./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_31_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_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/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_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/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_db1bfcb1-2ecf-441e-bced-447d21cefcd2/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 efdbbfbe3f5a563ba897958f3304bc38fc550c7cf92a374e14d4dbbb403be10e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:19:50,438 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:19:50,518 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 15:19:50,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:19:50,524 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:19:50,567 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:19:50,568 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:19:50,568 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:19:50,569 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:19:50,570 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:19:50,570 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:19:50,571 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:19:50,571 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:19:50,572 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:19:50,572 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:19:50,573 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:19:50,573 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:19:50,574 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:19:50,575 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:19:50,575 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:19:50,576 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:19:50,578 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:19:50,579 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:19:50,580 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:19:50,580 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:19:50,580 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:19:50,581 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:19:50,581 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:19:50,581 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:19:50,582 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 15:19:50,582 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 15:19:50,582 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:19:50,583 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:19:50,583 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:19:50,583 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:19:50,583 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:19:50,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:19:50,584 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:19:50,584 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:19:50,584 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:19:50,584 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:19:50,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:19:50,585 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:19:50,585 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:19:50,585 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:19:50,585 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:19:50,586 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_db1bfcb1-2ecf-441e-bced-447d21cefcd2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efdbbfbe3f5a563ba897958f3304bc38fc550c7cf92a374e14d4dbbb403be10e [2023-12-02 15:19:50,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:19:50,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:19:50,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:19:50,829 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:19:50,829 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:19:50,831 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_31_bad.i [2023-12-02 15:19:53,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:19:53,895 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:19:53,896 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_31_bad.i [2023-12-02 15:19:53,922 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/data/2228913be/4069b3db617543f6a884e74caef08711/FLAG91666c41f [2023-12-02 15:19:53,937 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/data/2228913be/4069b3db617543f6a884e74caef08711 [2023-12-02 15:19:53,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:19:53,941 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:19:53,943 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:19:53,943 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:19:53,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:19:53,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:19:53" (1/1) ... [2023-12-02 15:19:53,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@322040db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:19:53, skipping insertion in model container [2023-12-02 15:19:53,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:19:53" (1/1) ... [2023-12-02 15:19:54,027 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:19:54,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:19:54,802 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:19:54,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:19:55,026 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:19:55,026 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:19:55,026 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:19:55,027 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:19:55,035 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:19:55,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:19:55 WrapperNode [2023-12-02 15:19:55,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:19:55,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:19:55,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:19:55,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:19:55,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:19:55" (1/1) ... [2023-12-02 15:19:55,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:19:55" (1/1) ... [2023-12-02 15:19:55,094 INFO L138 Inliner]: procedures = 498, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 45 [2023-12-02 15:19:55,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:19:55,095 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:19:55,095 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:19:55,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:19:55,103 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:19:55" (1/1) ... [2023-12-02 15:19:55,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:19:55" (1/1) ... [2023-12-02 15:19:55,106 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:19:55" (1/1) ... [2023-12-02 15:19:55,107 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:19:55" (1/1) ... [2023-12-02 15:19:55,112 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:19:55" (1/1) ... [2023-12-02 15:19:55,114 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:19:55" (1/1) ... [2023-12-02 15:19:55,116 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:19:55" (1/1) ... [2023-12-02 15:19:55,117 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:19:55" (1/1) ... [2023-12-02 15:19:55,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:19:55,121 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:19:55,121 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:19:55,121 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:19:55,122 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:19:55" (1/1) ... [2023-12-02 15:19:55,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:19:55,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:19:55,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:19:55,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:19:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 