./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2 --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 2649b1239dfd4d32a381247ed4f3ea4d3759b9bf4f4dfb0870461a76ea95d255 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:27:38,853 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:27:38,958 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-02 12:27:38,963 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:27:38,965 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:27:38,997 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:27:38,998 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:27:38,999 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:27:39,000 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:27:39,004 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:27:39,004 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:27:39,005 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:27:39,005 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:27:39,005 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:27:39,005 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:27:39,006 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:27:39,006 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:27:39,006 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:27:39,008 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:27:39,009 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:27:39,009 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:27:39,010 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:27:39,010 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:27:39,011 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:27:39,013 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:27:39,013 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:27:39,013 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:27:39,014 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:27:39,014 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:27:39,014 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:27:39,015 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 12:27:39,015 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:27:39,015 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:27:39,016 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:27:39,017 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:27:39,017 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:27:39,017 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:27:39,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:27:39,019 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:27:39,019 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:27:39,019 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:27:39,020 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:27:39,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:27:39,020 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:27:39,021 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:27:39,021 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:27:39,021 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_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2649b1239dfd4d32a381247ed4f3ea4d3759b9bf4f4dfb0870461a76ea95d255 [2024-11-02 12:27:39,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:27:39,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:27:39,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:27:39,348 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:27:39,350 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:27:39,351 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i Unable to find full path for "g++" [2024-11-02 12:27:41,407 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:27:41,801 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:27:41,801 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i [2024-11-02 12:27:41,821 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/data/11ceaa1fe/a30807c313f64fa482f4a46a84461546/FLAG81507eb51 [2024-11-02 12:27:41,835 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/data/11ceaa1fe/a30807c313f64fa482f4a46a84461546 [2024-11-02 12:27:41,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:27:41,839 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:27:41,841 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:27:41,841 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:27:41,846 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:27:41,847 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:27:41" (1/1) ... [2024-11-02 12:27:41,848 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@813e761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:41, skipping insertion in model container [2024-11-02 12:27:41,848 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:27:41" (1/1) ... [2024-11-02 12:27:41,909 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:27:42,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:27:42,977 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:27:43,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:27:43,349 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:27:43,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43 WrapperNode [2024-11-02 12:27:43,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:27:43,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:27:43,352 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:27:43,352 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:27:43,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,400 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,440 INFO L138 Inliner]: procedures = 497, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 102 [2024-11-02 12:27:43,441 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:27:43,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:27:43,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:27:43,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:27:43,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,458 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,463 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,466 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,468 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,469 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,472 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:27:43,473 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:27:43,473 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:27:43,473 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:27:43,474 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (1/1) ... [2024-11-02 12:27:43,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:27:43,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:27:43,509 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:27:43,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:27:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-02 12:27:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-02 12:27:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:27:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:27:43,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:27:43,801 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:27:43,805 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:27:44,145 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-11-02 12:27:44,145 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:27:44,376 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:27:44,377 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:27:44,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:27:44 BoogieIcfgContainer [2024-11-02 12:27:44,377 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:27:44,381 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:27:44,382 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:27:44,385 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:27:44,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:27:41" (1/3) ... [2024-11-02 12:27:44,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1173e096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:27:44, skipping insertion in model container [2024-11-02 12:27:44,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:43" (2/3) ... [2024-11-02 12:27:44,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1173e096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:27:44, skipping insertion in model container [2024-11-02 12:27:44,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:27:44" (3/3) ... [2024-11-02 12:27:44,392 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_31_bad.i [2024-11-02 12:27:44,414 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:27:44,414 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-02 12:27:44,487 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:27:44,493 INFO L333 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, 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;@a2169b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:27:44,493 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-02 12:27:44,498 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) [2024-11-02 12:27:44,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-02 12:27:44,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:27:44,507 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-02 12:27:44,507 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-02 12:27:44,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:27:44,512 INFO L85 PathProgramCache]: Analyzing trace with hash -157546159, now seen corresponding path program 1 times [2024-11-02 12:27:44,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:27:44,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128311161] [2024-11-02 12:27:44,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:27:44,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:27:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:27:44,935 