./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_64_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_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/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_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/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_49fcda0a-81eb-4662-a276-5166769bd878/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 8ee7f8fb024522f94fe2d93950e7d5f7b56bea1019427e75a0d74f3e8129f230 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 08:33:53,363 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 08:33:53,432 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 08:33:53,438 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 08:33:53,439 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 08:33:53,474 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 08:33:53,474 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 08:33:53,475 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 08:33:53,476 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 08:33:53,476 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 08:33:53,477 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 08:33:53,477 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 08:33:53,478 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 08:33:53,478 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 08:33:53,479 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 08:33:53,479 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 08:33:53,480 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 08:33:53,480 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 08:33:53,481 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 08:33:53,481 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 08:33:53,482 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 08:33:53,482 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 08:33:53,489 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 08:33:53,489 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 08:33:53,490 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 08:33:53,490 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 08:33:53,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 08:33:53,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 08:33:53,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 08:33:53,492 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 08:33:53,492 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 08:33:53,493 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 08:33:53,493 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 08:33:53,493 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 08:33:53,493 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 08:33:53,494 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 08:33:53,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:33:53,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 08:33:53,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 08:33:53,494 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 08:33:53,495 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 08:33:53,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 08:33:53,495 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 08:33:53,495 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 08:33:53,496 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 08:33:53,496 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 08:33:53,496 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_49fcda0a-81eb-4662-a276-5166769bd878/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ee7f8fb024522f94fe2d93950e7d5f7b56bea1019427e75a0d74f3e8129f230 [2023-12-02 08:33:53,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 08:33:53,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 08:33:53,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 08:33:53,762 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 08:33:53,763 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 08:33:53,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_64_bad.i [2023-12-02 08:33:56,422 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 08:33:56,735 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 08:33:56,735 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_64_bad.i [2023-12-02 08:33:56,759 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/data/fa4c5b151/87950b8f324849ae84a9cd1e5ca1cf22/FLAGf00b175d0 [2023-12-02 08:33:56,773 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/data/fa4c5b151/87950b8f324849ae84a9cd1e5ca1cf22 [2023-12-02 08:33:56,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 08:33:56,777 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 08:33:56,778 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 08:33:56,778 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 08:33:56,783 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 08:33:56,784 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:33:56" (1/1) ... [2023-12-02 08:33:56,785 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e11c89f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:56, skipping insertion in model container [2023-12-02 08:33:56,785 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:33:56" (1/1) ... [2023-12-02 08:33:56,853 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 08:33:57,619 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:33:57,630 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 08:33:57,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:33:57,856 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:33:57,857 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:33:57,857 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:33:57,857 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:33:57,865 INFO L206 MainTranslator]: Completed translation [2023-12-02 08:33:57,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:57 WrapperNode [2023-12-02 08:33:57,865 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 08:33:57,866 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 08:33:57,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 08:33:57,866 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 08:33:57,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:57" (1/1) ... [2023-12-02 08:33:57,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:57" (1/1) ... [2023-12-02 08:33:57,925 INFO L138 Inliner]: procedures = 499, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 100 [2023-12-02 08:33:57,926 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 08:33:57,927 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 08:33:57,927 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 08:33:57,927 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 08:33:57,936 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:57" (1/1) ... [2023-12-02 08:33:57,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:57" (1/1) ... [2023-12-02 08:33:57,941 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:57" (1/1) ... [2023-12-02 08:33:57,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:57" (1/1) ... [2023-12-02 08:33:57,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:57" (1/1) ... [2023-12-02 08:33:57,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:57" (1/1) ... [2023-12-02 08:33:57,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:57" (1/1) ... [2023-12-02 08:33:57,955 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:57" (1/1) ... [2023-12-02 08:33:57,958 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 08:33:57,959 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 08:33:57,959 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 08:33:57,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 08:33:57,960 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:57" (1/1) ... [2023-12-02 08:33:57,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:33:57,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:33:57,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 08:33:58,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 08:33:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 08:33:58,030 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 08:33:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 08:33:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 08:33:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 