15:19:55,192 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 15:19:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:19:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:19:55,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:19:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 15:19:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:19:55,336 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:19:55,339 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:19:55,431 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:19:55,473 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:19:55,473 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 15:19:55,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:19:55 BoogieIcfgContainer [2023-12-02 15:19:55,475 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:19:55,478 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:19:55,478 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:19:55,482 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:19:55,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:19:53" (1/3) ... [2023-12-02 15:19:55,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dcd3401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:19:55, skipping insertion in model container [2023-12-02 15:19:55,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:19:55" (2/3) ... [2023-12-02 15:19:55,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dcd3401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:19:55, skipping insertion in model container [2023-12-02 15:19:55,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:19:55" (3/3) ... [2023-12-02 15:19:55,484 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_postdec_31_bad.i [2023-12-02 15:19:55,505 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:19:55,505 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 15:19:55,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:19:55,555 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;@553cc05a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:19:55,555 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 15:19:55,560 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 15:19:55,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 15:19:55,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:19:55,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-02 15:19:55,569 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 15:19:55,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:19:55,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1771518356, now seen corresponding path program 1 times [2023-12-02 15:19:55,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:19:55,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271400125] [2023-12-02 15:19:55,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:19:55,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:19:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:19:55,714 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:19:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:19:55,761 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 15:19:55,763 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:19:55,764 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 15:19:55,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 15:19:55,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:19:55,772 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 15:19:55,776 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:19:55,791 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-12-02 15:19:55,794 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post98 could not be translated [2023-12-02 15:19:55,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:19:55 BoogieIcfgContainer [2023-12-02 15:19:55,801 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:19:55,802 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:19:55,802 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:19:55,803 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:19:55,803 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:19:55" (3/4) ... [2023-12-02 15:19:55,805 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 15:19:55,806 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:19:55,807 INFO L158 Benchmark]: Toolchain (without parser) took 1865.80ms. Allocated memory is still 178.3MB. Free memory was 143.3MB in the beginning and 110.1MB in the end (delta: 33.2MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2023-12-02 15:19:55,807 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 121.6MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:19:55,808 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1093.07ms. Allocated memory is still 178.3MB. Free memory was 143.3MB in the beginning and 144.7MB in the end (delta: -1.3MB). Peak memory consumption was 71.6MB. Max. memory is 16.1GB. [2023-12-02 15:19:55,809 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.28ms. Allocated memory is still 178.3MB. Free memory was 144.7MB in the beginning and 141.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:19:55,809 INFO L158 Benchmark]: Boogie Preprocessor took 24.61ms. Allocated memory is still 178.3MB. Free memory was 141.9MB in the beginning and 139.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:19:55,810 INFO L158 Benchmark]: RCFGBuilder took 354.46ms. Allocated memory is still 178.3MB. Free memory was 139.8MB in the beginning and 126.9MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 15:19:55,811 INFO L158 Benchmark]: TraceAbstraction took 323.50ms. Allocated memory is still 178.3MB. Free memory was 126.0MB in the beginning and 110.4MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 15:19:55,811 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 178.3MB. Free memory was 110.4MB in the beginning and 110.1MB in the end (delta: 331.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:19:55,815 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 121.6MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1093.07ms. Allocated memory is still 178.3MB. Free memory was 143.3MB in the beginning and 144.7MB in the end (delta: -1.3MB). Peak memory consumption was 71.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.28ms. Allocated memory is still 178.3MB. Free memory was 144.7MB in the beginning and 141.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.61ms. Allocated memory is still 178.3MB. Free memory was 141.9MB in the beginning and 139.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 354.46ms. Allocated memory is still 178.3MB. Free memory was 139.8MB in the beginning and 126.9MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 323.50ms. Allocated memory is still 178.3MB. Free memory was 126.0MB in the beginning and 110.4MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 178.3MB. Free memory was 110.4MB in the beginning and 110.1MB in the end (delta: 331.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet100 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post98 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1557]: 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 1566. 