./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_66_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_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/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_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/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_ec57bc90-ec1f-46f0-a062-e0208e0e5876/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 a874fb025ca58c9c2fa513b05e67b8c9bd039da63cbe1c229a4eb3f4db89cafe --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:25:38,406 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:25:38,472 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 15:25:38,476 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:25:38,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:25:38,513 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:25:38,514 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:25:38,515 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:25:38,515 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:25:38,516 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:25:38,516 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:25:38,517 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:25:38,517 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:25:38,518 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:25:38,518 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:25:38,519 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:25:38,520 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:25:38,520 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:25:38,521 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:25:38,521 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:25:38,522 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:25:38,522 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:25:38,523 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:25:38,523 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:25:38,524 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:25:38,524 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:25:38,525 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:25:38,525 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:25:38,525 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:25:38,526 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 15:25:38,526 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 15:25:38,526 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:25:38,527 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:25:38,537 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:25:38,537 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:25:38,537 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:25:38,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:25:38,538 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:25:38,538 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:25:38,538 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:25:38,538 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:25:38,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:25:38,539 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:25:38,539 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:25:38,539 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:25:38,539 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:25:38,539 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_ec57bc90-ec1f-46f0-a062-e0208e0e5876/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a874fb025ca58c9c2fa513b05e67b8c9bd039da63cbe1c229a4eb3f4db89cafe [2023-12-02 15:25:38,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:25:38,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:25:38,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:25:38,788 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:25:38,788 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:25:38,790 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_66_bad.i [2023-12-02 15:25:41,549 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:25:41,843 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:25:41,843 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_66_bad.i [2023-12-02 15:25:41,869 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/data/7b0b4a9d2/dd27a7189a1e48929d8a524736098bec/FLAG3de62e02f [2023-12-02 15:25:41,883 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/data/7b0b4a9d2/dd27a7189a1e48929d8a524736098bec [2023-12-02 15:25:41,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:25:41,887 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:25:41,889 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:25:41,889 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:25:41,894 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:25:41,895 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:25:41" (1/1) ... [2023-12-02 15:25:41,896 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32646e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:41, skipping insertion in model container [2023-12-02 15:25:41,896 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:25:41" (1/1) ... [2023-12-02 15:25:41,950 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:25:42,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:25:42,674 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:25:42,760 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:25:42,940 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:25:42,941 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:25:42,941 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:25:42,941 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:25:42,949 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:25:42,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:42 WrapperNode [2023-12-02 15:25:42,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:25:42,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:25:42,951 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:25:42,951 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:25:42,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:42" (1/1) ... [2023-12-02 15:25:42,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:42" (1/1) ... [2023-12-02 15:25:43,010 INFO L138 Inliner]: procedures = 499, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 48 [2023-12-02 15:25:43,010 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:25:43,011 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:25:43,011 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:25:43,011 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:25:43,021 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:42" (1/1) ... [2023-12-02 15:25:43,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:42" (1/1) ... [2023-12-02 15:25:43,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:42" (1/1) ... [2023-12-02 15:25:43,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:42" (1/1) ... [2023-12-02 15:25:43,033 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:42" (1/1) ... [2023-12-02 15:25:43,035 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:42" (1/1) ... [2023-12-02 15:25:43,037 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:42" (1/1) ... [2023-12-02 15:25:43,038 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:42" (1/1) ... [2023-12-02 15:25:43,042 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:25:43,043 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:25:43,043 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:25:43,043 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:25:43,044 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:42" (1/1) ... [2023-12-02 15:25:43,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:25:43,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:25:43,075 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:25:43,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:25:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 15:25:43,110 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 