./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_32_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2 --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 91e3a7abfdbbfc0d2fd5858d81c6ca24af89d28b5d45d27832edb15e832139d1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:32:16,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:32:16,318 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-02 12:32:16,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:32:16,325 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:32:16,367 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:32:16,368 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:32:16,368 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:32:16,369 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:32:16,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:32:16,370 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:32:16,371 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:32:16,371 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:32:16,373 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:32:16,374 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:32:16,374 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:32:16,374 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:32:16,375 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:32:16,375 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:32:16,379 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:32:16,379 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:32:16,381 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:32:16,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:32:16,382 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:32:16,382 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:32:16,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:32:16,383 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:32:16,383 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:32:16,383 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:32:16,383 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:32:16,384 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 12:32:16,385 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:32:16,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:32:16,386 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:32:16,386 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:32:16,386 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:32:16,386 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:32:16,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:32:16,387 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:32:16,387 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:32:16,387 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:32:16,388 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:32:16,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:32:16,388 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:32:16,389 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:32:16,389 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:32:16,389 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_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91e3a7abfdbbfc0d2fd5858d81c6ca24af89d28b5d45d27832edb15e832139d1 [2024-11-02 12:32:16,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:32:16,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:32:16,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:32:16,733 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:32:16,734 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:32:16,735 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_32_bad.i Unable to find full path for "g++" [2024-11-02 12:32:18,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:32:19,476 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:32:19,479 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_32_bad.i [2024-11-02 12:32:19,512 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/data/984a41692/4e3828dc0e9745a7af32c4d3f59acfee/FLAGaae0c04da [2024-11-02 12:32:19,533 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/data/984a41692/4e3828dc0e9745a7af32c4d3f59acfee [2024-11-02 12:32:19,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:32:19,539 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:32:19,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:32:19,543 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:32:19,550 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:32:19,551 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:32:19" (1/1) ... [2024-11-02 12:32:19,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64decd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:19, skipping insertion in model container [2024-11-02 12:32:19,554 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:32:19" (1/1) ... [2024-11-02 12:32:19,614 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:32:20,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:32:20,760 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:32:20,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:32:21,102 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:32:21,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:21 WrapperNode [2024-11-02 12:32:21,103 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:32:21,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:32:21,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:32:21,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:32:21,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:21" (1/1) ... [2024-11-02 12:32:21,139 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:21" (1/1) ... [2024-11-02 12:32:21,170 INFO L138 Inliner]: procedures = 498, calls = 42, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2024-11-02 12:32:21,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:32:21,171 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:32:21,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:32:21,171 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:32:21,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:21" (1/1) ... [2024-11-02 12:32:21,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:21" (1/1) ... [2024-11-02 12:32:21,184 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:21" (1/1) ... [2024-11-02 12:32:21,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:21" (1/1) ... [2024-11-02 12:32:21,190 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:21" (1/1) ... [2024-11-02 12:32:21,192 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:21" (1/1) ... [2024-11-02 12:32:21,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:21" (1/1) ... [2024-11-02 12:32:21,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:21" (1/1) ... [2024-11-02 12:32:21,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:32:21,198 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:32:21,198 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:32:21,198 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:32:21,199 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:21" (1/1) ... [2024-11-02 12:32:21,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:32:21,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:32:21,234 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:32:21,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:32:21,284 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-02 12:32:21,284 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-02 12:32:21,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:32:21,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:32:21,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:32:21,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:32:21,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:32:21,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:32:21,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:32:21,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:32:21,450 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:32:21,452 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:32:21,659 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-02 12:32:21,659 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:32:21,717 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:32:21,717 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:32:21,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:32:21 BoogieIcfgContainer [2024-11-02 12:32:21,718 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:32:21,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:32:21,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:32:21,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:32:21,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:32:19" (1/3) ... [2024-11-02 12:32:21,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bec43d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:32:21, skipping insertion in model container [2024-11-02 12:32:21,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:21" (2/3) ... [2024-11-02 12:32:21,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bec43d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:32:21, skipping insertion in model container [2024-11-02 12:32:21,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:32:21" (3/3) ... [2024-11-02 12:32:21,726 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_32_bad.i [2024-11-02 12:32:21,748 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:32:21,748 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-02 12:32:21,814 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:32:21,819 INFO L333 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, 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;@7925db46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:32:21,819 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-02 12:32:21,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 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) [2024-11-02 12:32:21,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-02 12:32:21,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:21,831 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:32:21,832 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-02 12:32:21,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:21,864 INFO L85 PathProgramCache]: Analyzing trace with hash 781811922, now seen corresponding path program 1 times [2024-11-02 12:32:21,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:21,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011221720] [2024-11-02 12:32:21,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:21,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:22,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:32:22,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:32:22,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011221720] [2024-11-02 12:32:22,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011221720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:32:22,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:32:22,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:32:22,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564108354] [2024-11-02 12:32:22,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:32:22,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:32:22,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:32:22,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:32:22,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:32:22,834 INFO L87 Difference]: Start difference. First operand has 16 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:32:22,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:32:22,912 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2024-11-02 12:32:22,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:32:22,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2024-11-02 12:32:22,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:32:22,942 INFO L225 Difference]: With dead ends: 16 [2024-11-02 12:32:22,943 INFO L226 Difference]: Without dead ends: 12 [2024-11-02 12:32:22,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:32:22,952 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 3 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:32:22,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 26 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:32:22,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-02 12:32:22,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-02 12:32:22,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2024-11-02 12:32:22,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2024-11-02 12:32:22,998 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 8 [2024-11-02 12:32:23,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:32:23,000 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-11-02 12:32:23,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:32:23,001 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2024-11-02 12:32:23,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-02 12:32:23,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:23,004 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:32:23,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:32:23,005 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-02 12:32:23,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:23,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1533634139, now seen corresponding path program 1 times [2024-11-02 12:32:23,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:23,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279941714] [2024-11-02 12:32:23,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:23,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:32:23,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:32:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:32:23,159 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:32:23,160 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:32:23,162 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-02 12:32:23,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-02 12:32:23,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:32:23,170 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-02 12:32:23,207 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:32:23,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:32:23 BoogieIcfgContainer [2024-11-02 12:32:23,213 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:32:23,214 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:32:23,214 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:32:23,215 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:32:23,216 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:32:21" (3/4) ... [2024-11-02 12:32:23,219 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 12:32:23,220 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:32:23,221 INFO L158 Benchmark]: Toolchain (without parser) took 3682.20ms. Allocated memory was 146.8MB in the beginning and 190.8MB in the end (delta: 44.0MB). Free memory was 114.2MB in the beginning and 138.7MB in the end (delta: -24.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-02 12:32:23,222 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 104.9MB. Free memory is still 53.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:32:23,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1561.25ms. Allocated memory is still 146.8MB. Free memory was 113.8MB in the beginning and 87.1MB in the end (delta: 26.7MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. [2024-11-02 12:32:23,225 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.97ms. Allocated memory is still 146.8MB. Free memory was 87.1MB in the beginning and 83.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 12:32:23,226 INFO L158 Benchmark]: Boogie Preprocessor took 25.94ms. Allocated memory is still 146.8MB. Free memory was 83.7MB in the beginning and 82.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:32:23,227 INFO L158 Benchmark]: RCFGBuilder took 520.47ms. Allocated memory is still 146.8MB. Free memory was 82.3MB in the beginning and 65.5MB in the end (delta: 16.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-02 12:32:23,228 INFO L158 Benchmark]: TraceAbstraction took 1492.76ms. Allocated memory was 146.8MB in the beginning and 190.8MB in the end (delta: 44.0MB). Free memory was 64.8MB in the beginning and 139.8MB in the end (delta: -75.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:32:23,228 INFO L158 Benchmark]: Witness Printer took 6.68ms. Allocated memory is still 190.8MB. Free memory was 139.8MB in the beginning and 138.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:32:23,231 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 104.9MB. Free memory is still 53.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1561.25ms. Allocated memory is still 146.8MB. Free memory was 113.8MB in the beginning and 87.1MB in the end (delta: 26.7MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.97ms. Allocated memory is still 146.8MB. Free memory was 87.1MB in the beginning and 83.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.94ms. Allocated memory is still 146.8MB. Free memory was 83.7MB in the beginning and 82.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 520.47ms. Allocated memory is still 146.8MB. Free memory was 82.3MB in the beginning and 65.5MB in the end (delta: 16.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1492.76ms. Allocated memory was 146.8MB in the beginning and 190.8MB in the end (delta: 44.0MB). Free memory was 64.8MB in the beginning and 139.8MB in the end (delta: -75.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.68ms. Allocated memory is still 190.8MB. Free memory was 139.8MB in the beginning and 138.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1580, overapproximation of fgets at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1580] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1580] RET 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] [L1581] CALL CWE190_Integer_Overflow__int_fgets_add_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] int data = *dataPtr1; [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={18:0}, dataPtr1={19:0}, dataPtr2={19:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] EXPR \read(data) [L1567] *dataPtr1 = data [L1555] int data = *dataPtr1; [L1570] int data = *dataPtr2; [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1572] EXPR \read(data) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] data + 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 9 mSDtfsCounter, 30 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-02 12:32:23,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2 --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 91e3a7abfdbbfc0d2fd5858d81c6ca24af89d28b5d45d27832edb15e832139d1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:32:25,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:32:26,013 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-02 12:32:26,021 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:32:26,024 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:32:26,064 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:32:26,065 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:32:26,066 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:32:26,067 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:32:26,069 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:32:26,070 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:32:26,071 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:32:26,071 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:32:26,071 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:32:26,072 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:32:26,076 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:32:26,077 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:32:26,077 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:32:26,077 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:32:26,078 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:32:26,078 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:32:26,079 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:32:26,079 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:32:26,079 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 12:32:26,081 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:32:26,082 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 12:32:26,082 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 12:32:26,082 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:32:26,083 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:32:26,083 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:32:26,083 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:32:26,084 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 12:32:26,084 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:32:26,084 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:32:26,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:32:26,086 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:32:26,086 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:32:26,087 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:32:26,087 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 12:32:26,087 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 12:32:26,088 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:32:26,089 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:32:26,089 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:32:26,089 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_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91e3a7abfdbbfc0d2fd5858d81c6ca24af89d28b5d45d27832edb15e832139d1 [2024-11-02 12:32:26,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:32:26,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:32:26,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:32:26,574 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:32:26,575 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:32:26,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_32_bad.i Unable to find full path for "g++" [2024-11-02 12:32:28,868 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:32:29,375 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:32:29,376 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_32_bad.i [2024-11-02 12:32:29,423 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/data/6d35e9ec4/b2c8310eb02e412b9c9245e4b0cd9900/FLAG7d303a91a [2024-11-02 12:32:29,509 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/data/6d35e9ec4/b2c8310eb02e412b9c9245e4b0cd9900 [2024-11-02 12:32:29,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:32:29,514 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:32:29,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:32:29,520 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:32:29,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:32:29,535 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:32:29" (1/1) ... [2024-11-02 12:32:29,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c77ae4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:29, skipping insertion in model container [2024-11-02 12:32:29,541 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:32:29" (1/1) ... [2024-11-02 12:32:29,698 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:32:31,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:32:31,286 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:32:31,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:32:31,662 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:32:31,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:31 WrapperNode [2024-11-02 12:32:31,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:32:31,666 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:32:31,666 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:32:31,666 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:32:31,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:31" (1/1) ... [2024-11-02 12:32:31,714 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:31" (1/1) ... [2024-11-02 12:32:31,749 INFO L138 Inliner]: procedures = 504, calls = 42, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2024-11-02 12:32:31,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:32:31,752 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:32:31,753 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:32:31,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:32:31,766 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:31" (1/1) ... [2024-11-02 12:32:31,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:31" (1/1) ... [2024-11-02 12:32:31,776 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:31" (1/1) ... [2024-11-02 12:32:31,780 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:31" (1/1) ... [2024-11-02 12:32:31,799 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:31" (1/1) ... [2024-11-02 12:32:31,805 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:31" (1/1) ... [2024-11-02 12:32:31,808 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:31" (1/1) ... [2024-11-02 12:32:31,814 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:31" (1/1) ... [2024-11-02 12:32:31,822 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:32:31,827 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:32:31,827 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:32:31,827 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:32:31,828 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:31" (1/1) ... [2024-11-02 12:32:31,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:32:31,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:32:31,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:32:31,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:32:31,911 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-02 12:32:31,911 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-02 12:32:31,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:32:31,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 12:32:31,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-02 12:32:31,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:32:31,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:32:31,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:32:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-02 12:32:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:32:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-02 12:32:32,116 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:32:32,118 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:32:32,389 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-02 12:32:32,389 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:32:32,404 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:32:32,405 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:32:32,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:32:32 BoogieIcfgContainer [2024-11-02 12:32:32,405 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:32:32,410 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:32:32,410 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:32:32,415 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:32:32,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:32:29" (1/3) ... [2024-11-02 12:32:32,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728d5f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:32:32, skipping insertion in model container [2024-11-02 12:32:32,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:31" (2/3) ... [2024-11-02 12:32:32,418 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728d5f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:32:32, skipping insertion in model container [2024-11-02 12:32:32,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:32:32" (3/3) ... [2024-11-02 12:32:32,422 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_32_bad.i [2024-11-02 12:32:32,442 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:32:32,442 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-02 12:32:32,514 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:32:32,524 INFO L333 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, 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;@4c18cf36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:32:32,524 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-02 12:32:32,531 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 18 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) [2024-11-02 12:32:32,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-02 