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); [L1566] 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) [L1566] 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] [L1567] CALL CWE191_Integer_Underflow__int_min_postdec_31_bad() [L1550] int data; [L1551] data = 0 [L1552] data = (-0x7fffffff - 1) [L1554] int dataCopy = data; [L1555] int data = dataCopy; [L1557] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, data=-2147483648, dataCopy=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1557]: 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 15:19:55,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/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_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/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_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/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_db1bfcb1-2ecf-441e-bced-447d21cefcd2/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 efdbbfbe3f5a563ba897958f3304bc38fc550c7cf92a374e14d4dbbb403be10e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:19:57,867 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:19:57,952 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-12-02 15:19:57,959 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:19:57,959 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:19:57,991 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:19:57,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:19:57,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:19:57,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:19:57,993 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:19:57,994 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:19:57,994 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:19:57,995 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:19:57,995 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:19:57,996 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:19:57,996 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:19:57,997 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:19:57,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:19:57,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:19:57,999 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:19:58,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:19:58,000 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:19:58,001 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 15:19:58,001 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 15:19:58,002 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 15:19:58,002 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 15:19:58,002 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 15:19:58,003 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:19:58,003 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:19:58,004 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:19:58,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 15:19:58,005 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:19:58,005 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:19:58,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:19:58,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:19:58,006 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:19:58,006 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:19:58,006 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 15:19:58,006 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 15:19:58,007 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:19:58,007 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:19:58,007 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:19:58,007 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:19:58,008 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_db1bfcb1-2ecf-441e-bced-447d21cefcd2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efdbbfbe3f5a563ba897958f3304bc38fc550c7cf92a374e14d4dbbb403be10e [2023-12-02 15:19:58,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:19:58,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:19:58,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:19:58,325 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:19:58,325 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:19:58,327 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_31_bad.i [2023-12-02 15:20:01,164 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:20:01,501 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:20:01,501 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_31_bad.i [2023-12-02 15:20:01,525 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/data/6e9da906d/12af2df5c8a149e7abccaf1cf036a729/FLAG6a912b26f [2023-12-02 15:20:01,539 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/data/6e9da906d/12af2df5c8a149e7abccaf1cf036a729 [2023-12-02 15:20:01,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:20:01,543 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:20:01,544 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:20:01,544 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:20:01,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:20:01,550 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:20:01" (1/1) ... [2023-12-02 15:20:01,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ad8562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:01, skipping insertion in model container [2023-12-02 15:20:01,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:20:01" (1/1) ... [2023-12-02 15:20:01,614 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:20:02,428 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:20:02,442 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:20:02,549 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:20:02,704 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:20:02,704 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:20:02,705 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:20:02,705 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:20:02,713 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:20:02,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:02 WrapperNode [2023-12-02 15:20:02,713 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:20:02,714 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:20:02,715 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:20:02,715 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:20:02,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:02" (1/1) ... [2023-12-02 15:20:02,753 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:02" (1/1) ... [2023-12-02 15:20:02,780 INFO L138 Inliner]: procedures = 503, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 45 [2023-12-02 15:20:02,780 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:20:02,781 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:20:02,781 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:20:02,781 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:20:02,792 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:02" (1/1) ... [2023-12-02 15:20:02,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:02" (1/1) ... [2023-12-02 15:20:02,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:02" (1/1) ... [2023-12-02 15:20:02,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:02" (1/1) ... [2023-12-02 15:20:02,808 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:02" (1/1) ... [2023-12-02 15:20:02,810 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:02" (1/1) ... [2023-12-02 15:20:02,814 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:02" (1/1) ... [2023-12-02 15:20:02,816 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:02" (1/1) ... [2023-12-02 15:20:02,821 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:20:02,823 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:20:02,823 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:20:02,823 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:20:02,824 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:02" (1/1) ... [2023-12-02 15:20:02,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:20:02,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:20:02,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:20:02,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:20:02,908 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 15:20:02,909 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 15:20:02,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 15:20:02,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:20:02,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:20:02,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:20:02,909 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 15:20:03,088 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:20:03,091 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:20:03,200 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:20:03,243 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:20:03,243 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 15:20:03,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:20:03 BoogieIcfgContainer [2023-12-02 15:20:03,244 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:20:03,246 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:20:03,246 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:20:03,249 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:20:03,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:20:01" (1/3) ... [2023-12-02 15:20:03,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b551466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:20:03, skipping insertion in model container [2023-12-02 15:20:03,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:02" (2/3) ... [2023-12-02 15:20:03,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b551466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:20:03, skipping insertion in model container [2023-12-02 15:20:03,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:20:03" (3/3) ... [2023-12-02 15:20:03,253 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_postdec_31_bad.i [2023-12-02 15:20:03,271 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:20:03,272 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 15:20:03,317 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:20:03,323 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;@1419aac7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:20:03,324 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 15:20:03,327 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 15:20:03,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 15:20:03,334 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:20:03,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:20:03,335 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 15:20:03,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:20:03,341 INFO L85 PathProgramCache]: Analyzing trace with hash 540512693, now seen corresponding path program 1 times [2023-12-02 15:20:03,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:20:03,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2008292058] [2023-12-02 15:20:03,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:20:03,355 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 15:20:03,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:20:03,356 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/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 15:20:03,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/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 15:20:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:20:03,511 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:20:03,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:20:03,578 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-12-02 15:20:03,580 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:20:03,582 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 15:20:03,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 15:20:03,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/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 15:20:03,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/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 15:20:03,794 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 15:20:03,798 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:20:03,816 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet98 [2023-12-02 15:20:03,823 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post96 could not be translated [2023-12-02 15:20:03,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:20:03 BoogieIcfgContainer [2023-12-02 15:20:03,831 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:20:03,832 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:20:03,832 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:20:03,832 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:20:03,833 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:20:03" (3/4) ... [2023-12-02 15:20:03,835 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 15:20:03,836 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:20:03,838 INFO L158 Benchmark]: Toolchain (without parser) took 2294.69ms. Allocated memory is still 94.4MB. Free memory was 67.5MB in the beginning and 61.8MB in the end (delta: 5.7MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2023-12-02 15:20:03,839 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 67.1MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:20:03,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1169.48ms. Allocated memory is still 94.4MB. Free memory was 67.2MB in the beginning and 64.3MB in the end (delta: 2.8MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2023-12-02 15:20:03,840 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.95ms. Allocated memory is still 94.4MB. Free memory was 64.3MB in the beginning and 61.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 15:20:03,841 INFO L158 Benchmark]: Boogie Preprocessor took 40.69ms. Allocated memory is still 94.4MB. Free memory was 61.1MB in the beginning and 59.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:20:03,842 INFO L158 Benchmark]: RCFGBuilder took 421.39ms. Allocated memory is still 94.4MB. Free memory was 59.0MB in the beginning and 44.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 15:20:03,842 INFO L158 Benchmark]: TraceAbstraction took 585.05ms. Allocated memory is still 94.4MB. Free memory was 43.8MB in the beginning and 61.8MB in the end (delta: -18.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:20:03,843 INFO L158 Benchmark]: Witness Printer took 4.78ms. Allocated memory is still 94.4MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:20:03,847 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 67.1MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1169.48ms. Allocated memory is still 94.4MB. Free memory was 67.2MB in the beginning and 64.3MB in the end (delta: 2.8MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.95ms. Allocated memory is still 94.4MB. Free memory was 64.3MB in the beginning and 61.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.69ms. Allocated memory is still 94.4MB. Free memory was 61.1MB in the beginning and 59.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 421.39ms. Allocated memory is still 94.4MB. Free memory was 59.0MB in the beginning and 44.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 585.05ms. Allocated memory is still 94.4MB. Free memory was 43.8MB in the beginning and 61.8MB in the end (delta: -18.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.78ms. Allocated memory is still 94.4MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet98 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post96 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1557]: 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 1566. 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); [L1566] 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) [L1566] 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] [L1567] CALL CWE191_Integer_Underflow__int_min_postdec_31_bad() [L1550] int data; [L1551] data = 0 [L1552] data = (-0x7fffffff - 1) [L1554] int dataCopy = data; [L1555] int data = dataCopy; [L1557] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, data=-2147483648, dataCopy=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1557]: 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 15:20:03,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db1bfcb1-2ecf-441e-bced-447d21cefcd2/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