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:27:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:27:45,145 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:27:45,147 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:27:45,149 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-02 12:27:45,151 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-02 12:27:45,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:27:45,159 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 12:27:45,188 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:27:45,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:27:45 BoogieIcfgContainer [2024-11-02 12:27:45,193 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:27:45,195 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:27:45,195 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:27:45,196 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:27:45,196 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:27:44" (3/4) ... [2024-11-02 12:27:45,200 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 12:27:45,201 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:27:45,203 INFO L158 Benchmark]: Toolchain (without parser) took 3362.91ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 127.1MB in the beginning and 173.2MB in the end (delta: -46.1MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2024-11-02 12:27:45,204 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:27:45,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1509.42ms. Allocated memory is still 159.4MB. Free memory was 126.5MB in the beginning and 117.4MB in the end (delta: 9.1MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. [2024-11-02 12:27:45,206 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.90ms. Allocated memory is still 159.4MB. Free memory was 117.4MB in the beginning and 114.4MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:27:45,207 INFO L158 Benchmark]: Boogie Preprocessor took 29.34ms. Allocated memory is still 159.4MB. Free memory was 114.4MB in the beginning and 112.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:27:45,207 INFO L158 Benchmark]: RCFGBuilder took 904.60ms. Allocated memory is still 159.4MB. Free memory was 112.7MB in the beginning and 73.7MB in the end (delta: 39.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-02 12:27:45,208 INFO L158 Benchmark]: TraceAbstraction took 812.29ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 73.7MB in the beginning and 173.2MB in the end (delta: -99.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:27:45,209 INFO L158 Benchmark]: Witness Printer took 6.00ms. Allocated memory is still 232.8MB. Free memory was 173.2MB in the beginning and 173.2MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:27:45,216 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1509.42ms. Allocated memory is still 159.4MB. Free memory was 126.5MB in the beginning and 117.4MB in the end (delta: 9.1MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.90ms. Allocated memory is still 159.4MB. Free memory was 117.4MB in the beginning and 114.4MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.34ms. Allocated memory is still 159.4MB. Free memory was 114.4MB in the beginning and 112.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 904.60ms. Allocated memory is still 159.4MB. Free memory was 112.7MB in the beginning and 73.7MB in the end (delta: 39.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 812.29ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 73.7MB in the beginning and 173.2MB in the end (delta: -99.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.00ms. Allocated memory is still 232.8MB. Free memory was 173.2MB in the beginning and 173.2MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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, overapproximation of bitwiseOr at line 1552. 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, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1566] RET 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] [L1567] CALL CWE191_Integer_Underflow__int_rand_predec_31_bad() [L1550] int data; [L1551] data = 0 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1552] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] int dataCopy = data; [L1555] int data = dataCopy; 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] [L1557] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, 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: 0.7s, 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, 0.3s 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 [2024-11-02 12:27:45,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2 --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 2649b1239dfd4d32a381247ed4f3ea4d3759b9bf4f4dfb0870461a76ea95d255 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:27:47,939 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:27:48,076 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-02 12:27:48,085 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:27:48,087 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:27:48,134 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:27:48,137 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:27:48,138 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:27:48,139 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:27:48,141 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:27:48,142 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:27:48,143 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:27:48,143 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:27:48,146 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:27:48,147 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:27:48,147 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:27:48,148 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:27:48,149 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:27:48,149 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:27:48,149 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:27:48,150 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:27:48,154 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:27:48,154 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:27:48,155 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 12:27:48,155 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:27:48,155 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 12:27:48,156 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 12:27:48,156 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:27:48,156 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:27:48,157 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:27:48,157 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:27:48,160 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 12:27:48,161 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:27:48,161 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:27:48,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:27:48,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:27:48,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:27:48,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:27:48,164 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 12:27:48,164 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 12:27:48,164 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:27:48,165 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:27:48,166 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:27:48,166 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_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2649b1239dfd4d32a381247ed4f3ea4d3759b9bf4f4dfb0870461a76ea95d255 [2024-11-02 12:27:48,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:27:48,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:27:48,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:27:48,664 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:27:48,668 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:27:48,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i Unable to find full path for "g++" [2024-11-02 12:27:51,081 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:27:51,607 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:27:51,610 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i [2024-11-02 12:27:51,647 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/data/dc02da98b/0e676938e2bb40c48301baa394c367a8/FLAG41965c45a [2024-11-02 12:27:51,673 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/data/dc02da98b/0e676938e2bb40c48301baa394c367a8 [2024-11-02 12:27:51,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:27:51,680 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:27:51,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:27:51,682 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:27:51,689 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:27:51,690 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:27:51" (1/1) ... [2024-11-02 12:27:51,692 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e1fae1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:51, skipping insertion in model container [2024-11-02 12:27:51,692 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:27:51" (1/1) ... [2024-11-02 12:27:51,795 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:27:53,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:27:53,146 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:27:53,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:27:53,422 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:27:53,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53 WrapperNode [2024-11-02 12:27:53,422 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:27:53,424 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:27:53,424 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:27:53,424 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:27:53,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,472 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,511 INFO L138 Inliner]: procedures = 502, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2024-11-02 12:27:53,511 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:27:53,514 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:27:53,514 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:27:53,514 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:27:53,525 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,533 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,533 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,553 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,556 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,562 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,566 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:27:53,567 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:27:53,567 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:27:53,567 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:27:53,568 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (1/1) ... [2024-11-02 12:27:53,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:27:53,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:27:53,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:27:53,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:27:53,653 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-02 12:27:53,653 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-02 12:27:53,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:27:53,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:27:53,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:27:53,866 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:27:53,869 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:27:54,049 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-02 12:27:54,049 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:27:54,060 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:27:54,060 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:27:54,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:27:54 BoogieIcfgContainer [2024-11-02 12:27:54,061 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:27:54,064 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:27:54,064 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:27:54,067 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:27:54,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:27:51" (1/3) ... [2024-11-02 12:27:54,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b150d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:27:54, skipping insertion in model container [2024-11-02 12:27:54,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:53" (2/3) ... [2024-11-02 12:27:54,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b150d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:27:54, skipping insertion in model container [2024-11-02 12:27:54,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:27:54" (3/3) ... [2024-11-02 12:27:54,071 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_31_bad.i [2024-11-02 12:27:54,089 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:27:54,089 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-02 12:27:54,162 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:27:54,170 INFO L333 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, 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;@6b921907, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:27:54,170 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-02 12:27:54,175 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 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) [2024-11-02 12:27:54,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-02 12:27:54,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:27:54,184 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:27:54,185 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-02 12:27:54,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:27:54,192 INFO L85 PathProgramCache]: Analyzing trace with hash 51472802, now seen corresponding path program 1 times [2024-11-02 12:27:54,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:27:54,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614416076] [2024-11-02 12:27:54,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:27:54,210 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 [2024-11-02 12:27:54,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:27:54,214 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:27:54,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:27:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:27:54,341 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:27:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:27:54,413 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-02 12:27:54,415 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:27:54,417 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-02 12:27:54,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-02 12:27:54,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/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)] Ended with exit code 0 [2024-11-02 12:27:54,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:27:54,626 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 12:27:54,649 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:27:54,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:27:54 BoogieIcfgContainer [2024-11-02 12:27:54,652 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:27:54,653 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:27:54,653 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:27:54,653 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:27:54,654 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:27:54" (3/4) ... [2024-11-02 12:27:54,657 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 12:27:54,658 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:27:54,660 INFO L158 Benchmark]: Toolchain (without parser) took 2981.25ms. Allocated memory was 75.5MB in the beginning and 107.0MB in the end (delta: 31.5MB). Free memory was 48.4MB in the beginning and 54.9MB in the end (delta: -6.5MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2024-11-02 12:27:54,661 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 75.5MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:27:54,662 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1741.01ms. Allocated memory was 75.5MB in the beginning and 107.0MB in the end (delta: 31.5MB). Free memory was 48.1MB in the beginning and 60.2MB in the end (delta: -12.1MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2024-11-02 12:27:54,662 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.85ms. Allocated memory is still 107.0MB. Free memory was 60.2MB in the beginning and 57.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:27:54,663 INFO L158 Benchmark]: Boogie Preprocessor took 52.04ms. Allocated memory is still 107.0MB. Free memory was 57.6MB in the beginning and 55.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:27:54,664 INFO L158 Benchmark]: RCFGBuilder took 494.74ms. Allocated memory is still 107.0MB. Free memory was 55.5MB in the beginning and 72.5MB in the end (delta: -17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-02 12:27:54,665 INFO L158 Benchmark]: TraceAbstraction took 588.76ms. Allocated memory is still 107.0MB. Free memory was 72.2MB in the beginning and 55.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-02 12:27:54,666 INFO L158 Benchmark]: Witness Printer took 5.85ms. Allocated memory is still 107.0MB. Free memory was 55.4MB in the beginning and 54.9MB in the end (delta: 563.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:27:54,669 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 75.5MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1741.01ms. Allocated memory was 75.5MB in the beginning and 107.0MB in the end (delta: 31.5MB). Free memory was 48.1MB in the beginning and 60.2MB in the end (delta: -12.1MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.85ms. Allocated memory is still 107.0MB. Free memory was 60.2MB in the beginning and 57.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.04ms. Allocated memory is still 107.0MB. Free memory was 57.6MB in the beginning and 55.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 494.74ms. Allocated memory is still 107.0MB. Free memory was 55.5MB in the beginning and 72.5MB in the end (delta: -17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 588.76ms. Allocated memory is still 107.0MB. Free memory was 72.2MB in the beginning and 55.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.85ms. Allocated memory is still 107.0MB. Free memory was 55.4MB in the beginning and 54.9MB in the end (delta: 563.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1566] RET 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] [L1567] CALL CWE191_Integer_Underflow__int_rand_predec_31_bad() [L1550] int data; [L1551] data = 0 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] int dataCopy = data; [L1555] int data = dataCopy; 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] [L1557] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, 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, 21 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=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, 11 NumberOfCodeBlocks, 11 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 [2024-11-02 12:27:54,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ab1b3a0-a455-4781-b2e2-d3d778be3d97/bin/utaipan-verify-DbMuA5NWw2/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample