./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_08_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_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/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_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/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_861f2ec3-6005-4703-9604-5c276b49152a/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 be10955d018fcabdfe6e07b5da717126cb1dd6f4baddebb72089fb708ca0e964 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:55:00,401 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:55:00,464 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 13:55:00,470 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:55:00,470 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:55:00,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:55:00,496 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:55:00,497 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:55:00,497 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:55:00,498 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:55:00,498 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:55:00,499 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:55:00,499 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:55:00,500 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:55:00,500 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:55:00,501 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:55:00,501 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:55:00,502 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:55:00,502 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:55:00,503 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:55:00,503 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:55:00,504 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:55:00,505 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:55:00,506 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:55:00,506 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:55:00,506 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:55:00,507 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:55:00,507 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:55:00,508 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:55:00,508 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 13:55:00,508 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 13:55:00,509 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:55:00,509 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:55:00,509 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:55:00,510 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:55:00,510 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:55:00,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:55:00,510 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:55:00,510 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:55:00,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:55:00,511 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:55:00,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:55:00,511 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:55:00,511 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:55:00,512 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:55:00,512 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:55:00,512 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_861f2ec3-6005-4703-9604-5c276b49152a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be10955d018fcabdfe6e07b5da717126cb1dd6f4baddebb72089fb708ca0e964 [2023-12-02 13:55:00,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:55:00,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:55:00,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:55:00,741 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:55:00,742 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:55:00,743 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_08_bad.i [2023-12-02 13:55:03,527 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:55:03,813 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:55:03,813 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_08_bad.i [2023-12-02 13:55:03,836 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/data/e4257be80/eb355a40f7bd4fbbb42af1fea5a1540f/FLAG5e1376962 [2023-12-02 13:55:03,851 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/data/e4257be80/eb355a40f7bd4fbbb42af1fea5a1540f [2023-12-02 13:55:03,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:55:03,855 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:55:03,856 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:55:03,857 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:55:03,862 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:55:03,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:55:03" (1/1) ... [2023-12-02 13:55:03,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d278331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:03, skipping insertion in model container [2023-12-02 13:55:03,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:55:03" (1/1) ... [2023-12-02 13:55:03,946 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:55:04,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:55:04,675 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:55:04,754 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:55:04,924 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:55:04,925 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:55:04,925 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:55:04,925 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:55:04,933 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:55:04,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:04 WrapperNode [2023-12-02 13:55:04,933 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:55:04,934 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:55:04,934 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:55:04,934 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:55:04,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:04" (1/1) ... [2023-12-02 13:55:04,962 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:04" (1/1) ... [2023-12-02 13:55:04,983 INFO L138 Inliner]: procedures = 500, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2023-12-02 13:55:04,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:55:04,984 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:55:04,984 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:55:04,984 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:55:04,991 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:04" (1/1) ... [2023-12-02 13:55:04,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:04" (1/1) ... [2023-12-02 13:55:04,993 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:04" (1/1) ... [2023-12-02 13:55:04,994 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:04" (1/1) ... [2023-12-02 13:55:04,999 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:04" (1/1) ... [2023-12-02 13:55:05,000 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:04" (1/1) ... [2023-12-02 13:55:05,002 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:04" (1/1) ... [2023-12-02 13:55:05,003 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:04" (1/1) ... [2023-12-02 13:55:05,005 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:55:05,006 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:55:05,006 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:55:05,006 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:55:05,007 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:04" (1/1) ... [2023-12-02 13:55:05,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:55:05,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:55:05,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:55:05,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:55:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 13:55:05,077 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 13:55:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:55:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:55:05,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:55:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2023-12-02 