./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_61_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh --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 b2807a4cc87786940a61af69cc55473e7904a8c161f64abc11510e5a17174c28 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:16:33,560 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:16:33,623 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 14:16:33,627 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:16:33,628 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:16:33,651 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:16:33,651 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:16:33,652 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:16:33,652 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:16:33,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:16:33,654 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:16:33,654 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:16:33,654 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:16:33,655 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:16:33,655 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:16:33,656 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:16:33,657 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:16:33,657 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:16:33,658 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:16:33,658 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:16:33,659 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:16:33,659 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:16:33,660 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:16:33,661 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:16:33,661 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:16:33,661 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:16:33,662 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:16:33,662 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:16:33,663 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:16:33,663 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 14:16:33,663 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 14:16:33,664 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:16:33,664 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:16:33,664 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:16:33,665 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:16:33,665 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:16:33,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:16:33,665 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:16:33,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:16:33,665 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:16:33,666 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:16:33,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:16:33,666 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:16:33,666 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:16:33,666 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:16:33,667 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:16:33,667 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_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2807a4cc87786940a61af69cc55473e7904a8c161f64abc11510e5a17174c28 [2023-12-02 14:16:33,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:16:33,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:16:33,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:16:33,918 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:16:33,919 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:16:33,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_61_bad.i [2023-12-02 14:16:36,604 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:16:36,919 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:16:36,920 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_61_bad.i [2023-12-02 14:16:36,943 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/data/0f8b3aecf/ac7ef601694548cea6e470961a951905/FLAG7f5b0c25f [2023-12-02 14:16:36,957 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/data/0f8b3aecf/ac7ef601694548cea6e470961a951905 [2023-12-02 14:16:36,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:16:36,961 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:16:36,962 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:16:36,962 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:16:36,967 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:16:36,968 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:16:36" (1/1) ... [2023-12-02 14:16:36,969 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ac49be6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:36, skipping insertion in model container [2023-12-02 14:16:36,969 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:16:36" (1/1) ... [2023-12-02 14:16:37,032 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:16:37,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:16:37,725 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:16:37,804 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:16:37,925 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:16:37,925 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:16:37,925 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:16:37,925 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:16:37,933 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:16:37,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:37 WrapperNode [2023-12-02 14:16:37,934 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:16:37,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:16:37,935 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:16:37,935 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:16:37,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:37" (1/1) ... [2023-12-02 14:16:37,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:37" (1/1) ... [2023-12-02 14:16:37,996 INFO L138 Inliner]: procedures = 499, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 97 [2023-12-02 14:16:37,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:16:37,997 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:16:37,997 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:16:37,997 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:16:38,007 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:37" (1/1) ... [2023-12-02 14:16:38,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:37" (1/1) ... [2023-12-02 14:16:38,011 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:37" (1/1) ... [2023-12-02 14:16:38,012 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:37" (1/1) ... [2023-12-02 14:16:38,036 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:37" (1/1) ... [2023-12-02 14:16:38,039 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:37" (1/1) ... [2023-12-02 14:16:38,041 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:37" (1/1) ... [2023-12-02 14:16:38,043 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:37" (1/1) ... [2023-12-02 14:16:38,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:16:38,047 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:16:38,047 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:16:38,047 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:16:38,048 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:37" (1/1) ... [2023-12-02 14:16:38,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:16:38,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:16:38,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:16:38,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:16:38,109 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 14:16:38,109 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 14:16:38,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:16:38,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:16:38,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:16:38,109 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 14:16:38,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:16:38,248 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:16:38,250 