./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_54_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_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/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_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/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_dd26d195-a574-44b5-85d2-32e00a0e6080/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 6e12c83a741f2f74b7643a0a316a10f646a065896e5e91a094b749a10d3e0bbd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:34:49,156 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:34:49,227 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 13:34:49,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:34:49,233 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:34:49,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:34:49,260 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:34:49,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:34:49,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:34:49,262 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:34:49,262 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:34:49,263 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:34:49,263 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:34:49,264 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:34:49,264 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:34:49,265 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:34:49,266 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:34:49,266 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:34:49,267 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:34:49,267 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:34:49,268 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:34:49,269 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:34:49,270 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:34:49,270 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:34:49,271 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:34:49,271 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:34:49,271 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:34:49,272 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:34:49,272 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:34:49,273 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 13:34:49,273 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 13:34:49,274 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:34:49,274 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:34:49,275 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:34:49,275 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:34:49,276 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:34:49,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:34:49,277 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:34:49,277 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:34:49,278 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:34:49,278 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:34:49,279 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:34:49,279 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:34:49,280 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:34:49,280 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:34:49,281 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:34:49,281 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_dd26d195-a574-44b5-85d2-32e00a0e6080/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e12c83a741f2f74b7643a0a316a10f646a065896e5e91a094b749a10d3e0bbd [2023-12-02 13:34:49,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:34:49,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:34:49,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:34:49,548 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:34:49,548 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:34:49,550 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_54_bad.i [2023-12-02 13:34:52,413 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:34:52,781 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:34:52,782 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_54_bad.i [2023-12-02 13:34:52,810 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/data/24aefafd3/e145d9aaabf54fea9995500540b55c8e/FLAG947840d75 [2023-12-02 13:34:52,826 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/data/24aefafd3/e145d9aaabf54fea9995500540b55c8e [2023-12-02 13:34:52,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:34:52,831 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:34:52,832 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:34:52,832 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:34:52,839 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:34:52,840 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:34:52" (1/1) ... [2023-12-02 13:34:52,842 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49abc78c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:52, skipping insertion in model container [2023-12-02 13:34:52,842 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:34:52" (1/1) ... [2023-12-02 13:34:52,911 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:34:53,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:34:53,785 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:34:53,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:34:53,994 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:34:53,994 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:34:53,994 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:34:53,994 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:34:54,000 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:34:54,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:54 WrapperNode [2023-12-02 13:34:54,000 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:34:54,001 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:34:54,001 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:34:54,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:34:54,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:54" (1/1) ... [2023-12-02 13:34:54,035 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:54" (1/1) ... [2023-12-02 13:34:54,060 INFO L138 Inliner]: procedures = 502, calls = 59, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 47 [2023-12-02 13:34:54,061 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:34:54,062 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:34:54,062 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:34:54,062 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:34:54,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:54" (1/1) ... [2023-12-02 13:34:54,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:54" (1/1) ... [2023-12-02 13:34:54,073 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:54" (1/1) ... [2023-12-02 13:34:54,073 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:54" (1/1) ... [2023-12-02 13:34:54,080 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:54" (1/1) ... [2023-12-02 13:34:54,082 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:54" (1/1) ... [2023-12-02 13:34:54,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:54" (1/1) ... [2023-12-02 13:34:54,085 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:54" (1/1) ... [2023-12-02 13:34:54,089 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:34:54,090 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:34:54,090 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:34:54,090 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:34:54,091 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:54" (1/1) ... [2023-12-02 13:34:54,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:34:54,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:34:54,124 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:34:54,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:34:54,161 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 13:34:54,162 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 13:34:54,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:34:54,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:34:54,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:34:54,162 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 13:34:54,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:34:54,298 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:34:54,300 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:34:54,404 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:34:54,451 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:34:54,451 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 13:34:54,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:34:54 BoogieIcfgContainer [2023-12-02 13:34:54,453 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:34:54,456 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:34:54,456 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:34:54,459 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:34:54,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:34:52" (1/3) ... [2023-12-02 13:34:54,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63fb58fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:34:54, skipping insertion in model container [2023-12-02 13:34:54,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:54" (2/3) ... [2023-12-02 13:34:54,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63fb58fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:34:54, skipping insertion in model container [2023-12-02 13:34:54,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:34:54" (3/3) ... [2023-12-02 13:34:54,462 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_sub_54_bad.i [2023-12-02 13:34:54,477 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:34:54,477 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 13:34:54,521 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:34:54,528 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;@44535bdf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:34:54,528 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 13:34:54,532 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 13:34:54,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 13:34:54,539 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:34:54,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-02 13:34:54,540 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 