./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje --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 e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:06:25,120 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:06:25,219 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-09 06:06:25,226 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:06:25,227 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:06:25,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:06:25,280 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:06:25,283 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:06:25,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:06:25,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:06:25,284 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:06:25,285 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:06:25,285 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:06:25,288 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:06:25,288 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:06:25,289 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:06:25,289 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:06:25,294 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:06:25,294 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:06:25,295 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:06:25,295 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:06:25,296 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:06:25,300 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:06:25,301 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:06:25,301 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:06:25,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:06:25,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:06:25,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:06:25,302 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:06:25,307 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:06:25,307 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:06:25,308 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:06:25,308 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:06:25,308 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:06:25,308 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:06:25,309 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:06:25,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:06:25,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:06:25,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:06:25,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:06:25,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:06:25,313 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:06:25,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:06:25,314 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:06:25,314 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:06:25,315 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:06:25,315 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_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 [2024-11-09 06:06:25,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:06:25,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:06:25,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:06:25,666 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:06:25,666 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:06:25,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i Unable to find full path for "g++" [2024-11-09 06:06:27,900 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:06:28,304 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:06:28,308 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2024-11-09 06:06:28,337 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/data/ee261212e/81411827d6084eb2aa45676db9da701b/FLAG717e75ca3 [2024-11-09 06:06:28,476 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/data/ee261212e/81411827d6084eb2aa45676db9da701b [2024-11-09 06:06:28,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:06:28,480 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:06:28,483 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:06:28,483 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:06:28,488 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:06:28,489 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:06:28" (1/1) ... [2024-11-09 06:06:28,490 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@257133cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:28, skipping insertion in model container [2024-11-09 06:06:28,490 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:06:28" (1/1) ... [2024-11-09 06:06:28,586 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:06:29,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:06:29,818 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:06:29,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:06:30,171 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:06:30,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:30 WrapperNode [2024-11-09 06:06:30,172 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:06:30,173 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:06:30,174 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:06:30,174 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:06:30,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:30" (1/1) ... [2024-11-09 06:06:30,215 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:30" (1/1) ... [2024-11-09 06:06:30,251 INFO L138 Inliner]: procedures = 497, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 112 [2024-11-09 06:06:30,253 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:06:30,255 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:06:30,255 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:06:30,256 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:06:30,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:30" (1/1) ... [2024-11-09 06:06:30,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:30" (1/1) ... [2024-11-09 06:06:30,281 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:30" (1/1) ... [2024-11-09 06:06:30,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:30" (1/1) ... [2024-11-09 06:06:30,291 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:30" (1/1) ... [2024-11-09 06:06:30,296 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:30" (1/1) ... [2024-11-09 06:06:30,297 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:30" (1/1) ... [2024-11-09 06:06:30,303 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:30" (1/1) ... [2024-11-09 06:06:30,306 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:06:30,311 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:06:30,311 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:06:30,311 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:06:30,312 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:30" (1/1) ... [2024-11-09 06:06:30,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:06:30,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:06:30,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:06:30,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:06:30,405 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 06:06:30,405 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 06:06:30,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:06:30,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:06:30,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:06:30,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:06:30,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:06:30,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:06:30,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:06:30,561 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:06:30,563 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:06:30,810 INFO L? ?]: Removed 61 outVars from TransFormulas that were not future-live. [2024-11-09 06:06:30,810 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:06:31,070 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:06:31,070 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:06:31,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:06:31 BoogieIcfgContainer [2024-11-09 06:06:31,071 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:06:31,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:06:31,074 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:06:31,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:06:31,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:06:28" (1/3) ... [2024-11-09 06:06:31,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3b8ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:06:31, skipping insertion in model container [2024-11-09 06:06:31,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:30" (2/3) ... [2024-11-09 06:06:31,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3b8ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:06:31, skipping insertion in model container [2024-11-09 06:06:31,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:06:31" (3/3) ... [2024-11-09 06:06:31,083 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2024-11-09 06:06:31,105 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:06:31,105 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 06:06:31,163 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:06:31,170 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;@106c0293, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:06:31,170 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 06:06:31,175 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) [2024-11-09 06:06:31,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 06:06:31,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:06:31,186 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 06:06:31,186 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 06:06:31,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:06:31,192 INFO L85 PathProgramCache]: Analyzing trace with hash -157486577, now seen corresponding path program 1 times [2024-11-09 06:06:31,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:06:31,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313699976] [2024-11-09 06:06:31,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:06:31,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:06:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:06:31,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:06:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:06:31,762 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:06:31,764 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:06:31,766 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 06:06:31,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 06:06:31,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:06:31,775 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:06:31,802 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:06:31,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:06:31 BoogieIcfgContainer [2024-11-09 06:06:31,806 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:06:31,807 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:06:31,807 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:06:31,807 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:06:31,810 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:06:31" (3/4) ... [2024-11-09 06:06:31,813 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:06:31,814 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:06:31,817 INFO L158 Benchmark]: Toolchain (without parser) took 3335.51ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 120.6MB in the beginning and 150.1MB in the end (delta: -29.5MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2024-11-09 06:06:31,817 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:06:31,818 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1689.67ms. Allocated memory is still 155.2MB. Free memory was 120.3MB in the beginning and 95.4MB in the end (delta: 24.9MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2024-11-09 06:06:31,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.39ms. Allocated memory is still 155.2MB. Free memory was 95.4MB in the beginning and 92.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:06:31,820 INFO L158 Benchmark]: Boogie Preprocessor took 54.78ms. Allocated memory is still 155.2MB. Free memory was 92.1MB in the beginning and 90.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:06:31,821 INFO L158 Benchmark]: RCFGBuilder took 760.19ms. Allocated memory is still 155.2MB. Free memory was 90.7MB in the beginning and 99.6MB in the end (delta: -8.9MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2024-11-09 06:06:31,822 INFO L158 Benchmark]: TraceAbstraction took 733.13ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 98.8MB in the beginning and 151.2MB in the end (delta: -52.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-09 06:06:31,823 INFO L158 Benchmark]: Witness Printer took 7.70ms. Allocated memory is still 195.0MB. Free memory was 151.2MB in the beginning and 150.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:06:31,828 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1689.67ms. Allocated memory is still 155.2MB. Free memory was 120.3MB in the beginning and 95.4MB in the end (delta: 24.9MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.39ms. Allocated memory is still 155.2MB. Free memory was 95.4MB in the beginning and 92.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.78ms. Allocated memory is still 155.2MB. Free memory was 92.1MB in the beginning and 90.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 760.19ms. Allocated memory is still 155.2MB. Free memory was 90.7MB in the beginning and 99.6MB in the end (delta: -8.9MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * TraceAbstraction took 733.13ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 98.8MB in the beginning and 151.2MB in the end (delta: -52.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 7.70ms. Allocated memory is still 195.0MB. Free memory was 151.2MB in the beginning and 150.1MB in the end (delta: 1.0MB). 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: 1562]: 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 1571, overapproximation of bitwiseOr at line 1556. 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); [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1556] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] *dataPtr1 = data [L1560] EXPR \read(*dataPtr2) [L1560] int data = *dataPtr2; [L1562] --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] - UnprovableResult [Line: 1562]: 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: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2024-11-09 06:06:31,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje --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 e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:06:34,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:06:34,572 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-09 06:06:34,580 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:06:34,581 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:06:34,629 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:06:34,629 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:06:34,630 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:06:34,636 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:06:34,636 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:06:34,637 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:06:34,637 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:06:34,638 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:06:34,638 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:06:34,638 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:06:34,639 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:06:34,643 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:06:34,644 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:06:34,648 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:06:34,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:06:34,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:06:34,649 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:06:34,649 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:06:34,650 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:06:34,650 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:06:34,650 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:06:34,651 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:06:34,651 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:06:34,651 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:06:34,651 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:06:34,652 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:06:34,652 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:06:34,652 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:06:34,655 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:06:34,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:06:34,656 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:06:34,657 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:06:34,657 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:06:34,658 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:06:34,658 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:06:34,659 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:06:34,659 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:06:34,659 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 [2024-11-09 06:06:35,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:06:35,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:06:35,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:06:35,155 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:06:35,155 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:06:35,157 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i Unable to find full path for "g++" [2024-11-09 06:06:37,510 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:06:37,986 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:06:37,990 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2024-11-09 06:06:38,025 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/data/5145716a1/e931d73e2a424a7289b155ffd3ddf9bd/FLAGe987557dd [2024-11-09 06:06:38,043 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/data/5145716a1/e931d73e2a424a7289b155ffd3ddf9bd [2024-11-09 06:06:38,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:06:38,049 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:06:38,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:06:38,052 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:06:38,059 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:06:38,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:06:38" (1/1) ... [2024-11-09 06:06:38,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@435f6b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:38, skipping insertion in model container [2024-11-09 06:06:38,061 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:06:38" (1/1) ... [2024-11-09 06:06:38,144 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:06:39,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:06:39,531 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:06:39,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:06:39,790 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:06:39,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:39 WrapperNode [2024-11-09 06:06:39,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:06:39,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:06:39,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:06:39,792 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:06:39,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:39" (1/1) ... [2024-11-09 06:06:39,827 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:39" (1/1) ... [2024-11-09 06:06:39,852 INFO L138 Inliner]: procedures = 502, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2024-11-09 06:06:39,853 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:06:39,854 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:06:39,854 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:06:39,855 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:06:39,866 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:39" (1/1) ... [2024-11-09 06:06:39,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:39" (1/1) ... [2024-11-09 06:06:39,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:39" (1/1) ... [2024-11-09 06:06:39,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:39" (1/1) ... [2024-11-09 06:06:39,886 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:39" (1/1) ... [2024-11-09 06:06:39,888 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:39" (1/1) ... [2024-11-09 06:06:39,891 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:39" (1/1) ... [2024-11-09 06:06:39,893 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:39" (1/1) ... [2024-11-09 06:06:39,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:06:39,899 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:06:39,899 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:06:39,899 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:06:39,901 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:39" (1/1) ... [2024-11-09 06:06:39,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:06:39,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:06:39,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:06:39,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:06:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 06:06:39,976 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 06:06:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:06:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:06:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:06:39,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:06:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 06:06:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:06:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 06:06:40,208 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:06:40,211 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:06:40,516 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-11-09 06:06:40,516 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:06:40,536 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:06:40,537 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:06:40,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:06:40 BoogieIcfgContainer [2024-11-09 06:06:40,538 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:06:40,543 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:06:40,544 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:06:40,549 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:06:40,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:06:38" (1/3) ... [2024-11-09 06:06:40,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b56f306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:06:40, skipping insertion in model container [2024-11-09 06:06:40,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:06:39" (2/3) ... [2024-11-09 06:06:40,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b56f306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:06:40, skipping insertion in model container [2024-11-09 06:06:40,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:06:40" (3/3) ... [2024-11-09 06:06:40,555 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2024-11-09 06:06:40,580 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:06:40,581 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 06:06:40,679 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:06:40,686 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;@2aa90431, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:06:40,686 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 06:06:40,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 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) [2024-11-09 06:06:40,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 06:06:40,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:06:40,703 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:06:40,704 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 06:06:40,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:06:40,716 INFO L85 PathProgramCache]: Analyzing trace with hash 51472802, now seen corresponding path program 1 times [2024-11-09 06:06:40,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:06:40,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [404905540] [2024-11-09 06:06:40,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:06:40,738 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 [2024-11-09 06:06:40,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:06:40,743 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:06:40,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:06:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:06:40,987 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:06:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:06:41,111 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 06:06:41,114 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:06:41,115 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 06:06:41,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 06:06:41,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 06:06:41,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:06:41,323 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:06:41,349 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:06:41,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:06:41 BoogieIcfgContainer [2024-11-09 06:06:41,352 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:06:41,353 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:06:41,354 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:06:41,354 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:06:41,355 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:06:40" (3/4) ... [2024-11-09 06:06:41,358 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:06:41,359 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:06:41,361 INFO L158 Benchmark]: Toolchain (without parser) took 3311.63ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 41.9MB in the beginning and 38.3MB in the end (delta: 3.6MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2024-11-09 06:06:41,362 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 50.3MB. Free memory was 26.2MB in the beginning and 26.2MB in the end (delta: 12.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:06:41,363 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1741.08ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 41.7MB in the beginning and 52.9MB in the end (delta: -11.2MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2024-11-09 06:06:41,363 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.39ms. Allocated memory is still 92.3MB. Free memory was 52.9MB in the beginning and 49.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:06:41,364 INFO L158 Benchmark]: Boogie Preprocessor took 44.15ms. Allocated memory is still 92.3MB. Free memory was 49.5MB in the beginning and 47.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:06:41,365 INFO L158 Benchmark]: RCFGBuilder took 639.16ms. Allocated memory is still 92.3MB. Free memory was 47.5MB in the beginning and 58.2MB in the end (delta: -10.6MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2024-11-09 06:06:41,366 INFO L158 Benchmark]: TraceAbstraction took 809.95ms. Allocated memory is still 92.3MB. Free memory was 57.1MB in the beginning and 38.8MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 06:06:41,366 INFO L158 Benchmark]: Witness Printer took 6.08ms. Allocated memory is still 92.3MB. Free memory was 38.8MB in the beginning and 38.3MB in the end (delta: 533.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:06:41,370 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 50.3MB. Free memory was 26.2MB in the beginning and 26.2MB in the end (delta: 12.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1741.08ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 41.7MB in the beginning and 52.9MB in the end (delta: -11.2MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.39ms. Allocated memory is still 92.3MB. Free memory was 52.9MB in the beginning and 49.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.15ms. Allocated memory is still 92.3MB. Free memory was 49.5MB in the beginning and 47.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 639.16ms. Allocated memory is still 92.3MB. Free memory was 47.5MB in the beginning and 58.2MB in the end (delta: -10.6MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * TraceAbstraction took 809.95ms. Allocated memory is still 92.3MB. Free memory was 57.1MB in the beginning and 38.8MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 6.08ms. Allocated memory is still 92.3MB. Free memory was 38.8MB in the beginning and 38.3MB in the end (delta: 533.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1562]: 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 1571. 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] [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, dataPtr1={3:0}, dataPtr2={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] *dataPtr1 = data [L1560] EXPR \read(*dataPtr2) [L1560] int data = *dataPtr2; [L1562] --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] - UnprovableResult [Line: 1562]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2024-11-09 06:06:41,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0347aefe-2e47-4a91-87f1-cd88a251bbad/bin/utaipan-verify-YMUCfTKeje/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