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:16:38,419 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:16:38,599 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:16:38,600 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 14:16:38,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:16:38 BoogieIcfgContainer [2023-12-02 14:16:38,601 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:16:38,604 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:16:38,604 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:16:38,607 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:16:38,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:16:36" (1/3) ... [2023-12-02 14:16:38,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@323b0e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:16:38, skipping insertion in model container [2023-12-02 14:16:38,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:37" (2/3) ... [2023-12-02 14:16:38,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@323b0e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:16:38, skipping insertion in model container [2023-12-02 14:16:38,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:16:38" (3/3) ... [2023-12-02 14:16:38,610 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_61_bad.i [2023-12-02 14:16:38,629 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:16:38,629 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 14:16:38,668 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:16:38,673 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;@9bf238d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:16:38,673 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 14:16:38,676 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) [2023-12-02 14:16:38,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 14:16:38,682 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:16:38,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:16:38,683 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 14:16:38,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:16:38,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1243322642, now seen corresponding path program 1 times [2023-12-02 14:16:38,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:16:38,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140356178] [2023-12-02 14:16:38,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:16:38,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:16:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:16:38,928 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 14:16:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:16:39,052 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 14:16:39,054 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 14:16:39,055 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 14:16:39,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 14:16:39,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 14:16:39,062 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 14:16:39,066 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 14:16:39,080 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-12-02 14:16:39,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:16:39 BoogieIcfgContainer [2023-12-02 14:16:39,089 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 14:16:39,090 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 14:16:39,090 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 14:16:39,090 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 14:16:39,090 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:16:38" (3/4) ... [2023-12-02 14:16:39,092 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 14:16:39,093 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 14:16:39,095 INFO L158 Benchmark]: Toolchain (without parser) took 2133.68ms. Allocated memory is still 148.9MB. Free memory was 116.3MB in the beginning and 112.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2023-12-02 14:16:39,095 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 148.9MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:16:39,096 INFO L158 Benchmark]: CACSL2BoogieTranslator took 972.15ms. Allocated memory is still 148.9MB. Free memory was 115.7MB in the beginning and 52.1MB in the end (delta: 63.7MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-12-02 14:16:39,096 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.66ms. Allocated memory is still 148.9MB. Free memory was 52.1MB in the beginning and 48.3MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 14:16:39,097 INFO L158 Benchmark]: Boogie Preprocessor took 49.18ms. Allocated memory is still 148.9MB. Free memory was 48.3MB in the beginning and 119.3MB in the end (delta: -70.9MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2023-12-02 14:16:39,098 INFO L158 Benchmark]: RCFGBuilder took 554.52ms. Allocated memory is still 148.9MB. Free memory was 119.3MB in the beginning and 81.8MB in the end (delta: 37.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-12-02 14:16:39,098 INFO L158 Benchmark]: TraceAbstraction took 485.02ms. Allocated memory is still 148.9MB. Free memory was 81.0MB in the beginning and 113.8MB in the end (delta: -32.8MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2023-12-02 14:16:39,099 INFO L158 Benchmark]: Witness Printer took 4.04ms. Allocated memory is still 148.9MB. Free memory was 113.8MB in the beginning and 112.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:16:39,102 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 148.9MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 972.15ms. Allocated memory is still 148.9MB. Free memory was 115.7MB in the beginning and 52.1MB in the end (delta: 63.7MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.66ms. Allocated memory is still 148.9MB. Free memory was 52.1MB in the beginning and 48.3MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.18ms. Allocated memory is still 148.9MB. Free memory was 48.3MB in the beginning and 119.3MB in the end (delta: -70.9MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * RCFGBuilder took 554.52ms. Allocated memory is still 148.9MB. Free memory was 119.3MB in the beginning and 81.8MB in the end (delta: 37.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 485.02ms. Allocated memory is still 148.9MB. Free memory was 81.0MB in the beginning and 113.8MB in the end (delta: -32.8MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. * Witness Printer took 4.04ms. Allocated memory is still 148.9MB. Free memory was 113.8MB in the beginning and 112.8MB 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet100 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1556]: 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 1563, overapproximation of bitwiseOr at line 1570. 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); [L1563] 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) [L1563] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=3221225472, argc=3221225472, argv={3221225474:3221225473}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL CWE191_Integer_Underflow__int_rand_multiply_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_rand_multiply_61b_badSource(data) [L1570] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1570] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1570] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1570] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1570] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1571] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_rand_multiply_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_rand_multiply_61b_badSource(data) [L1554] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1556]: 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: 0.4s, 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, 0.1s 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 [2023-12-02 14:16:39,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh --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 b2807a4cc87786940a61af69cc55473e7904a8c161f64abc11510e5a17174c28 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:16:41,027 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:16:41,108 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-12-02 14:16:41,114 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:16:41,115 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:16:41,143 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:16:41,143 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:16:41,144 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:16:41,145 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:16:41,145 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:16:41,146 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:16:41,146 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:16:41,147 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:16:41,147 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:16:41,148 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:16:41,148 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:16:41,149 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:16:41,150 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:16:41,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:16:41,151 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:16:41,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:16:41,152 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:16:41,152 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 14:16:41,153 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 14:16:41,153 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 14:16:41,154 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 14:16:41,154 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 14:16:41,154 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:16:41,155 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:16:41,155 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:16:41,156 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 14:16:41,156 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:16:41,156 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:16:41,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:16:41,157 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:16:41,157 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:16:41,157 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:16:41,158 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 14:16:41,158 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 14:16:41,158 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:16:41,158 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:16:41,159 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:16:41,159 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:16:41,159 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_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2807a4cc87786940a61af69cc55473e7904a8c161f64abc11510e5a17174c28 [2023-12-02 14:16:41,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:16:41,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:16:41,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:16:41,457 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:16:41,458 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:16:41,459 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_61_bad.i [2023-12-02 14:16:44,289 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:16:44,616 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:16:44,617 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_61_bad.i [2023-12-02 14:16:44,641 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/data/cd3f444a6/fe977c4aa36c4592960d3c27e7d0a46e/FLAG1eef2c0fe [2023-12-02 14:16:44,656 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/data/cd3f444a6/fe977c4aa36c4592960d3c27e7d0a46e [2023-12-02 14:16:44,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:16:44,660 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:16:44,661 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:16:44,661 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:16:44,666 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:16:44,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:16:44" (1/1) ... [2023-12-02 14:16:44,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5852faec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:44, skipping insertion in model container [2023-12-02 14:16:44,669 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:16:44" (1/1) ... [2023-12-02 14:16:44,739 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:16:45,494 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:16:45,508 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:16:45,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:16:45,681 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:16:45,681 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:16:45,682 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:16:45,682 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:16:45,687 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:16:45,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:45 WrapperNode [2023-12-02 14:16:45,688 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:16:45,689 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:16:45,689 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:16:45,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:16:45,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:45" (1/1) ... [2023-12-02 14:16:45,723 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:45" (1/1) ... [2023-12-02 14:16:45,747 INFO L138 Inliner]: procedures = 504, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 64 [2023-12-02 14:16:45,747 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:16:45,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:16:45,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:16:45,749 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:16:45,755 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:45" (1/1) ... [2023-12-02 14:16:45,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:45" (1/1) ... [2023-12-02 14:16:45,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:45" (1/1) ... [2023-12-02 14:16:45,760 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:45" (1/1) ... [2023-12-02 14:16:45,768 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:45" (1/1) ... [2023-12-02 14:16:45,770 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:45" (1/1) ... [2023-12-02 14:16:45,773 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:45" (1/1) ... [2023-12-02 14:16:45,775 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:45" (1/1) ... [2023-12-02 14:16:45,778 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:16:45,779 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:16:45,779 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:16:45,779 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:16:45,780 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:45" (1/1) ... [2023-12-02 14:16:45,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:16:45,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:16:45,804 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:16:45,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:16:45,843 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 14:16:45,843 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 14:16:45,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 14:16:45,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:16:45,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:16:45,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:16:45,844 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 14:16:45,993 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:16:45,995 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:16:46,114 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:16:46,145 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:16:46,145 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 14:16:46,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:16:46 BoogieIcfgContainer [2023-12-02 14:16:46,146 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:16:46,149 