12:32:32,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:32,543 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:32:32,544 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-02 12:32:32,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:32,551 INFO L85 PathProgramCache]: Analyzing trace with hash 733376356, now seen corresponding path program 1 times [2024-11-02 12:32:32,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:32:32,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597107319] [2024-11-02 12:32:32,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:32,574 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 [2024-11-02 12:32:32,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:32:32,578 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:32:32,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:32:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:32,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 12:32:32,854 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:32:32,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:32:32,886 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:32:32,887 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:32:32,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1597107319] [2024-11-02 12:32:32,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1597107319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:32:32,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:32:32,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:32:32,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511521174] [2024-11-02 12:32:32,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:32:32,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:32:32,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:32:32,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:32:32,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:32:32,936 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:32:32,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:32:32,959 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2024-11-02 12:32:32,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:32:32,962 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-02 12:32:32,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:32:32,971 INFO L225 Difference]: With dead ends: 23 [2024-11-02 12:32:32,971 INFO L226 Difference]: Without dead ends: 15 [2024-11-02 12:32:32,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:32:32,983 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:32:32,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:32:33,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-02 12:32:33,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-02 12:32:33,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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) [2024-11-02 12:32:33,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2024-11-02 12:32:33,030 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2024-11-02 12:32:33,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:32:33,032 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2024-11-02 12:32:33,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:32:33,033 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-02 12:32:33,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-02 12:32:33,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:33,036 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:32:33,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:32:33,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:32:33,242 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-02 12:32:33,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:33,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1259830611, now seen corresponding path program 1 times [2024-11-02 12:32:33,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:32:33,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121763788] [2024-11-02 12:32:33,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:33,244 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 [2024-11-02 12:32:33,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:32:33,248 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:32:33,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:32:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:32:33,526 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:32:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:32:33,722 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-02 12:32:33,722 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:32:33,724 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-02 12:32:33,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-02 12:32:33,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:32:33,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:32:33,932 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-02 12:32:33,971 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:32:33,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:32:33 BoogieIcfgContainer [2024-11-02 12:32:33,977 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:32:33,977 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:32:33,978 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:32:33,978 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:32:33,978 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:32:32" (3/4) ... [2024-11-02 12:32:33,980 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 12:32:33,981 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:32:33,982 INFO L158 Benchmark]: Toolchain (without parser) took 4468.33ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 43.5MB in the beginning and 49.5MB in the end (delta: -6.0MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2024-11-02 12:32:33,983 INFO L158 Benchmark]: CDTParser took 1.38ms. Allocated memory is still 58.7MB. Free memory was 35.4MB in the beginning and 35.4MB in the end (delta: 71.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:32:33,983 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2145.33ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 43.3MB in the beginning and 55.4MB in the end (delta: -12.0MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2024-11-02 12:32:33,984 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.12ms. Allocated memory is still 90.2MB. Free memory was 55.4MB in the beginning and 52.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:32:33,984 INFO L158 Benchmark]: Boogie Preprocessor took 73.55ms. Allocated memory is still 90.2MB. Free memory was 52.3MB in the beginning and 50.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:32:33,985 INFO L158 Benchmark]: RCFGBuilder took 578.90ms. Allocated memory is still 90.2MB. Free memory was 50.1MB in the beginning and 58.1MB in the end (delta: -8.0MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2024-11-02 12:32:33,985 INFO L158 Benchmark]: TraceAbstraction took 1566.86ms. Allocated memory is still 90.2MB. Free memory was 57.5MB in the beginning and 49.6MB in the end (delta: 7.9MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2024-11-02 12:32:33,986 INFO L158 Benchmark]: Witness Printer took 3.95ms. Allocated memory is still 90.2MB. Free memory was 49.6MB in the beginning and 49.5MB in the end (delta: 143.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:32:33,989 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.38ms. Allocated memory is still 58.7MB. Free memory was 35.4MB in the beginning and 35.4MB in the end (delta: 71.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2145.33ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 43.3MB in the beginning and 55.4MB in the end (delta: -12.0MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.12ms. Allocated memory is still 90.2MB. Free memory was 55.4MB in the beginning and 52.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.55ms. Allocated memory is still 90.2MB. Free memory was 52.3MB in the beginning and 50.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 578.90ms. Allocated memory is still 90.2MB. Free memory was 50.1MB in the beginning and 58.1MB in the end (delta: -8.0MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1566.86ms. Allocated memory is still 90.2MB. Free memory was 57.5MB in the beginning and 49.6MB in the end (delta: 7.9MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Witness Printer took 3.95ms. Allocated memory is still 90.2MB. Free memory was 49.6MB in the beginning and 49.5MB in the end (delta: 143.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1580, overapproximation of fgets at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1580] RET 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] [L1581] CALL CWE190_Integer_Overflow__int_fgets_add_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] int data = *dataPtr1; [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, dataPtr1={7:0}, dataPtr2={7:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] EXPR \read(data) [L1567] *dataPtr1 = data [L1555] int data = *dataPtr1; [L1570] int data = *dataPtr2; [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1572] EXPR \read(data) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] data + 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 112 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 [2024-11-02 12:32:34,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbecf680-5b7a-4e0e-b37e-cba44eddceea/bin/utaipan-verify-DbMuA5NWw2/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