13:55:05,077 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2023-12-02 13:55:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 13:55:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:55:05,214 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:55:05,216 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:55:05,313 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:55:05,350 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:55:05,350 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 13:55:05,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:55:05 BoogieIcfgContainer [2023-12-02 13:55:05,352 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:55:05,354 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:55:05,354 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:55:05,358 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:55:05,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:55:03" (1/3) ... [2023-12-02 13:55:05,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75fac863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:55:05, skipping insertion in model container [2023-12-02 13:55:05,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:04" (2/3) ... [2023-12-02 13:55:05,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75fac863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:55:05, skipping insertion in model container [2023-12-02 13:55:05,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:55:05" (3/3) ... [2023-12-02 13:55:05,361 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_predec_08_bad.i [2023-12-02 13:55:05,379 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:55:05,380 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 13:55:05,428 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:55:05,433 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;@7fb2536f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:55:05,434 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 13:55:05,437 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 13:55:05,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 13:55:05,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:55:05,445 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:55:05,446 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 13:55:05,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:55:05,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1733410871, now seen corresponding path program 1 times [2023-12-02 13:55:05,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:55:05,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404389957] [2023-12-02 13:55:05,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:55:05,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:55:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:55:05,586 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 13:55:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:55:05,650 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 13:55:05,652 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 13:55:05,653 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 13:55:05,655 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 13:55:05,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:55:05,660 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 13:55:05,664 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:55:05,681 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-12-02 13:55:05,684 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret98 could not be translated [2023-12-02 13:55:05,685 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret99 could not be translated [2023-12-02 13:55:05,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:55:05 BoogieIcfgContainer [2023-12-02 13:55:05,692 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:55:05,693 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:55:05,693 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:55:05,693 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:55:05,693 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:55:05" (3/4) ... [2023-12-02 13:55:05,696 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 13:55:05,697 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:55:05,698 INFO L158 Benchmark]: Toolchain (without parser) took 1842.78ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 89.4MB in the beginning and 129.4MB in the end (delta: -40.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:55:05,698 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory is still 53.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:55:05,699 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1076.96ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 89.3MB in the beginning and 105.2MB in the end (delta: -15.9MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-12-02 13:55:05,700 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.83ms. Allocated memory is still 167.8MB. Free memory was 105.2MB in the beginning and 102.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:55:05,700 INFO L158 Benchmark]: Boogie Preprocessor took 21.19ms. Allocated memory is still 167.8MB. Free memory was 102.3MB in the beginning and 101.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:55:05,701 INFO L158 Benchmark]: RCFGBuilder took 345.88ms. Allocated memory is still 167.8MB. Free memory was 101.0MB in the beginning and 86.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 13:55:05,701 INFO L158 Benchmark]: TraceAbstraction took 337.88ms. Allocated memory is still 167.8MB. Free memory was 85.5MB in the beginning and 130.5MB in the end (delta: -45.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 13:55:05,702 INFO L158 Benchmark]: Witness Printer took 4.17ms. Allocated memory is still 167.8MB. Free memory was 130.5MB in the beginning and 129.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:55:05,705 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 100.7MB. Free memory is still 53.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1076.96ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 89.3MB in the beginning and 105.2MB in the end (delta: -15.9MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.83ms. Allocated memory is still 167.8MB. Free memory was 105.2MB in the beginning and 102.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.19ms. Allocated memory is still 167.8MB. Free memory was 102.3MB in the beginning and 101.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 345.88ms. Allocated memory is still 167.8MB. Free memory was 101.0MB in the beginning and 86.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 337.88ms. Allocated memory is still 167.8MB. Free memory was 85.5MB in the beginning and 130.5MB in the end (delta: -45.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.17ms. Allocated memory is still 167.8MB. Free memory was 130.5MB in the beginning and 129.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet102 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret98 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret99 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: 1567]: 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 1576. 