15:25:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:25:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 15:25:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:25:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:25:43,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:25:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:25:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 15:25:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:25:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:25:43,251 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:25:43,253 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:25:43,348 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:25:43,392 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:25:43,392 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 15:25:43,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:25:43 BoogieIcfgContainer [2023-12-02 15:25:43,394 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:25:43,397 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:25:43,397 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:25:43,399 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:25:43,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:25:41" (1/3) ... [2023-12-02 15:25:43,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa689af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:25:43, skipping insertion in model container [2023-12-02 15:25:43,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:42" (2/3) ... [2023-12-02 15:25:43,401 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa689af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:25:43, skipping insertion in model container [2023-12-02 15:25:43,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:25:43" (3/3) ... [2023-12-02 15:25:43,403 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_sub_66_bad.i [2023-12-02 15:25:43,418 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:25:43,418 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 15:25:43,458 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:25:43,464 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;@65f572c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:25:43,464 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 15:25:43,467 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 15:25:43,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 15:25:43,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:25:43,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-02 15:25:43,475 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 15:25:43,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:25:43,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1830714995, now seen corresponding path program 1 times [2023-12-02 15:25:43,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:25:43,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237208056] [2023-12-02 15:25:43,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:25:43,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:25:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:25:43,610 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:25:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:25:43,661 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 15:25:43,662 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:25:43,663 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 15:25:43,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 15:25:43,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:25:43,669 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 15:25:43,674 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:25:43,687 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet99 [2023-12-02 15:25:43,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:25:43 BoogieIcfgContainer [2023-12-02 15:25:43,695 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:25:43,695 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:25:43,696 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:25:43,696 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:25:43,696 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:25:43" (3/4) ... [2023-12-02 15:25:43,698 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 15:25:43,699 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:25:43,700 INFO L158 Benchmark]: Toolchain (without parser) took 1813.07ms. Allocated memory was 142.6MB in the beginning and 203.4MB in the end (delta: 60.8MB). Free memory was 96.2MB in the beginning and 125.3MB in the end (delta: -29.0MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2023-12-02 15:25:43,701 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory is still 108.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:25:43,701 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1061.47ms. Allocated memory was 142.6MB in the beginning and 203.4MB in the end (delta: 60.8MB). Free memory was 96.2MB in the beginning and 160.9MB in the end (delta: -64.7MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. [2023-12-02 15:25:43,702 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.64ms. Allocated memory is still 203.4MB. Free memory was 160.9MB in the beginning and 157.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:25:43,703 INFO L158 Benchmark]: Boogie Preprocessor took 30.84ms. Allocated memory is still 203.4MB. Free memory was 157.8MB in the beginning and 156.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:25:43,703 INFO L158 Benchmark]: RCFGBuilder took 351.32ms. Allocated memory is still 203.4MB. Free memory was 156.7MB in the beginning and 142.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 15:25:43,704 INFO L158 Benchmark]: TraceAbstraction took 298.43ms. Allocated memory is still 203.4MB. Free memory was 142.0MB in the beginning and 125.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 15:25:43,704 INFO L158 Benchmark]: Witness Printer took 3.95ms. Allocated memory is still 203.4MB. Free memory was 125.3MB in the beginning and 125.3MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:25:43,708 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory is still 108.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1061.47ms. Allocated memory was 142.6MB in the beginning and 203.4MB in the end (delta: 60.8MB). Free memory was 96.2MB in the beginning and 160.9MB in the end (delta: -64.7MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.64ms. Allocated memory is still 203.4MB. Free memory was 160.9MB in the beginning and 157.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.84ms. Allocated memory is still 203.4MB. Free memory was 157.8MB in the beginning and 156.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 351.32ms. Allocated memory is still 203.4MB. Free memory was 156.7MB in the beginning and 142.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 298.43ms. Allocated memory is still 203.4MB. Free memory was 142.0MB in the beginning and 125.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.95ms. Allocated memory is still 203.4MB. Free memory was 125.3MB in the beginning and 125.3MB in the end (delta: 2.6kB). 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: 1570]: 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 1561. 