00:04:19,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:04:19,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613302985] [2023-11-25 00:04:19,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:04:19,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:04:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:04:19,353 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-25 00:04:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:04:19,395 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-25 00:04:19,396 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-25 00:04:19,397 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-25 00:04:19,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-25 00:04:19,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-25 00:04:19,403 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-25 00:04:19,406 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:04:19,423 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet103 [2023-11-25 00:04:19,426 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post101 could not be translated [2023-11-25 00:04:19,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:04:19 BoogieIcfgContainer [2023-11-25 00:04:19,435 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:04:19,436 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:04:19,436 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:04:19,437 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:04:19,437 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:04:18" (3/4) ... [2023-11-25 00:04:19,440 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-25 00:04:19,441 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:04:19,442 INFO L158 Benchmark]: Toolchain (without parser) took 2964.96ms. Allocated memory is still 134.2MB. Free memory was 100.0MB in the beginning and 55.6MB in the end (delta: 44.4MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-25 00:04:19,447 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 100.7MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:04:19,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1474.46ms. Allocated memory is still 134.2MB. Free memory was 99.7MB in the beginning and 73.3MB in the end (delta: 26.4MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB. [2023-11-25 00:04:19,448 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.49ms. Allocated memory is still 134.2MB. Free memory was 73.3MB in the beginning and 70.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:04:19,449 INFO L158 Benchmark]: Boogie Preprocessor took 27.27ms. Allocated memory is still 134.2MB. Free memory was 70.7MB in the beginning and 69.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:04:19,449 INFO L158 Benchmark]: RCFGBuilder took 465.68ms. Allocated memory is still 134.2MB. Free memory was 69.0MB in the beginning and 98.3MB in the end (delta: -29.2MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2023-11-25 00:04:19,450 INFO L158 Benchmark]: TraceAbstraction took 917.32ms. Allocated memory is still 134.2MB. Free memory was 97.6MB in the beginning and 55.6MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-25 00:04:19,450 INFO L158 Benchmark]: Witness Printer took 5.03ms. Allocated memory is still 134.2MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:04:19,453 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 100.7MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1474.46ms. Allocated memory is still 134.2MB. Free memory was 99.7MB in the beginning and 73.3MB in the end (delta: 26.4MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.49ms. Allocated memory is still 134.2MB. Free memory was 73.3MB in the beginning and 70.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.27ms. Allocated memory is still 134.2MB. Free memory was 70.7MB in the beginning and 69.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 465.68ms. Allocated memory is still 134.2MB. Free memory was 69.0MB in the beginning and 98.3MB in the end (delta: -29.2MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * TraceAbstraction took 917.32ms. Allocated memory is still 134.2MB. Free memory was 97.6MB in the beginning and 55.6MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 5.03ms. Allocated memory is still 134.2MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet103 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: 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: 1569]: 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, overapproximation of large string literal at line 1578. 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)=2147483648, argc=2147483648, argv={2147483650:2147483649}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE190_Integer_Overflow__int_fgets_postinc_03_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] [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=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] data++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1569]: 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: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 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, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 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, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 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 [2023-11-25 00:04:19,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_03_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91 --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 6543db5d30f08824d9246bc55c721a6a0069742fa30ebaba77edc99892d3bbc9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:04:22,228 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:04:22,357 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-25 00:04:22,365 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:04:22,366 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:04:22,411 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:04:22,412 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:04:22,413 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:04:22,414 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:04:22,419 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:04:22,419 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:04:22,420 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:04:22,420 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:04:22,422 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:04:22,422 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:04:22,423 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:04:22,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:04:22,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:04:22,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:04:22,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:04:22,426 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:04:22,427 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:04:22,427 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-25 00:04:22,428 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-25 00:04:22,428 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-25 00:04:22,428 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-25 00:04:22,429 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:04:22,429 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:04:22,429 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:04:22,430 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:04:22,431 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-25 00:04:22,431 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:04:22,432 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:04:22,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:04:22,432 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:04:22,433 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:04:22,433 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:04:22,433 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-25 00:04:22,433 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-25 00:04:22,434 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:04:22,434 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:04:22,435 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:04:22,435 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:04:22,435 