13:34:54,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:34:54,545 INFO L85 PathProgramCache]: Analyzing trace with hash 2122821516, now seen corresponding path program 1 times [2023-12-02 13:34:54,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:34:54,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587443779] [2023-12-02 13:34:54,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:34:54,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:34:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:34:54,667 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 13:34:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:34:54,714 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 13:34:54,715 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 13:34:54,716 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 13:34:54,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 13:34:54,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:34:54,723 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 13:34:54,728 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:34:54,741 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet99 [2023-12-02 13:34:54,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:34:54 BoogieIcfgContainer [2023-12-02 13:34:54,748 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:34:54,749 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:34:54,749 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:34:54,749 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:34:54,750 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:34:54" (3/4) ... [2023-12-02 13:34:54,752 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 13:34:54,753 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:34:54,754 INFO L158 Benchmark]: Toolchain (without parser) took 1923.76ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 61.9MB in the end (delta: 45.2MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2023-12-02 13:34:54,755 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:34:54,756 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1168.38ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 96.9MB in the end (delta: 9.8MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2023-12-02 13:34:54,756 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.86ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 94.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 13:34:54,757 INFO L158 Benchmark]: Boogie Preprocessor took 27.13ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 92.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:34:54,758 INFO L158 Benchmark]: RCFGBuilder took 363.98ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 78.7MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 13:34:54,758 INFO L158 Benchmark]: TraceAbstraction took 292.26ms. Allocated memory is still 142.6MB. Free memory was 77.9MB in the beginning and 62.6MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 13:34:54,759 INFO L158 Benchmark]: Witness Printer took 4.64ms. Allocated memory is still 142.6MB. Free memory was 62.6MB in the beginning and 61.9MB in the end (delta: 637.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:34:54,762 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1168.38ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 96.9MB in the end (delta: 9.8MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.86ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 94.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.13ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 92.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 363.98ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 78.7MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 292.26ms. Allocated memory is still 142.6MB. Free memory was 77.9MB in the beginning and 62.6MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.64ms. Allocated memory is still 142.6MB. Free memory was 62.6MB in the beginning and 61.9MB in the end (delta: 637.0kB). 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~nondet99 - 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: 1582]: 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)=1073741825, argc=1073741825, argv={1073741827:1073741826}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_min_sub_54_bad() [L1551] int data; [L1552] data = 0 [L1553] data = (-0x7fffffff - 1) [L1554] CALL CWE191_Integer_Underflow__int_min_sub_54b_badSink(data) [L1567] CALL CWE191_Integer_Underflow__int_min_sub_54c_badSink(data) [L1572] CALL CWE191_Integer_Underflow__int_min_sub_54d_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_min_sub_54e_badSink(data) [L1582] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1582]: 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: 0.2s, 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, 0.0s 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 13:34:54,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/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_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/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_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/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_dd26d195-a574-44b5-85d2-32e00a0e6080/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 6e12c83a741f2f74b7643a0a316a10f646a065896e5e91a094b749a10d3e0bbd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:34:56,843 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:34:56,914 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-12-02 13:34:56,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:34:56,921 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:34:56,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:34:56,947 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:34:56,947 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:34:56,948 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:34:56,948 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:34:56,949 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:34:56,950 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:34:56,950 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:34:56,950 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:34:56,951 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:34:56,951 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:34:56,952 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:34:56,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:34:56,953 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:34:56,954 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:34:56,955 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:34:56,955 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:34:56,956 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 13:34:56,956 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 13:34:56,956 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 13:34:56,957 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 13:34:56,957 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 13:34:56,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:34:56,958 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:34:56,958 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:34:56,959 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 13:34:56,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:34:56,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:34:56,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:34:56,960 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:34:56,961 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:34:56,961 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:34:56,961 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 13:34:56,961 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 13:34:56,961 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:34:56,962 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:34:56,962 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:34:56,962 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:34:56,962 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_dd26d195-a574-44b5-85d2-32e00a0e6080/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e12c83a741f2f74b7643a0a316a10f646a065896e5e91a094b749a10d3e0bbd [2023-12-02 13:34:57,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:34:57,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:34:57,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:34:57,282 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:34:57,283 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:34:57,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_54_bad.i [2023-12-02 13:35:00,161 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:35:00,502 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:35:00,503 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_54_bad.i [2023-12-02 13:35:00,525 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/data/e587a091a/b91a7a27395248908b2cfd0d58fad649/FLAGcf6b201e2 [2023-12-02 13:35:00,539 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/data/e587a091a/b91a7a27395248908b2cfd0d58fad649 [2023-12-02 13:35:00,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:35:00,543 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:35:00,544 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:35:00,544 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:35:00,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:35:00,549 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:35:00" (1/1) ... [2023-12-02 13:35:00,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@347cf074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:00, skipping insertion in model container [2023-12-02 13:35:00,551 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:35:00" (1/1) ... [2023-12-02 13:35:00,612 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:35:01,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:35:01,393 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:35:01,479 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:35:01,641 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:35:01,641 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:35:01,641 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:35:01,642 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:35:01,649 