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); [L1561] 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) [L1561] 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] [L1562] CALL CWE191_Integer_Underflow__int_min_sub_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1554] data = (-0x7fffffff - 1) [L1555] dataArray[2] = data [L1556] CALL CWE191_Integer_Underflow__int_min_sub_66b_badSink(dataArray) [L1568] EXPR dataArray[2] [L1568] int data = dataArray[2]; [L1570] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataArray={4:0}, dataArray={4:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1570]: 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 15:25:43,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/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_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/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_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/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_ec57bc90-ec1f-46f0-a062-e0208e0e5876/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 a874fb025ca58c9c2fa513b05e67b8c9bd039da63cbe1c229a4eb3f4db89cafe --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:25:45,722 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:25:45,799 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-12-02 15:25:45,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:25:45,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:25:45,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:25:45,835 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:25:45,836 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:25:45,836 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:25:45,837 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:25:45,837 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:25:45,838 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:25:45,838 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:25:45,839 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:25:45,840 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:25:45,840 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:25:45,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:25:45,841 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:25:45,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:25:45,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:25:45,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:25:45,843 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:25:45,844 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 15:25:45,844 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 15:25:45,845 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 15:25:45,845 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 15:25:45,845 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 15:25:45,846 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:25:45,846 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:25:45,847 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:25:45,847 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 15:25:45,847 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:25:45,848 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:25:45,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:25:45,848 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:25:45,848 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:25:45,849 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:25:45,849 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 15:25:45,849 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 15:25:45,849 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:25:45,850 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:25:45,850 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:25:45,850 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:25:45,850 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_ec57bc90-ec1f-46f0-a062-e0208e0e5876/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a874fb025ca58c9c2fa513b05e67b8c9bd039da63cbe1c229a4eb3f4db89cafe [2023-12-02 15:25:46,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:25:46,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:25:46,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:25:46,161 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:25:46,161 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:25:46,163 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_66_bad.i [2023-12-02 15:25:48,939 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:25:49,263 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:25:49,264 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_66_bad.i [2023-12-02 15:25:49,285 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/data/4b0afa96e/7b201cda47124adeb3c79fb83dcdd98e/FLAG2998654cb [2023-12-02 15:25:49,297 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/data/4b0afa96e/7b201cda47124adeb3c79fb83dcdd98e [2023-12-02 15:25:49,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:25:49,301 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:25:49,302 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:25:49,302 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:25:49,306 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:25:49,307 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:25:49" (1/1) ... [2023-12-02 15:25:49,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@139ac97b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:49, skipping insertion in model container [2023-12-02 15:25:49,308 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:25:49" (1/1) ... [2023-12-02 15:25:49,362 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:25:50,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:25:50,078 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:25:50,204 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:25:50,304 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:25:50,304 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:25:50,305 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:25:50,305 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:25:50,310 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:25:50,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:50 WrapperNode [2023-12-02 15:25:50,311 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:25:50,312 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:25:50,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:25:50,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:25:50,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:50" (1/1) ... [2023-12-02 15:25:50,345 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:50" (1/1) ... [2023-12-02 15:25:50,367 INFO L138 Inliner]: procedures = 504, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 48 [2023-12-02 15:25:50,367 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:25:50,368 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:25:50,368 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:25:50,368 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:25:50,375 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:50" (1/1) ... [2023-12-02 15:25:50,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:50" (1/1) ... [2023-12-02 15:25:50,380 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:50" (1/1) ... [2023-12-02 15:25:50,380 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:50" (1/1) ... [2023-12-02 15:25:50,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:50" (1/1) ... [2023-12-02 15:25:50,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:50" (1/1) ... [2023-12-02 15:25:50,396 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:50" (1/1) ... [2023-12-02 15:25:50,398 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:50" (1/1) ... [2023-12-02 15:25:50,403 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:25:50,404 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:25:50,404 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:25:50,404 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:25:50,405 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:50" (1/1) ... [2023-12-02 15:25:50,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:25:50,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:25:50,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:25:50,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:25:50,475 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 15:25:50,475 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 15:25:50,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:25:50,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 15:25:50,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:25:50,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:25:50,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:25:50,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 15:25:50,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:25:50,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 