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_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6543db5d30f08824d9246bc55c721a6a0069742fa30ebaba77edc99892d3bbc9 [2023-11-25 00:04:22,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:04:22,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:04:22,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:04:22,928 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:04:22,928 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:04:22,930 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_03_bad.i [2023-11-25 00:04:26,212 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:04:26,687 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:04:26,691 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_03_bad.i [2023-11-25 00:04:26,729 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/data/7667eccdc/037cec248a2a43faacfe2d3ae47dcc30/FLAG629b47cdc [2023-11-25 00:04:26,746 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/data/7667eccdc/037cec248a2a43faacfe2d3ae47dcc30 [2023-11-25 00:04:26,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:04:26,753 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:04:26,756 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:04:26,757 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:04:26,762 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:04:26,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:04:26" (1/1) ... [2023-11-25 00:04:26,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a68417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:26, skipping insertion in model container [2023-11-25 00:04:26,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:04:26" (1/1) ... [2023-11-25 00:04:26,865 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:04:28,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:04:28,118 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:04:28,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:04:28,412 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:04:28,412 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:04:28,412 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:04:28,412 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:04:28,413 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:04:28,420 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:04:28,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:28 WrapperNode [2023-11-25 00:04:28,422 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:04:28,423 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:04:28,423 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:04:28,424 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:04:28,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:28" (1/1) ... [2023-11-25 00:04:28,477 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:28" (1/1) ... [2023-11-25 00:04:28,521 INFO L138 Inliner]: procedures = 504, calls = 63, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2023-11-25 00:04:28,522 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:04:28,523 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:04:28,523 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:04:28,523 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:04:28,533 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:28" (1/1) ... [2023-11-25 00:04:28,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:28" (1/1) ... [2023-11-25 00:04:28,546 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:28" (1/1) ... [2023-11-25 00:04:28,548 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:28" (1/1) ... [2023-11-25 00:04:28,562 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:28" (1/1) ... [2023-11-25 00:04:28,570 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:28" (1/1) ... [2023-11-25 00:04:28,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:28" (1/1) ... [2023-11-25 00:04:28,576 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:28" (1/1) ... [2023-11-25 00:04:28,581 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:04:28,582 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:04:28,582 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:04:28,582 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:04:28,583 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:28" (1/1) ... [2023-11-25 00:04:28,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:04:28,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:04:28,629 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:04:28,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:04:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-25 00:04:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-25 00:04:28,665 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-25 00:04:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:04:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-25 00:04:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:04:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:04:28,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:04:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:04:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-25 00:04:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-25 00:04:28,854 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:04:28,857 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:04:29,063 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:04:29,106 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:04:29,107 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-25 00:04:29,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:04:29 BoogieIcfgContainer [2023-11-25 00:04:29,107 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:04:29,110 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:04:29,110 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:04:29,118 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:04:29,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:04:26" (1/3) ... [2023-11-25 00:04:29,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e271a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:04:29, skipping insertion in model container [2023-11-25 00:04:29,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:04:28" (2/3) ... [2023-11-25 00:04:29,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e271a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:04:29, skipping insertion in model container [2023-11-25 00:04:29,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:04:29" (3/3) ... [2023-11-25 00:04:29,123 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_03_bad.i [2023-11-25 00:04:29,144 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:04:29,145 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-25 00:04:29,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:04:29,197 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;@4d8e1c9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:04:29,197 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-25 00:04:29,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 16 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) [2023-11-25 00:04:29,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-25 00:04:29,211 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:04:29,212 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:04:29,213 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-25 00:04:29,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:04:29,224 INFO L85 PathProgramCache]: Analyzing trace with hash 2040912116, now seen corresponding path program 1 times [2023-11-25 00:04:29,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:04:29,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004238994] [2023-11-25 00:04:29,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:04:29,256 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 [2023-11-25 00:04:29,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:04:29,260 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-25 00:04:29,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-25 00:04:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:04:29,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-25 00:04:29,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:04:29,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:04:29,420 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:04:29,421 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:04:29,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004238994] [2023-11-25 