08:33:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 08:33:58,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 08:33:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 08:33:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 08:33:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 08:33:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 08:33:58,188 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 08:33:58,190 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 08:33:58,376 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 08:33:58,546 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 08:33:58,546 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 08:33:58,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:33:58 BoogieIcfgContainer [2023-12-02 08:33:58,548 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 08:33:58,550 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 08:33:58,550 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 08:33:58,552 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 08:33:58,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:33:56" (1/3) ... [2023-12-02 08:33:58,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637e5fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:33:58, skipping insertion in model container [2023-12-02 08:33:58,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:57" (2/3) ... [2023-12-02 08:33:58,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637e5fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:33:58, skipping insertion in model container [2023-12-02 08:33:58,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:33:58" (3/3) ... [2023-12-02 08:33:58,555 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_64_bad.i [2023-12-02 08:33:58,569 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 08:33:58,569 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 08:33:58,607 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 08:33:58,612 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;@4afbe0f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 08:33:58,612 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 08:33:58,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 08:33:58,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 08:33:58,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:33:58,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-02 08:33:58,622 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 08:33:58,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:33:58,626 INFO L85 PathProgramCache]: Analyzing trace with hash -216802539, now seen corresponding path program 1 times [2023-12-02 08:33:58,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:33:58,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647883638] [2023-12-02 08:33:58,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:33:58,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:33:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 08:33:58,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 08:33:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 08:33:59,017 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 08:33:59,019 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 08:33:59,020 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 08:33:59,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 08:33:59,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 08:33:59,027 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 08:33:59,031 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 08:33:59,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet111 [2023-12-02 08:33:59,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post114 could not be translated [2023-12-02 08:33:59,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:33:59 BoogieIcfgContainer [2023-12-02 08:33:59,057 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 08:33:59,057 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 08:33:59,058 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 08:33:59,058 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 08:33:59,058 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:33:58" (3/4) ... [2023-12-02 08:33:59,060 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 08:33:59,062 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 08:33:59,063 INFO L158 Benchmark]: Toolchain (without parser) took 2285.78ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 126.1MB in the beginning and 145.9MB in the end (delta: -19.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2023-12-02 08:33:59,063 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 121.6MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 08:33:59,064 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1087.49ms. Allocated memory is still 159.4MB. Free memory was 126.1MB in the beginning and 114.7MB in the end (delta: 11.4MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. [2023-12-02 08:33:59,064 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.89ms. Allocated memory is still 159.4MB. Free memory was 114.7MB in the beginning and 111.2MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 08:33:59,065 INFO L158 Benchmark]: Boogie Preprocessor took 31.84ms. Allocated memory is still 159.4MB. Free memory was 111.2MB in the beginning and 109.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 08:33:59,066 INFO L158 Benchmark]: RCFGBuilder took 588.73ms. Allocated memory is still 159.4MB. Free memory was 109.7MB in the beginning and 92.4MB in the end (delta: 17.3MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2023-12-02 08:33:59,066 INFO L158 Benchmark]: TraceAbstraction took 507.28ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 91.6MB in the beginning and 145.9MB in the end (delta: -54.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 08:33:59,067 INFO L158 Benchmark]: Witness Printer took 4.22ms. Allocated memory is still 192.9MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 08:33:59,070 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 121.6MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1087.49ms. Allocated memory is still 159.4MB. Free memory was 126.1MB in the beginning and 114.7MB in the end (delta: 11.4MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.89ms. Allocated memory is still 159.4MB. Free memory was 114.7MB in the beginning and 111.2MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.84ms. Allocated memory is still 159.4MB. Free memory was 111.2MB in the beginning and 109.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 588.73ms. Allocated memory is still 159.4MB. Free memory was 109.7MB in the beginning and 92.4MB in the end (delta: 17.3MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * TraceAbstraction took 507.28ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 91.6MB in the beginning and 145.9MB in the end (delta: -54.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.22ms. Allocated memory is still 192.9MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet111 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post114 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: 1569]: 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)=4294967299, argc=4294967299, argv={4294967303:4294967301}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_rand_postdec_64_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_postdec_64b_badSink(&data) [L1566] int * dataPtr = (int *)dataVoidPtr; [L1567] EXPR \read(*dataPtr) [L1567] int data = (*dataPtr); [L1569] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataPtr={5:0}, dataVoidPtr={5:0}, dataVoidPtr={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 08:33:59,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/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_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/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_49fcda0a-81eb-4662-a276-5166769bd878/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 8ee7f8fb024522f94fe2d93950e7d5f7b56bea1019427e75a0d74f3e8129f230 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 08:34:00,992 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 08:34:01,068 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-12-02 08:34:01,073 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 08:34:01,074 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 08:34:01,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 08:34:01,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 08:34:01,103 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 08:34:01,104 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 08:34:01,104 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 08:34:01,105 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 08:34:01,105 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 08:34:01,106 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 08:34:01,107 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 08:34:01,107 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 08:34:01,108 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 08:34:01,109 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 08:34:01,110 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 08:34:01,110 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 08:34:01,111 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 08:34:01,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 08:34:01,112 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 08:34:01,112 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 08:34:01,113 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 08:34:01,113 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 08:34:01,114 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 08:34:01,114 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 08:34:01,114 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 08:34:01,115 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 08:34:01,115 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 08:34:01,116 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 08:34:01,116 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 08:34:01,116 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 08:34:01,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:34:01,117 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 08:34:01,117 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 08:34:01,117 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 08:34:01,118 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 08:34:01,118 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 08:34:01,118 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 08:34:01,118 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 08:34:01,119 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 08:34:01,119 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 08:34:01,119 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_49fcda0a-81eb-4662-a276-5166769bd878/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ee7f8fb024522f94fe2d93950e7d5f7b56bea1019427e75a0d74f3e8129f230 [2023-12-02 08:34:01,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 08:34:01,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 08:34:01,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 08:34:01,435 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 08:34:01,435 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 08:34:01,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_64_bad.i [2023-12-02 08:34:04,156 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 08:34:04,473 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 08:34:04,474 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_64_bad.i [2023-12-02 08:34:04,497 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/data/4a56382a6/4e13c8c5955f45039ca1f60e299c4ebf/FLAG41b5cbd30 [2023-12-02 08:34:04,511 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/data/4a56382a6/4e13c8c5955f45039ca1f60e299c4ebf [2023-12-02 08:34:04,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 08:34:04,515 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 08:34:04,516 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 08:34:04,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 08:34:04,521 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 08:34:04,522 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:34:04" (1/1) ... [2023-12-02 08:34:04,523 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6608639c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:04, skipping insertion in model container [2023-12-02 08:34:04,524 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:34:04" (1/1) ... [2023-12-02 08:34:04,584 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 08:34:05,350 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:34:05,364 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 08:34:05,384 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 08:34:05,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:34:05,459 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 08:34:05,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:34:05,660 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:34:05,660 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:34:05,660 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:34:05,660 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:34:05,667 INFO L206 MainTranslator]: Completed translation [2023-12-02 08:34:05,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:05 WrapperNode [2023-12-02 08:34:05,667 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 08:34:05,668 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 08:34:05,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 08:34:05,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 08:34:05,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:05" (1/1) ... [2023-12-02 08:34:05,700 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:05" (1/1) ... [2023-12-02 08:34:05,724 INFO L138 Inliner]: procedures = 504, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2023-12-02 08:34:05,724 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 08:34:05,725 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 08:34:05,725 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 08:34:05,725 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 08:34:05,734 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:05" (1/1) ... [2023-12-02 08:34:05,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:05" (1/1) ... [2023-12-02 08:34:05,740 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:05" (1/1) ... [2023-12-02 08:34:05,740 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:05" (1/1) ... [2023-12-02 08:34:05,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:05" (1/1) ... [2023-12-02 08:34:05,753 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:05" (1/1) ... [2023-12-02 08:34:05,756 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:05" (1/1) ... [2023-12-02 08:34:05,758 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:05" (1/1) ... [2023-12-02 08:34:05,764 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 08:34:05,764 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 08:34:05,765 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 08:34:05,765 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 08:34:05,765 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:05" (1/1) ... [2023-12-02 08:34:05,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:34:05,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:34:05,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 08:34:05,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 08:34:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 08:34:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 08:34:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 08:34:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 08:34:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 08:34:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 08:34:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 08:34:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 08:34:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 08:34:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 08:34:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 08:34:05,994 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 08:34:05,996 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 08:34:06,163 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 08:34:06,198 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 08:34:06,198 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 08:34:06,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:34:06 BoogieIcfgContainer [2023-12-02 08:34:06,199 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 08:34:06,201 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 08:34:06,201 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 08:34:06,204 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 08:34:06,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:34:04" (1/3) ... [2023-12-02 08:34:06,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7559d141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:34:06, skipping insertion in model container [2023-12-02 08:34:06,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:34:05" (2/3) ... [2023-12-02 08:34:06,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7559d141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:34:06, skipping insertion in model container [2023-12-02 08:34:06,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:34:06" (3/3) ... [2023-12-02 08:34:06,207 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_64_bad.i [2023-12-02 08:34:06,226 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 08:34:06,226 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 08:34:06,272 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 08:34:06,279 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;@73ffb9bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 08:34:06,279 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 08:34:06,298 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 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 08:34:06,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 08:34:06,305 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:34:06,306 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 08:34:06,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 08:34:06,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:34:06,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1498898239, now seen corresponding path program 1 times [2023-12-02 08:34:06,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 08:34:06,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742750241] [2023-12-02 08:34:06,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:34:06,326 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 08:34:06,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 08:34:06,327 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/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 08:34:06,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/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 08:34:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 08:34:06,621 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 08:34:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 08:34:06,812 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-12-02 08:34:06,814 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 08:34:06,815 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 08:34:06,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 08:34:06,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/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 08:34:07,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/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 08:34:07,030 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 08:34:07,033 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 08:34:07,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet105 [2023-12-02 08:34:07,051 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated [2023-12-02 08:34:07,051 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated [2023-12-02 08:34:07,052 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet100 could not be translated [2023-12-02 08:34:07,052 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet96 could not be translated [2023-12-02 08:34:07,052 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated [2023-12-02 08:34:07,053 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post108 could not be translated [2023-12-02 08:34:07,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:34:07 BoogieIcfgContainer [2023-12-02 08:34:07,060 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 08:34:07,061 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 08:34:07,061 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 08:34:07,061 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 08:34:07,062 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:34:06" (3/4) ... [2023-12-02 08:34:07,064 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 08:34:07,065 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 08:34:07,066 INFO L158 Benchmark]: Toolchain (without parser) took 2551.15ms. Allocated memory is still 107.0MB. Free memory was 79.5MB in the beginning and 61.0MB in the end (delta: 18.5MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2023-12-02 08:34:07,067 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 71.3MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 08:34:07,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1151.05ms. Allocated memory is still 107.0MB. Free memory was 79.5MB in the beginning and 69.4MB in the end (delta: 10.1MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2023-12-02 08:34:07,068 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.47ms. Allocated memory is still 107.0MB. Free memory was 69.4MB in the beginning and 66.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 08:34:07,068 INFO L158 Benchmark]: Boogie Preprocessor took 38.87ms. Allocated memory is still 107.0MB. Free memory was 66.4MB in the beginning and 64.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 08:34:07,069 INFO L158 Benchmark]: RCFGBuilder took 434.28ms. Allocated memory is still 107.0MB. Free memory was 64.3MB in the beginning and 46.3MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 08:34:07,070 INFO L158 Benchmark]: TraceAbstraction took 859.43ms. Allocated memory is still 107.0MB. Free memory was 45.7MB in the beginning and 61.7MB in the end (delta: -15.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 08:34:07,070 INFO L158 Benchmark]: Witness Printer took 3.96ms. Allocated memory is still 107.0MB. Free memory was 61.7MB in the beginning and 61.0MB in the end (delta: 667.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 08:34:07,074 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 71.3MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1151.05ms. Allocated memory is still 107.0MB. Free memory was 79.5MB in the beginning and 69.4MB in the end (delta: 10.1MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.47ms. Allocated memory is still 107.0MB. Free memory was 69.4MB in the beginning and 66.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.87ms. Allocated memory is still 107.0MB. Free memory was 66.4MB in the beginning and 64.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 434.28ms. Allocated memory is still 107.0MB. Free memory was 64.3MB in the beginning and 46.3MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 859.43ms. Allocated memory is still 107.0MB. Free memory was 45.7MB in the beginning and 61.7MB in the end (delta: -15.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.96ms. Allocated memory is still 107.0MB. Free memory was 61.7MB in the beginning and 61.0MB in the end (delta: 667.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet105 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated - 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~ite103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post108 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: 1569]: 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_postdec_64_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={7:0}, 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_postdec_64b_badSink(&data) [L1566] int * dataPtr = (int *)dataVoidPtr; [L1567] EXPR \read(*dataPtr) [L1567] int data = (*dataPtr); [L1569] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataPtr={7:0}, dataVoidPtr={7:0}, dataVoidPtr={7:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 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=16occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 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 08:34:07,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49fcda0a-81eb-4662-a276-5166769bd878/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