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:35:01,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:01 WrapperNode [2023-12-02 13:35:01,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:35:01,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:35:01,651 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:35:01,651 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:35:01,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:01" (1/1) ... [2023-12-02 13:35:01,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:01" (1/1) ... [2023-12-02 13:35:01,710 INFO L138 Inliner]: procedures = 507, calls = 59, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 47 [2023-12-02 13:35:01,711 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:35:01,712 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:35:01,712 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:35:01,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:35:01,731 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:01" (1/1) ... [2023-12-02 13:35:01,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:01" (1/1) ... [2023-12-02 13:35:01,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:01" (1/1) ... [2023-12-02 13:35:01,736 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:01" (1/1) ... [2023-12-02 13:35:01,746 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:01" (1/1) ... [2023-12-02 13:35:01,748 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:01" (1/1) ... [2023-12-02 13:35:01,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:01" (1/1) ... [2023-12-02 13:35:01,754 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:01" (1/1) ... [2023-12-02 13:35:01,759 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:35:01,760 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:35:01,760 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:35:01,760 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:35:01,761 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:01" (1/1) ... [2023-12-02 13:35:01,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:35:01,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:35:01,798 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:35:01,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:35:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 13:35:01,836 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 13:35:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 13:35:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:35:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:35:01,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:35:01,837 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 13:35:01,999 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:35:02,001 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:35:02,128 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:35:02,174 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:35:02,174 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 13:35:02,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:35:02 BoogieIcfgContainer [2023-12-02 13:35:02,174 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:35:02,177 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:35:02,177 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:35:02,180 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:35:02,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:35:00" (1/3) ... [2023-12-02 13:35:02,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad5b9f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:35:02, skipping insertion in model container [2023-12-02 13:35:02,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:35:01" (2/3) ... [2023-12-02 13:35:02,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad5b9f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:35:02, skipping insertion in model container [2023-12-02 13:35:02,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:35:02" (3/3) ... [2023-12-02 13:35:02,182 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_sub_54_bad.i [2023-12-02 13:35:02,200 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:35:02,200 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 13:35:02,241 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:35:02,247 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;@751b345f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:35:02,247 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 13:35:02,251 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 13:35:02,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 13:35:02,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:35:02,258 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:35:02,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 13:35:02,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:35:02,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1510497223, now seen corresponding path program 1 times [2023-12-02 13:35:02,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:35:02,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704544677] [2023-12-02 13:35:02,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:35:02,277 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 13:35:02,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:35:02,278 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/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 13:35:02,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/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 13:35:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:35:02,395 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 13:35:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:35:02,459 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-12-02 13:35:02,461 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 13:35:02,463 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 13:35:02,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 13:35:02,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/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 13:35:02,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/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 13:35:02,671 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 13:35:02,676 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:35:02,694 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet97 [2023-12-02 13:35:02,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:35:02 BoogieIcfgContainer [2023-12-02 13:35:02,707 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:35:02,707 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:35:02,707 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:35:02,708 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:35:02,708 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:35:02" (3/4) ... [2023-12-02 13:35:02,711 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 13:35:02,712 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:35:02,714 INFO L158 Benchmark]: Toolchain (without parser) took 2171.21ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 69.1MB in the beginning and 84.5MB in the end (delta: -15.4MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2023-12-02 13:35:02,715 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 71.3MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:35:02,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1106.47ms. Allocated memory is still 96.5MB. Free memory was 68.9MB in the beginning and 46.3MB in the end (delta: 22.6MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2023-12-02 13:35:02,716 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.87ms. Allocated memory is still 96.5MB. Free memory was 45.9MB in the beginning and 42.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:35:02,717 INFO L158 Benchmark]: Boogie Preprocessor took 47.37ms. Allocated memory is still 96.5MB. Free memory was 42.9MB in the beginning and 68.5MB in the end (delta: -25.6MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2023-12-02 13:35:02,718 INFO L158 Benchmark]: RCFGBuilder took 414.84ms. Allocated memory is still 96.5MB. Free memory was 68.5MB in the beginning and 53.2MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 13:35:02,719 INFO L158 Benchmark]: TraceAbstraction took 529.83ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 52.2MB in the beginning and 84.5MB in the end (delta: -32.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:35:02,719 INFO L158 Benchmark]: Witness Printer took 4.59ms. Allocated memory is still 117.4MB. Free memory is still 84.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:35:02,722 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 71.3MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1106.47ms. Allocated memory is still 96.5MB. Free memory was 68.9MB in the beginning and 46.3MB in the end (delta: 22.6MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.87ms. Allocated memory is still 96.5MB. Free memory was 45.9MB in the beginning and 42.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.37ms. Allocated memory is still 96.5MB. Free memory was 42.9MB in the beginning and 68.5MB in the end (delta: -25.6MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * RCFGBuilder took 414.84ms. Allocated memory is still 96.5MB. Free memory was 68.5MB in the beginning and 53.2MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 529.83ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 52.2MB in the beginning and 84.5MB in the end (delta: -32.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.59ms. Allocated memory is still 117.4MB. Free memory is still 84.5MB. 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~nondet97 - 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: 1582]: 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_min_sub_54_bad() [L1551] int data; [L1552] data = 0 [L1553] data = (-0x7fffffff - 1) [L1554] CALL CWE191_Integer_Underflow__int_min_sub_54b_badSink(data) [L1567] CALL CWE191_Integer_Underflow__int_min_sub_54c_badSink(data) [L1572] CALL CWE191_Integer_Underflow__int_min_sub_54d_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_min_sub_54e_badSink(data) [L1582] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1582]: 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 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 13:35:02,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd26d195-a574-44b5-85d2-32e00a0e6080/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