./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_preinc_51_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/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_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_preinc_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/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_91c54314-6782-401c-9e36-3a7ae0cbf95a/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 bdd2af985324f822d405b5a4a6eeaef8e4931c8dbd5e5c010e8ab0a265294466 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:48:42,117 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:48:42,245 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-24 23:48:42,254 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:48:42,255 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:48:42,301 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:48:42,302 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:48:42,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:48:42,304 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:48:42,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:48:42,310 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:48:42,310 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:48:42,311 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:48:42,313 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:48:42,313 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:48:42,314 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:48:42,314 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:48:42,315 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:48:42,315 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:48:42,316 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:48:42,317 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:48:42,317 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:48:42,321 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:48:42,321 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:48:42,322 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:48:42,322 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:48:42,323 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:48:42,323 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:48:42,324 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:48:42,324 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:48:42,326 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:48:42,326 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:48:42,326 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:48:42,327 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:48:42,327 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:48:42,328 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:48:42,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:48:42,328 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:48:42,329 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:48:42,329 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:48:42,329 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:48:42,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:48:42,331 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:48:42,331 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:48:42,332 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:48:42,332 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:48:42,332 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_91c54314-6782-401c-9e36-3a7ae0cbf95a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdd2af985324f822d405b5a4a6eeaef8e4931c8dbd5e5c010e8ab0a265294466 [2023-11-24 23:48:42,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:48:42,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:48:42,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:48:42,731 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:48:42,734 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:48:42,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_preinc_51_bad.i [2023-11-24 23:48:45,908 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:48:46,323 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:48:46,324 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_preinc_51_bad.i [2023-11-24 23:48:46,358 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/data/cdda3d2b0/04126ad3532e44bbaf8122160b8ed1dd/FLAG83fff9caf [2023-11-24 23:48:46,376 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/data/cdda3d2b0/04126ad3532e44bbaf8122160b8ed1dd [2023-11-24 23:48:46,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:48:46,384 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:48:46,387 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:48:46,387 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:48:46,393 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:48:46,394 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:48:46" (1/1) ... [2023-11-24 23:48:46,395 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b0e9d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:46, skipping insertion in model container [2023-11-24 23:48:46,395 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:48:46" (1/1) ... [2023-11-24 23:48:46,480 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:48:47,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:48:47,592 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:48:47,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:48:47,933 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:48:47,933 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:48:47,933 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:48:47,933 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:48:47,942 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:48:47,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:47 WrapperNode [2023-11-24 23:48:47,943 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:48:47,944 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:48:47,945 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:48:47,945 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:48:47,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:47" (1/1) ... [2023-11-24 23:48:47,996 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:47" (1/1) ... [2023-11-24 23:48:48,029 INFO L138 Inliner]: procedures = 499, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 52 [2023-11-24 23:48:48,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:48:48,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:48:48,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:48:48,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:48:48,041 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:47" (1/1) ... [2023-11-24 23:48:48,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:47" (1/1) ... [2023-11-24 23:48:48,045 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:47" (1/1) ... [2023-11-24 23:48:48,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:47" (1/1) ... [2023-11-24 23:48:48,052 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:47" (1/1) ... [2023-11-24 23:48:48,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:47" (1/1) ... [2023-11-24 23:48:48,057 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:47" (1/1) ... [2023-11-24 23:48:48,058 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:47" (1/1) ... [2023-11-24 23:48:48,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:48:48,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:48:48,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:48:48,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:48:48,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:47" (1/1) ... [2023-11-24 23:48:48,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:48:48,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:48:48,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:48:48,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:48:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 23:48:48,161 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 23:48:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:48:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:48:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:48:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:48:48,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:48:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:48:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 23:48:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:48:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:48:48,324 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:48:48,326 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:48:48,448 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:48:48,495 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:48:48,495 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:48:48,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:48:48 BoogieIcfgContainer [2023-11-24 23:48:48,497 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:48:48,500 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:48:48,500 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:48:48,504 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:48:48,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:48:46" (1/3) ... [2023-11-24 23:48:48,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308e2ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:48:48, skipping insertion in model container [2023-11-24 23:48:48,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:47" (2/3) ... [2023-11-24 23:48:48,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308e2ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:48:48, skipping insertion in model container [2023-11-24 23:48:48,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:48:48" (3/3) ... [2023-11-24 23:48:48,508 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fscanf_preinc_51_bad.i [2023-11-24 23:48:48,528 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:48:48,528 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-24 23:48:48,578 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:48:48,586 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;@3d90050, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:48:48,586 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-24 23:48:48,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-24 23:48:48,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:48:48,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:48:48,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-24 23:48:48,600 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-24 23:48:48,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:48:48,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1830714995, now seen corresponding path program 1 times [2023-11-24 23:48:48,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:48:48,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678142428] [2023-11-24 23:48:48,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:48:48,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:48:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:48:49,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:48:49,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:48:49,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678142428] [2023-11-24 23:48:49,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678142428] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:48:49,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:48:49,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:48:49,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489088704] [2023-11-24 23:48:49,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:48:49,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:48:49,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:48:49,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:48:49,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:48:49,280 INFO L87 Difference]: Start difference. First operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-24 23:48:49,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:48:49,374 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2023-11-24 23:48:49,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:48:49,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 6 [2023-11-24 23:48:49,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:48:49,400 INFO L225 Difference]: With dead ends: 12 [2023-11-24 23:48:49,400 INFO L226 Difference]: Without dead ends: 8 [2023-11-24 23:48:49,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:48:49,409 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:48:49,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 9 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:48:49,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-11-24 23:48:49,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-24 23:48:49,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) [2023-11-24 23:48:49,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2023-11-24 23:48:49,454 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 6 [2023-11-24 23:48:49,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:48:49,454 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2023-11-24 23:48:49,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-24 23:48:49,455 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2023-11-24 23:48:49,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:48:49,455 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:48:49,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:48:49,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:48:49,456 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-24 23:48:49,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:48:49,459 INFO L85 PathProgramCache]: Analyzing trace with hash 917590043, now seen corresponding path program 1 times [2023-11-24 23:48:49,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:48:49,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135473552] [2023-11-24 23:48:49,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:48:49,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:48:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:48:49,517 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:48:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:48:49,584 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:48:49,585 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:48:49,587 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-24 23:48:49,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-24 23:48:49,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:48:49,594 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-24 23:48:49,598 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:48:49,622 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-11-24 23:48:49,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:48:49 BoogieIcfgContainer [2023-11-24 23:48:49,636 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:48:49,637 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:48:49,637 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:48:49,637 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:48:49,638 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:48:48" (3/4) ... [2023-11-24 23:48:49,644 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:48:49,644 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:48:49,646 INFO L158 Benchmark]: Toolchain (without parser) took 3261.63ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 109.1MB in the beginning and 90.9MB in the end (delta: 18.2MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. [2023-11-24 23:48:49,646 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 159.4MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:48:49,647 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1556.53ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 108.6MB in the beginning and 152.7MB in the end (delta: -44.2MB). Peak memory consumption was 64.8MB. Max. memory is 16.1GB. [2023-11-24 23:48:49,647 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.48ms. Allocated memory is still 201.3MB. Free memory was 152.7MB in the beginning and 149.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:48:49,648 INFO L158 Benchmark]: Boogie Preprocessor took 31.40ms. Allocated memory is still 201.3MB. Free memory was 149.5MB in the beginning and 148.5MB in the end (delta: 995.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:48:49,649 INFO L158 Benchmark]: RCFGBuilder took 434.83ms. Allocated memory is still 201.3MB. Free memory was 148.5MB in the beginning and 132.8MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 23:48:49,649 INFO L158 Benchmark]: TraceAbstraction took 1136.15ms. Allocated memory is still 201.3MB. Free memory was 132.8MB in the beginning and 90.9MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-24 23:48:49,650 INFO L158 Benchmark]: Witness Printer took 7.78ms. Allocated memory is still 201.3MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:48:49,653 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 159.4MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1556.53ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 108.6MB in the beginning and 152.7MB in the end (delta: -44.2MB). Peak memory consumption was 64.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.48ms. Allocated memory is still 201.3MB. Free memory was 152.7MB in the beginning and 149.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.40ms. Allocated memory is still 201.3MB. Free memory was 149.5MB in the beginning and 148.5MB in the end (delta: 995.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 434.83ms. Allocated memory is still 201.3MB. Free memory was 148.5MB in the beginning and 132.8MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1136.15ms. Allocated memory is still 201.3MB. Free memory was 132.8MB in the beginning and 90.9MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 7.78ms. Allocated memory is still 201.3MB. Free memory is still 90.9MB. 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~nondet102 - 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: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1559. 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); [L1559] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1559] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=2147483650, argc=2147483650, argv={2147483652:2147483651}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE190_Integer_Overflow__int_fscanf_preinc_51_bad() [L1551] int data; [L1552] data = 0 [L1554] EXPR \read(data) [L1554] CALL CWE190_Integer_Overflow__int_fscanf_preinc_51b_badSink(data) [L1567] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=2147483647, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1567]: 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, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 5 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.4s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:48:49,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/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_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_preinc_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/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_91c54314-6782-401c-9e36-3a7ae0cbf95a/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 bdd2af985324f822d405b5a4a6eeaef8e4931c8dbd5e5c010e8ab0a265294466 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:48:52,602 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:48:52,755 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-24 23:48:52,764 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:48:52,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:48:52,810 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:48:52,811 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:48:52,812 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:48:52,813 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:48:52,818 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:48:52,819 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:48:52,820 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:48:52,820 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:48:52,822 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:48:52,823 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:48:52,823 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:48:52,824 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:48:52,825 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:48:52,825 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:48:52,826 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:48:52,826 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:48:52,827 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:48:52,827 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:48:52,828 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:48:52,828 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:48:52,829 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:48:52,829 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:48:52,830 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:48:52,830 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:48:52,830 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:48:52,832 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:48:52,832 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:48:52,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:48:52,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:48:52,834 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:48:52,834 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:48:52,834 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:48:52,834 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:48:52,835 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:48:52,836 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:48:52,836 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:48:52,837 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:48:52,837 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:48:52,837 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_91c54314-6782-401c-9e36-3a7ae0cbf95a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdd2af985324f822d405b5a4a6eeaef8e4931c8dbd5e5c010e8ab0a265294466 [2023-11-24 23:48:53,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:48:53,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:48:53,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:48:53,304 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:48:53,304 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:48:53,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_preinc_51_bad.i [2023-11-24 23:48:56,520 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:48:57,008 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:48:57,009 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_preinc_51_bad.i [2023-11-24 23:48:57,048 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/data/5a19f70c8/f014151128de44b0a08ea21171b31fdc/FLAG06d1978d1 [2023-11-24 23:48:57,069 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/data/5a19f70c8/f014151128de44b0a08ea21171b31fdc [2023-11-24 23:48:57,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:48:57,074 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:48:57,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:48:57,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:48:57,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:48:57,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:48:57" (1/1) ... [2023-11-24 23:48:57,084 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2856ee81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:57, skipping insertion in model container [2023-11-24 23:48:57,084 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:48:57" (1/1) ... [2023-11-24 