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:16:46,149 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:16:46,152 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:16:46,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:16:44" (1/3) ... [2023-12-02 14:16:46,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67aa2729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:16:46, skipping insertion in model container [2023-12-02 14:16:46,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:45" (2/3) ... [2023-12-02 14:16:46,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67aa2729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:16:46, skipping insertion in model container [2023-12-02 14:16:46,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:16:46" (3/3) ... [2023-12-02 14:16:46,155 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_61_bad.i [2023-12-02 14:16:46,183 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:16:46,183 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 14:16:46,227 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:16:46,233 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;@14df6a61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:16:46,234 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 14:16:46,238 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) [2023-12-02 14:16:46,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 14:16:46,245 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:16:46,246 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:16:46,246 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 14:16:46,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:16:46,252 INFO L85 PathProgramCache]: Analyzing trace with hash -455424952, now seen corresponding path program 1 times [2023-12-02 14:16:46,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:16:46,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [951033959] [2023-12-02 14:16:46,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:16:46,265 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 [2023-12-02 14:16:46,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:16:46,268 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 14:16:46,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 14:16:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:16:46,393 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 14:16:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:16:46,454 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-12-02 14:16:46,456 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 14:16:46,457 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 14:16:46,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 14:16:46,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 14:16:46,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 14:16:46,664 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 14:16:46,667 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 14:16:46,682 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet98 [2023-12-02 14:16:46,685 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet100 could not be translated [2023-12-02 14:16:46,685 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet104 could not be translated [2023-12-02 14:16:46,685 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet105 could not be translated [2023-12-02 14:16:46,685 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite107 could not be translated [2023-12-02 14:16:46,685 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet106 could not be translated [2023-12-02 14:16:46,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:16:46 BoogieIcfgContainer [2023-12-02 14:16:46,692 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 14:16:46,693 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 14:16:46,693 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 14:16:46,693 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 14:16:46,693 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:16:46" (3/4) ... [2023-12-02 14:16:46,695 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 14:16:46,696 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 14:16:46,697 INFO L158 Benchmark]: Toolchain (without parser) took 2037.33ms. Allocated memory is still 102.8MB. Free memory was 75.3MB in the beginning and 58.5MB in the end (delta: 16.8MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2023-12-02 14:16:46,697 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:16:46,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1026.91ms. Allocated memory is still 102.8MB. Free memory was 75.1MB in the beginning and 65.2MB in the end (delta: 9.8MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2023-12-02 14:16:46,698 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.57ms. Allocated memory is still 102.8MB. Free memory was 65.2MB in the beginning and 62.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:16:46,699 INFO L158 Benchmark]: Boogie Preprocessor took 29.87ms. Allocated memory is still 102.8MB. Free memory was 62.1MB in the beginning and 60.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:16:46,700 INFO L158 Benchmark]: RCFGBuilder took 367.45ms. Allocated memory is still 102.8MB. Free memory was 60.0MB in the beginning and 44.3MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 14:16:46,700 INFO L158 Benchmark]: TraceAbstraction took 543.17ms. Allocated memory is still 102.8MB. Free memory was 43.8MB in the beginning and 59.1MB in the end (delta: -15.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:16:46,701 INFO L158 Benchmark]: Witness Printer took 3.74ms. Allocated memory is still 102.8MB. Free memory was 59.1MB in the beginning and 58.5MB in the end (delta: 605.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:16:46,704 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1026.91ms. Allocated memory is still 102.8MB. Free memory was 75.1MB in the beginning and 65.2MB in the end (delta: 9.8MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.57ms. Allocated memory is still 102.8MB. Free memory was 65.2MB in the beginning and 62.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.87ms. Allocated memory is still 102.8MB. Free memory was 62.1MB in the beginning and 60.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 367.45ms. Allocated memory is still 102.8MB. Free memory was 60.0MB in the beginning and 44.3MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 543.17ms. Allocated memory is still 102.8MB. Free memory was 43.8MB in the beginning and 59.1MB in the end (delta: -15.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.74ms. Allocated memory is still 102.8MB. Free memory was 59.1MB in the beginning and 58.5MB in the end (delta: 605.0kB). 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~nondet98 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet104 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet105 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite107 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet106 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: 1556]: 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 1563. 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); [L1563] 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) [L1563] 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] [L1564] CALL CWE191_Integer_Underflow__int_rand_multiply_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_rand_multiply_61b_badSource(data) [L1570] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1570] 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, \old(data)=0, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1571] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_rand_multiply_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_rand_multiply_61b_badSource(data) [L1554] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1556]: 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 [2023-12-02 14:16:46,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54232394-f347-414d-a11e-bc48d2324dce/bin/utaipan-verify-nQ1chXbOIh/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample