./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_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_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/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_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/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_d24751a7-672a-40ed-937d-84cc0f23dcbc/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 bef1dab6b24ebb18f2980915f8144943d6aa96ed337433b38a571608a8afe6f9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:51:22,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:51:22,330 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-24 23:51:22,335 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:51:22,336 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:51:22,378 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:51:22,379 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:51:22,380 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:51:22,381 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:51:22,386 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:51:22,386 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:51:22,387 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:51:22,388 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:51:22,390 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:51:22,390 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:51:22,390 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:51:22,391 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:51:22,391 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:51:22,392 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:51:22,392 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:51:22,393 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:51:22,393 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:51:22,394 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:51:22,395 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:51:22,395 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:51:22,395 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:51:22,396 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:51:22,396 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:51:22,397 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:51:22,397 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:51:22,398 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:51:22,398 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:51:22,399 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:51:22,399 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:51:22,399 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:51:22,399 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:51:22,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:51:22,400 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:51:22,400 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:51:22,401 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:51:22,401 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:51:22,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:51:22,405 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:51:22,405 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:51:22,406 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:51:22,406 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:51:22,407 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_d24751a7-672a-40ed-937d-84cc0f23dcbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bef1dab6b24ebb18f2980915f8144943d6aa96ed337433b38a571608a8afe6f9 [2023-11-24 23:51:22,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:51:22,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:51:22,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:51:22,741 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:51:22,742 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:51:22,744 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_51_bad.i [2023-11-24 23:51:25,851 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:51:26,307 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:51:26,307 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_51_bad.i [2023-11-24 23:51:26,344 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/data/b17a4bf8a/ccfc616107d14a6daa43d65211fbe7cb/FLAG92a783613 [2023-11-24 23:51:26,361 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/data/b17a4bf8a/ccfc616107d14a6daa43d65211fbe7cb [2023-11-24 23:51:26,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:51:26,369 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:51:26,377 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:51:26,377 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:51:26,383 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:51:26,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:51:26" (1/1) ... [2023-11-24 23:51:26,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@497f6146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:26, skipping insertion in model container [2023-11-24 23:51:26,385 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:51:26" (1/1) ... [2023-11-24 23:51:26,459 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:51:27,518 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:51:27,529 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:51:27,626 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:51:27,786 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:51:27,788 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:51:27,788 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:51:27,788 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:51:27,797 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:51:27,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27 WrapperNode [2023-11-24 23:51:27,798 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:51:27,800 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:51:27,800 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:51:27,800 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:51:27,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,869 INFO L138 Inliner]: procedures = 499, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 92 [2023-11-24 23:51:27,869 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:51:27,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:51:27,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:51:27,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:51:27,889 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,899 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,899 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,906 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,911 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,913 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,921 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:51:27,922 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:51:27,922 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:51:27,922 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:51:27,923 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (1/1) ... [2023-11-24 23:51:27,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:51:27,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:51:27,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:51:28,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:51:28,026 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 23:51:28,026 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 23:51:28,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:51:28,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:51:28,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:51:28,029 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 23:51:28,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:51:28,241 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:51:28,244 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:51:28,507 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:51:28,808 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:51:28,808 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:51:28,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:28 BoogieIcfgContainer [2023-11-24 23:51:28,810 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:51:28,811 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:51:28,811 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:51:28,815 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:51:28,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:51:26" (1/3) ... [2023-11-24 23:51:28,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e4732c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:51:28, skipping insertion in model container [2023-11-24 23:51:28,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:27" (2/3) ... [2023-11-24 23:51:28,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e4732c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:51:28, skipping insertion in model container [2023-11-24 23:51:28,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:28" (3/3) ... [2023-11-24 23:51:28,822 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_51_bad.i [2023-11-24 23:51:28,843 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:51:28,843 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-24 23:51:28,904 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:51:28,913 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;@2e1d30fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:51:28,914 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-24 23:51:28,918 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 23:51:28,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:51:28,927 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:51:28,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:51:28,929 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-24 23:51:28,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:51:28,941 INFO L85 PathProgramCache]: Analyzing trace with hash -2136367513, now seen corresponding path program 1 times [2023-11-24 23:51:28,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:51:28,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969483543] [2023-11-24 23:51:28,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:28,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:51:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:51:29,416 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:51:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:51:29,638 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:51:29,640 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:51:29,641 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-24 23:51:29,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-24 23:51:29,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:51:29,650 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:51:29,654 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:51:29,672 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet111 [2023-11-24 23:51:29,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:51:29 BoogieIcfgContainer [2023-11-24 23:51:29,688 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:51:29,690 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:51:29,690 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:51:29,691 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:51:29,691 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:28" (3/4) ... [2023-11-24 23:51:29,693 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:51:29,695 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:51:29,696 INFO L158 Benchmark]: Toolchain (without parser) took 3326.75ms. Allocated memory is still 146.8MB. Free memory was 98.0MB in the beginning and 57.5MB in the end (delta: 40.5MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. [2023-11-24 23:51:29,697 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 146.8MB. Free memory is still 119.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:51:29,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1422.12ms. Allocated memory is still 146.8MB. Free memory was 97.8MB in the beginning and 97.3MB in the end (delta: 498.5kB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB. [2023-11-24 23:51:29,699 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.73ms. Allocated memory is still 146.8MB. Free memory was 97.3MB in the beginning and 94.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:51:29,700 INFO L158 Benchmark]: Boogie Preprocessor took 51.00ms. Allocated memory is still 146.8MB. Free memory was 94.3MB in the beginning and 92.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:51:29,705 INFO L158 Benchmark]: RCFGBuilder took 887.82ms. Allocated memory is still 146.8MB. Free memory was 92.6MB in the beginning and 115.0MB in the end (delta: -22.4MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. [2023-11-24 23:51:29,706 INFO L158 Benchmark]: TraceAbstraction took 877.27ms. Allocated memory is still 146.8MB. Free memory was 114.1MB in the beginning and 57.5MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2023-11-24 23:51:29,706 INFO L158 Benchmark]: Witness Printer took 4.70ms. Allocated memory is still 146.8MB. Free memory was 57.5MB in the beginning and 57.5MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:51:29,717 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 146.8MB. Free memory is still 119.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1422.12ms. Allocated memory is still 146.8MB. Free memory was 97.8MB in the beginning and 97.3MB in the end (delta: 498.5kB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.73ms. Allocated memory is still 146.8MB. Free memory was 97.3MB in the beginning and 94.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.00ms. Allocated memory is still 146.8MB. Free memory was 94.3MB in the beginning and 92.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 887.82ms. Allocated memory is still 146.8MB. Free memory was 92.6MB in the beginning and 115.0MB in the end (delta: -22.4MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. * TraceAbstraction took 877.27ms. Allocated memory is still 146.8MB. Free memory was 114.1MB in the beginning and 57.5MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Witness Printer took 4.70ms. Allocated memory is still 146.8MB. Free memory was 57.5MB in the beginning and 57.5MB in the end (delta: 2.7kB). 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~nondet111 - 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: 1568]: 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, overapproximation of bitwiseOr at line 1553. 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)=2147483649, argc=2147483649, argv={2147483651:2147483650}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_rand_multiply_51_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1553] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_multiply_51b_badSink(data) [L1566] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1568]: 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: 0.8s, 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=14occurred 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, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 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 [2023-11-24 23:51:29,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/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 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_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/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_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/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_d24751a7-672a-40ed-937d-84cc0f23dcbc/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 bef1dab6b24ebb18f2980915f8144943d6aa96ed337433b38a571608a8afe6f9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:51:32,566 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:51:32,697 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-24 23:51:32,706 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:51:32,707 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:51:32,755 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:51:32,756 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:51:32,757 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:51:32,758 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:51:32,763 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:51:32,763 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:51:32,764 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:51:32,764 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:51:32,766 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:51:32,767 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:51:32,767 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:51:32,768 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:51:32,769 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:51:32,770 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:51:32,771 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:51:32,771 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:51:32,772 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:51:32,772 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:51:32,773 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:51:32,773 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:51:32,774 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:51:32,774 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:51:32,775 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:51:32,775 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:51:32,776 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:51:32,777 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:51:32,777 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:51:32,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:51:32,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:51:32,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:51:32,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:51:32,779 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:51:32,780 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:51:32,780 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:51:32,781 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:51:32,781 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:51:32,782 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:51:32,782 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:51:32,782 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_d24751a7-672a-40ed-937d-84cc0f23dcbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bef1dab6b24ebb18f2980915f8144943d6aa96ed337433b38a571608a8afe6f9 [2023-11-24 23:51:33,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:51:33,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:51:33,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:51:33,244 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:51:33,245 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:51:33,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_51_bad.i [2023-11-24 23:51:36,467 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:51:36,889 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:51:36,890 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_51_bad.i [2023-11-24 23:51:36,929 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/data/68791c7f1/63d9f40af666436c98f3c910cd216145/FLAG1b1097824 [2023-11-24 23:51:36,945 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/data/68791c7f1/63d9f40af666436c98f3c910cd216145 [2023-11-24 23:51:36,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:51:36,950 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:51:36,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:51:36,952 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:51:36,957 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:51:36,958 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:51:36" (1/1) ... [2023-11-24 23:51:36,959 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37861b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:36, skipping insertion in model container [2023-11-24 23:51:36,959 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:51:36" (1/1) ... [2023-11-24 23:51:37,018 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:51:38,172 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:51:38,200 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:51:38,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:51:38,517 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:51:38,517 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:51:38,517 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:51:38,518 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:51:38,527 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:51:38,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:38 WrapperNode [2023-11-24 23:51:38,528 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:51:38,529 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:51:38,530 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:51:38,531 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:51:38,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:38" (1/1) ... [2023-11-24 23:51:38,587 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:38" (1/1) ... [2023-11-24 23:51:38,616 INFO L138 Inliner]: procedures = 504, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2023-11-24 23:51:38,617 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:51:38,618 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:51:38,618 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:51:38,618 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:51:38,629 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:38" (1/1) ... [2023-11-24 23:51:38,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:38" (1/1) ... [2023-11-24 23:51:38,643 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:38" (1/1) ... [2023-11-24 23:51:38,643 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:38" (1/1) ... [2023-11-24 23:51:38,670 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:38" (1/1) ... [2023-11-24 23:51:38,672 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:38" (1/1) ... [2023-11-24 23:51:38,676 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:38" (1/1) ... [2023-11-24 23:51:38,678 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:38" (1/1) ... [2023-11-24 23:51:38,683 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:51:38,684 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:51:38,700 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:51:38,700 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:51:38,701 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:38" (1/1) ... [2023-11-24 23:51:38,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:51:38,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:51:38,773 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:51:38,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:51:38,821 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 23:51:38,821 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 23:51:38,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:51:38,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:51:38,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:51:38,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:51:38,822 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 23:51:39,026 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:51:39,029 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:51:39,186 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:51:39,263 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:51:39,263 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:51:39,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:39 BoogieIcfgContainer [2023-11-24 23:51:39,264 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:51:39,266 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:51:39,266 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:51:39,273 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:51:39,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:51:36" (1/3) ... [2023-11-24 23:51:39,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da1c1e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:51:39, skipping insertion in model container [2023-11-24 23:51:39,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:38" (2/3) ... [2023-11-24 23:51:39,277 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da1c1e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:51:39, skipping insertion in model container [2023-11-24 23:51:39,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:39" (3/3) ... [2023-11-24 23:51:39,280 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_51_bad.i [2023-11-24 23:51:39,316 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:51:39,317 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-24 23:51:39,389 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:51:39,397 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;@3108a2c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:51:39,397 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-24 23:51:39,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 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 23:51:39,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 23:51:39,415 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:51:39,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:51:39,416 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-24 23:51:39,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:51:39,424 INFO L85 PathProgramCache]: Analyzing trace with hash -455449041, now seen corresponding path program 1 times [2023-11-24 23:51:39,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:51:39,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1453141846] [2023-11-24 23:51:39,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:39,448 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 23:51:39,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:51:39,452 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/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 23:51:39,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/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 23:51:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:51:39,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:51:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:51:39,635 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-24 23:51:39,637 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:51:39,638 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-24 23:51:39,640 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-24 23:51:39,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/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 23:51:39,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/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 23:51:39,856 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:51:39,861 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:51:39,897 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet105 [2023-11-24 23:51:39,900 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet100 could not be translated [2023-11-24 23:51:39,900 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet96 could not be translated [2023-11-24 23:51:39,901 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated [2023-11-24 23:51:39,901 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated [2023-11-24 23:51:39,901 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated [2023-11-24 23:51:39,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:51:39 BoogieIcfgContainer [2023-11-24 23:51:39,914 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:51:39,916 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:51:39,917 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:51:39,917 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:51:39,917 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:39" (3/4) ... [2023-11-24 23:51:39,920 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:51:39,921 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:51:39,923 INFO L158 Benchmark]: Toolchain (without parser) took 2972.83ms. Allocated memory is still 96.5MB. Free memory was 68.4MB in the beginning and 53.3MB in the end (delta: 15.1MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2023-11-24 23:51:39,924 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 69.2MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:51:39,925 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1577.10ms. Allocated memory is still 96.5MB. Free memory was 68.4MB in the beginning and 61.0MB in the end (delta: 7.3MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2023-11-24 23:51:39,926 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.96ms. Allocated memory is still 96.5MB. Free memory was 61.0MB in the beginning and 58.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:51:39,932 INFO L158 Benchmark]: Boogie Preprocessor took 65.25ms. Allocated memory is still 96.5MB. Free memory was 58.0MB in the beginning and 55.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:51:39,933 INFO L158 Benchmark]: RCFGBuilder took 579.96ms. Allocated memory is still 96.5MB. Free memory was 55.9MB in the beginning and 40.8MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 23:51:39,933 INFO L158 Benchmark]: TraceAbstraction took 648.30ms. Allocated memory is still 96.5MB. Free memory was 39.6MB in the beginning and 53.3MB in the end (delta: -13.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:51:39,935 INFO L158 Benchmark]: Witness Printer took 5.04ms. Allocated memory is still 96.5MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:51:39,945 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 69.2MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1577.10ms. Allocated memory is still 96.5MB. Free memory was 68.4MB in the beginning and 61.0MB in the end (delta: 7.3MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.96ms. Allocated memory is still 96.5MB. Free memory was 61.0MB in the beginning and 58.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.25ms. Allocated memory is still 96.5MB. Free memory was 58.0MB in the beginning and 55.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 579.96ms. Allocated memory is still 96.5MB. Free memory was 55.9MB in the beginning and 40.8MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 648.30ms. Allocated memory is still 96.5MB. Free memory was 39.6MB in the beginning and 53.3MB in the end (delta: -13.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.04ms. Allocated memory is still 96.5MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet105 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet96 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1568]: 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 CWE191_Integer_Underflow__int_rand_multiply_51_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] 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, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_multiply_51b_badSink(data) [L1566] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1568]: 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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=18occurred 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, 0.0s 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 [2023-11-24 23:51:39,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d24751a7-672a-40ed-937d-84cc0f23dcbc/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