23:48:57,165 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:48:58,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:48:58,236 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:48:58,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:48:58,529 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:48:58,530 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:48:58,530 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:48:58,530 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:48:58,539 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:48:58,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:58 WrapperNode [2023-11-24 23:48:58,540 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:48:58,541 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:48:58,541 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:48:58,542 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:48:58,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:58" (1/1) ... [2023-11-24 23:48:58,613 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:58" (1/1) ... [2023-11-24 23:48:58,652 INFO L138 Inliner]: procedures = 504, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 51 [2023-11-24 23:48:58,653 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:48:58,654 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:48:58,654 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:48:58,655 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:48:58,665 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:58" (1/1) ... [2023-11-24 23:48:58,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:58" (1/1) ... [2023-11-24 23:48:58,679 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:58" (1/1) ... [2023-11-24 23:48:58,680 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:58" (1/1) ... [2023-11-24 23:48:58,695 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:58" (1/1) ... [2023-11-24 23:48:58,710 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:58" (1/1) ... [2023-11-24 23:48:58,714 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:58" (1/1) ... [2023-11-24 23:48:58,716 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:58" (1/1) ... [2023-11-24 23:48:58,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:48:58,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:48:58,727 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:48:58,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:48:58,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:58" (1/1) ... [2023-11-24 23:48:58,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:48:58,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:48:58,791 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:48:58,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:48:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 23:48:58,838 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 23:48:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:48:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:48:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:48:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:48:58,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:48:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 23:48:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:48:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 23:48:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 23:48:59,049 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:48:59,052 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:48:59,270 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:48:59,349 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:48:59,351 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:48:59,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:48:59 BoogieIcfgContainer [2023-11-24 23:48:59,354 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:48:59,356 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:48:59,358 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:48:59,361 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:48:59,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:48:57" (1/3) ... [2023-11-24 23:48:59,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b792c07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:48:59, skipping insertion in model container [2023-11-24 23:48:59,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:58" (2/3) ... [2023-11-24 23:48:59,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b792c07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:48:59, skipping insertion in model container [2023-11-24 23:48:59,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:48:59" (3/3) ... [2023-11-24 23:48:59,367 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fscanf_preinc_51_bad.i [2023-11-24 23:48:59,387 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:48:59,388 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-24 23:48:59,452 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:48:59,460 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;@2636794c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:48:59,460 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-24 23:48:59,466 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) 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) [2023-11-24 23:48:59,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:48:59,475 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:48:59,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:48:59,477 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-24 23:48:59,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:48:59,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1506175351, now seen corresponding path program 1 times [2023-11-24 23:48:59,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:48:59,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120217778] [2023-11-24 23:48:59,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:48:59,507 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 [2023-11-24 23:48:59,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:48:59,512 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/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) [2023-11-24 23:48:59,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/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 [2023-11-24 23:48:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:48:59,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:48:59,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:48:59,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:48:59,739 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:48:59,739 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:48:59,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120217778] [2023-11-24 23:48:59,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [120217778] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:48:59,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:48:59,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 23:48:59,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881611657] [2023-11-24 23:48:59,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:48:59,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:48:59,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:48:59,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:48:59,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:48:59,794 INFO L87 Difference]: Start difference. First operand has 14 states, 8 states have (on average 1.375) 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) Second operand has 2 states, 1 states have (on average 6.0) 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) [2023-11-24 23:48:59,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:48:59,824 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2023-11-24 23:48:59,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:48:59,828 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) 