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); [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_min_predec_08_bad() [L1558] int data; [L1559] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1560] RET staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] COND TRUE staticReturnsTrue() [L1562] data = (-0x7fffffff - 1) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1564] RET staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] COND TRUE staticReturnsTrue() [L1567] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1567]: 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 3 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 2, 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=20occurred 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, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 13:55:05,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/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_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/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_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/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_861f2ec3-6005-4703-9604-5c276b49152a/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 be10955d018fcabdfe6e07b5da717126cb1dd6f4baddebb72089fb708ca0e964 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:55:07,636 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:55:07,713 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-12-02 13:55:07,719 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:55:07,719 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:55:07,746 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:55:07,747 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:55:07,748 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:55:07,748 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:55:07,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:55:07,750 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:55:07,750 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:55:07,751 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:55:07,751 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:55:07,752 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:55:07,752 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:55:07,753 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:55:07,754 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:55:07,754 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:55:07,755 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:55:07,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:55:07,756 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:55:07,756 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 13:55:07,757 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 13:55:07,757 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 13:55:07,758 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 13:55:07,758 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 13:55:07,758 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:55:07,759 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:55:07,759 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:55:07,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 13:55:07,760 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:55:07,760 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:55:07,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:55:07,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:55:07,761 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:55:07,762 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:55:07,762 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 13:55:07,762 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 13:55:07,762 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:55:07,762 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:55:07,763 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:55:07,763 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:55:07,763 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_861f2ec3-6005-4703-9604-5c276b49152a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be10955d018fcabdfe6e07b5da717126cb1dd6f4baddebb72089fb708ca0e964 [2023-12-02 13:55:08,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:55:08,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:55:08,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:55:08,063 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:55:08,064 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:55:08,065 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_08_bad.i [2023-12-02 13:55:10,861 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:55:11,199 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:55:11,200 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_08_bad.i [2023-12-02 13:55:11,222 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/data/7aa6d71e5/c584fd88875e41f0aefdba3a7783f1a5/FLAG37846ee06 [2023-12-02 13:55:11,237 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/data/7aa6d71e5/c584fd88875e41f0aefdba3a7783f1a5 [2023-12-02 13:55:11,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:55:11,241 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:55:11,242 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:55:11,242 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:55:11,247 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:55:11,248 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:55:11" (1/1) ... [2023-12-02 13:55:11,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f338413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:11, skipping insertion in model container [2023-12-02 13:55:11,250 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:55:11" (1/1) ... [2023-12-02 13:55:11,323 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:55:12,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:55:12,126 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:55:12,223 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:55:12,363 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:55:12,364 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:55:12,364 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:55:12,364 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:55:12,372 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:55:12,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:12 WrapperNode [2023-12-02 13:55:12,373 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:55:12,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:55:12,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:55:12,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:55:12,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:12" (1/1) ... [2023-12-02 13:55:12,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:12" (1/1) ... [2023-12-02 13:55:12,434 INFO L138 Inliner]: procedures = 505, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 50 [2023-12-02 13:55:12,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:55:12,435 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:55:12,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:55:12,435 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:55:12,445 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:12" (1/1) ... [2023-12-02 13:55:12,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:12" (1/1) ... [2023-12-02 13:55:12,449 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:12" (1/1) ... [2023-12-02 13:55:12,450 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:12" (1/1) ... [2023-12-02 13:55:12,459 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:12" (1/1) ... [2023-12-02 13:55:12,461 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:12" (1/1) ... [2023-12-02 13:55:12,464 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:12" (1/1) ... [2023-12-02 13:55:12,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:12" (1/1) ... [2023-12-02 13:55:12,471 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:55:12,472 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:55:12,472 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:55:12,472 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:55:12,473 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:12" (1/1) ... [2023-12-02 13:55:12,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:55:12,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:55:12,513 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:55:12,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:55:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 13:55:12,555 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 13:55:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 13:55:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:55:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:55:12,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:55:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2023-12-02 13:55:12,556 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2023-12-02 13:55:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 13:55:12,708 