15:25:50,476 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 15:25:50,632 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:25:50,635 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:25:50,750 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:25:50,791 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:25:50,791 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 15:25:50,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:25:50 BoogieIcfgContainer [2023-12-02 15:25:50,792 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:25:50,795 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:25:50,795 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:25:50,798 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:25:50,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:25:49" (1/3) ... [2023-12-02 15:25:50,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3320fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:25:50, skipping insertion in model container [2023-12-02 15:25:50,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:50" (2/3) ... [2023-12-02 15:25:50,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3320fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:25:50, skipping insertion in model container [2023-12-02 15:25:50,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:25:50" (3/3) ... [2023-12-02 15:25:50,801 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_sub_66_bad.i [2023-12-02 15:25:50,820 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:25:50,820 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 15:25:50,864 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:25:50,871 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;@57ead320, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:25:50,871 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 15:25:50,876 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 15:25:50,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 15:25:50,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:25:50,884 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:25:50,885 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 15:25:50,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:25:50,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1506175351, now seen corresponding path program 1 times [2023-12-02 15:25:50,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:25:50,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1433845912] [2023-12-02 15:25:50,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:25:50,904 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 15:25:50,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:25:50,906 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/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 15:25:50,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/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 15:25:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:25:51,078 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:25:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:25:51,139 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-12-02 15:25:51,140 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:25:51,141 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 15:25:51,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 15:25:51,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/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 15:25:51,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/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 15:25:51,349 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 15:25:51,353 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:25:51,368 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet97 [2023-12-02 15:25:51,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:25:51 BoogieIcfgContainer [2023-12-02 15:25:51,377 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:25:51,377 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:25:51,377 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:25:51,378 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:25:51,378 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:25:50" (3/4) ... [2023-12-02 15:25:51,380 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 15:25:51,381 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:25:51,382 INFO L158 Benchmark]: Toolchain (without parser) took 2081.56ms. Allocated memory is still 100.7MB. Free memory was 74.3MB in the beginning and 55.4MB in the end (delta: 18.9MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2023-12-02 15:25:51,383 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 67.1MB. Free memory is still 43.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:25:51,383 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1009.42ms. Allocated memory is still 100.7MB. Free memory was 74.0MB in the beginning and 63.7MB in the end (delta: 10.4MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. [2023-12-02 15:25:51,384 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.60ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 60.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:25:51,385 INFO L158 Benchmark]: Boogie Preprocessor took 34.98ms. Allocated memory is still 100.7MB. Free memory was 60.7MB in the beginning and 58.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:25:51,385 INFO L158 Benchmark]: RCFGBuilder took 388.39ms. Allocated memory is still 100.7MB. Free memory was 58.5MB in the beginning and 72.7MB in the end (delta: -14.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 15:25:51,386 INFO L158 Benchmark]: TraceAbstraction took 582.20ms. Allocated memory is still 100.7MB. Free memory was 72.2MB in the beginning and 56.0MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 15:25:51,386 INFO L158 Benchmark]: Witness Printer took 4.17ms. Allocated memory is still 100.7MB. Free memory is still 55.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:25:51,389 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 67.1MB. Free memory is still 43.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1009.42ms. Allocated memory is still 100.7MB. Free memory was 74.0MB in the beginning and 63.7MB in the end (delta: 10.4MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.60ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 60.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.98ms. Allocated memory is still 100.7MB. Free memory was 60.7MB in the beginning and 58.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 388.39ms. Allocated memory is still 100.7MB. Free memory was 58.5MB in the beginning and 72.7MB in the end (delta: -14.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 582.20ms. Allocated memory is still 100.7MB. Free memory was 72.2MB in the beginning and 56.0MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.17ms. Allocated memory is still 100.7MB. Free memory is still 55.4MB. 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: 1570]: 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 1561. 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); [L1561] 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) [L1561] 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] [L1562] CALL CWE191_Integer_Underflow__int_min_sub_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1554] data = (-0x7fffffff - 1) [L1555] dataArray[2] = data [L1556] CALL CWE191_Integer_Underflow__int_min_sub_66b_badSink(dataArray) [L1568] EXPR dataArray[2] [L1568] int data = dataArray[2]; [L1570] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataArray={-9223372036854775808:0}, dataArray={-9223372036854775808:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1570]: 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: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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 15:25:51,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec57bc90-ec1f-46f0-a062-e0208e0e5876/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