00:04:29,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2004238994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:04:29,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:04:29,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:04:29,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317446914] [2023-11-25 00:04:29,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:04:29,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-25 00:04:29,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:04:29,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-25 00:04:29,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-25 00:04:29,462 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 16 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, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-25 00:04:29,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:04:29,494 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2023-11-25 00:04:29,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-25 00:04:29,497 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 10 [2023-11-25 00:04:29,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:04:29,504 INFO L225 Difference]: With dead ends: 33 [2023-11-25 00:04:29,504 INFO L226 Difference]: Without dead ends: 16 [2023-11-25 00:04:29,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-25 00:04:29,511 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:04:29,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:04:29,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-25 00:04:29,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-25 00:04:29,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-25 00:04:29,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2023-11-25 00:04:29,546 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 10 [2023-11-25 00:04:29,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:04:29,548 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2023-11-25 00:04:29,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-25 00:04:29,548 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-11-25 00:04:29,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-25 00:04:29,549 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:04:29,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:04:29,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-25 00:04:29,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-25 00:04:29,753 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-25 00:04:29,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:04:29,754 INFO L85 PathProgramCache]: Analyzing trace with hash 929623985, now seen corresponding path program 1 times [2023-11-25 00:04:29,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:04:29,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899695120] [2023-11-25 00:04:29,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:04:29,755 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 [2023-11-25 00:04:29,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:04:29,757 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-25 00:04:29,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-25 00:04:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:04:29,911 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-25 00:04:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:04:30,000 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-25 00:04:30,000 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-25 00:04:30,002 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-25 00:04:30,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-25 00:04:30,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-25 00:04:30,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-25 00:04:30,212 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-25 00:04:30,218 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:04:30,253 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet101 [2023-11-25 00:04:30,257 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post99 could not be translated [2023-11-25 00:04:30,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:04:30 BoogieIcfgContainer [2023-11-25 00:04:30,271 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:04:30,273 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:04:30,273 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:04:30,273 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:04:30,274 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:04:29" (3/4) ... [2023-11-25 00:04:30,277 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-25 00:04:30,278 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:04:30,280 INFO L158 Benchmark]: Toolchain (without parser) took 3525.87ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 81.7MB in the beginning and 99.3MB in the end (delta: -17.6MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2023-11-25 00:04:30,287 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 81.8MB. Free memory was 58.4MB in the beginning and 58.3MB in the end (delta: 148.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:04:30,287 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1666.03ms. Allocated memory is still 109.1MB. Free memory was 81.7MB in the beginning and 67.1MB in the end (delta: 14.6MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2023-11-25 00:04:30,289 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.95ms. Allocated memory is still 109.1MB. Free memory was 67.1MB in the beginning and 64.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:04:30,289 INFO L158 Benchmark]: Boogie Preprocessor took 57.84ms. Allocated memory is still 109.1MB. Free memory was 63.9MB in the beginning and 61.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:04:30,290 INFO L158 Benchmark]: RCFGBuilder took 525.97ms. Allocated memory is still 109.1MB. Free memory was 61.9MB in the beginning and 75.5MB in the end (delta: -13.6MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2023-11-25 00:04:30,291 INFO L158 Benchmark]: TraceAbstraction took 1161.70ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 75.1MB in the beginning and 99.3MB in the end (delta: -24.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-25 00:04:30,297 INFO L158 Benchmark]: Witness Printer took 5.36ms. Allocated memory is still 132.1MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:04:30,299 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 81.8MB. Free memory was 58.4MB in the beginning and 58.3MB in the end (delta: 148.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1666.03ms. Allocated memory is still 109.1MB. Free memory was 81.7MB in the beginning and 67.1MB in the end (delta: 14.6MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.95ms. Allocated memory is still 109.1MB. Free memory was 67.1MB in the beginning and 64.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.84ms. Allocated memory is still 109.1MB. Free memory was 63.9MB in the beginning and 61.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 525.97ms. Allocated memory is still 109.1MB. Free memory was 61.9MB in the beginning and 75.5MB in the end (delta: -13.6MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1161.70ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 75.1MB in the beginning and 99.3MB in the end (delta: -24.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 5.36ms. Allocated memory is still 132.1MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet101 - 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: 1569]: 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, overapproximation of large string literal at line 1578. 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_postinc_03_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] [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=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] data++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1569]: 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: 1.0s, 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, 20 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 20 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 45 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 [2023-11-25 00:04:30,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d50ee66-28ea-401e-a01e-421fb42a5a9a/bin/utaipan-verify-SwPr7d2a91/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