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:55:12,711 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:55:12,822 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:55:12,853 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:55:12,853 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 13:55:12,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:55:12 BoogieIcfgContainer [2023-12-02 13:55:12,854 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:55:12,857 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:55:12,857 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:55:12,860 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:55:12,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:55:11" (1/3) ... [2023-12-02 13:55:12,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8b660d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:55:12, skipping insertion in model container [2023-12-02 13:55:12,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:12" (2/3) ... [2023-12-02 13:55:12,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8b660d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:55:12, skipping insertion in model container [2023-12-02 13:55:12,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:55:12" (3/3) ... [2023-12-02 13:55:12,863 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_predec_08_bad.i [2023-12-02 13:55:12,882 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:55:12,882 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 13:55:12,929 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:55:12,936 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;@69497506, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:55:12,936 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 13:55:12,940 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 13:55:12,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 13:55:12,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:55:12,948 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:55:12,949 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 13:55:12,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:55:12,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1144390539, now seen corresponding path program 1 times [2023-12-02 13:55:12,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:55:12,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [88321009] [2023-12-02 13:55:12,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:55:12,968 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:55:12,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:55:12,970 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 13:55:12,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-02 13:55:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:55:13,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 13:55:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:55:13,139 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-12-02 13:55:13,141 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 13:55:13,142 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 13:55:13,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 13:55:13,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:55:13,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:55:13,350 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 13:55:13,354 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:55:13,371 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-12-02 13:55:13,374 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret96 could not be translated [2023-12-02 13:55:13,375 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret97 could not be translated [2023-12-02 13:55:13,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:55:13 BoogieIcfgContainer [2023-12-02 13:55:13,382 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:55:13,383 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:55:13,383 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:55:13,383 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:55:13,384 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:55:12" (3/4) ... [2023-12-02 13:55:13,386 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 13:55:13,387 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:55:13,388 INFO L158 Benchmark]: Toolchain (without parser) took 2146.95ms. Allocated memory is still 102.8MB. Free memory was 75.8MB in the beginning and 43.7MB in the end (delta: 32.2MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2023-12-02 13:55:13,388 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 71.3MB. Free memory was 47.6MB in the beginning and 47.5MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:55:13,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1130.75ms. Allocated memory is still 102.8MB. Free memory was 75.5MB in the beginning and 41.3MB in the end (delta: 34.1MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2023-12-02 13:55:13,390 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.80ms. Allocated memory is still 102.8MB. Free memory was 41.3MB in the beginning and 38.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:55:13,391 INFO L158 Benchmark]: Boogie Preprocessor took 36.25ms. Allocated memory is still 102.8MB. Free memory was 38.2MB in the beginning and 36.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:55:13,391 INFO L158 Benchmark]: RCFGBuilder took 382.19ms. Allocated memory is still 102.8MB. Free memory was 36.1MB in the beginning and 61.0MB in the end (delta: -24.9MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2023-12-02 13:55:13,392 INFO L158 Benchmark]: TraceAbstraction took 525.84ms. Allocated memory is still 102.8MB. Free memory was 60.4MB in the beginning and 43.7MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 13:55:13,392 INFO L158 Benchmark]: Witness Printer took 3.93ms. Allocated memory is still 102.8MB. Free memory is still 43.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:55:13,396 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 71.3MB. Free memory was 47.6MB in the beginning and 47.5MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1130.75ms. Allocated memory is still 102.8MB. Free memory was 75.5MB in the beginning and 41.3MB in the end (delta: 34.1MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.80ms. Allocated memory is still 102.8MB. Free memory was 41.3MB in the beginning and 38.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.25ms. Allocated memory is still 102.8MB. Free memory was 38.2MB in the beginning and 36.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 382.19ms. Allocated memory is still 102.8MB. Free memory was 36.1MB in the beginning and 61.0MB in the end (delta: -24.9MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * TraceAbstraction took 525.84ms. Allocated memory is still 102.8MB. Free memory was 60.4MB in the beginning and 43.7MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.93ms. Allocated memory is still 102.8MB. Free memory is still 43.7MB. 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~ret96 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret97 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: 1567]: 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 1576. 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); [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_min_predec_08_bad() [L1558] int data; [L1559] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1560] RET staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] COND TRUE staticReturnsTrue() [L1562] data = (-0x7fffffff - 1) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1564] RET staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] COND TRUE staticReturnsTrue() [L1567] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1567]: 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 3 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 2, 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=21occurred 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, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 13:55:13,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861f2ec3-6005-4703-9604-5c276b49152a/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