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 [2023-11-24 23:48:59,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:48:59,835 INFO L225 Difference]: With dead ends: 14 [2023-11-24 23:48:59,835 INFO L226 Difference]: Without dead ends: 10 [2023-11-24 23:48:59,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:48:59,843 INFO L413 NwaCegarLoop]: 11 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, 11 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 [2023-11-24 23:48:59,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:48:59,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-24 23:48:59,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-24 23:48:59,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 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) [2023-11-24 23:48:59,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-11-24 23:48:59,882 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2023-11-24 23:48:59,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:48:59,882 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2023-11-24 23:48:59,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) 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) [2023-11-24 23:48:59,883 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-11-24 23:48:59,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 23:48:59,884 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:48:59,884 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:48:59,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/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 [2023-11-24 23:49:00,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/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 [2023-11-24 23:49:00,089 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-24 23:49:00,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:49:00,090 INFO L85 PathProgramCache]: Analyzing trace with hash -553204329, now seen corresponding path program 1 times [2023-11-24 23:49:00,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:49:00,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140979316] [2023-11-24 23:49:00,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:00,092 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 [2023-11-24 23:49:00,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:49:00,094 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/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) [2023-11-24 23:49:00,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/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 [2023-11-24 23:49:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:49:00,217 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:49:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:49:00,288 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-24 23:49:00,288 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:49:00,290 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-24 23:49:00,300 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-24 23:49:00,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/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 [2023-11-24 23:49:00,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/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 [2023-11-24 23:49:00,505 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-24 23:49:00,509 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:49:00,526 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-11-24 23:49:00,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:49:00 BoogieIcfgContainer [2023-11-24 23:49:00,535 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:49:00,536 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:49:00,536 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:49:00,536 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:49:00,537 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:48:59" (3/4) ... [2023-11-24 23:49:00,539 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:49:00,540 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:49:00,541 INFO L158 Benchmark]: Toolchain (without parser) took 3466.27ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 67.2MB in the beginning and 82.4MB in the end (delta: -15.2MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2023-11-24 23:49:00,542 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 69.2MB. Free memory was 45.3MB in the beginning and 45.2MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:49:00,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1464.29ms. Allocated memory is still 94.4MB. Free memory was 67.2MB in the beginning and 56.1MB in the end (delta: 11.1MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2023-11-24 23:49:00,543 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.31ms. Allocated memory is still 94.4MB. Free memory was 56.1MB in the beginning and 53.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:49:00,543 INFO L158 Benchmark]: Boogie Preprocessor took 71.47ms. Allocated memory is still 94.4MB. Free memory was 53.0MB in the beginning and 50.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:49:00,544 INFO L158 Benchmark]: RCFGBuilder took 627.97ms. Allocated memory is still 94.4MB. Free memory was 50.9MB in the beginning and 65.1MB in the end (delta: -14.1MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2023-11-24 23:49:00,545 INFO L158 Benchmark]: TraceAbstraction took 1179.15ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 64.5MB in the beginning and 83.0MB in the end (delta: -18.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-24 23:49:00,546 INFO L158 Benchmark]: Witness Printer took 3.90ms. Allocated memory is still 113.2MB. Free memory was 83.0MB in the beginning and 82.4MB in the end (delta: 664.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:49:00,549 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 69.2MB. Free memory was 45.3MB in the beginning and 45.2MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1464.29ms. Allocated memory is still 94.4MB. Free memory was 67.2MB in the beginning and 56.1MB in the end (delta: 11.1MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.31ms. Allocated memory is still 94.4MB. Free memory was 56.1MB in the beginning and 53.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.47ms. Allocated memory is still 94.4MB. Free memory was 53.0MB in the beginning and 50.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 627.97ms. Allocated memory is still 94.4MB. Free memory was 50.9MB in the beginning and 65.1MB in the end (delta: -14.1MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1179.15ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 64.5MB in the beginning and 83.0MB in the end (delta: -18.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 3.90ms. Allocated memory is still 113.2MB. Free memory was 83.0MB in the beginning and 82.4MB in the end (delta: 664.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet100 - 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: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1559. 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); [L1559] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1559] 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] [L1560] CALL CWE190_Integer_Overflow__int_fscanf_preinc_51_bad() [L1551] int data; [L1552] data = 0 [L1554] EXPR \read(data) [L1554] CALL CWE190_Integer_Overflow__int_fscanf_preinc_51b_badSink(data) [L1567] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=2147483647, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1567]: 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, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 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, 11 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 65 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 [2023-11-24 23:49:00,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c54314-6782-401c-9e36-3a7ae0cbf95a/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