./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_01_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 17247b2da04193b56d03093b99ba117a04871cc4a2947503ed889a6135af0678 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:26:54,955 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:26:55,071 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-08 18:26:55,082 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:26:55,083 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:26:55,130 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:26:55,132 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:26:55,133 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:26:55,134 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:26:55,134 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:26:55,136 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:26:55,137 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:26:55,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:26:55,138 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:26:55,138 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:26:55,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:26:55,141 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:26:55,142 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:26:55,142 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:26:55,142 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:26:55,143 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:26:55,147 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:26:55,147 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:26:55,147 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:26:55,148 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:26:55,148 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:26:55,148 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:26:55,148 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:26:55,149 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:26:55,149 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:26:55,149 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:26:55,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:26:55,150 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:26:55,150 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:26:55,150 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:26:55,151 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:26:55,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:26:55,151 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:26:55,152 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:26:55,153 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:26:55,153 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:26:55,153 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17247b2da04193b56d03093b99ba117a04871cc4a2947503ed889a6135af0678 [2024-11-08 18:26:55,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:26:55,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:26:55,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:26:55,553 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:26:55,554 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:26:55,555 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_01_bad.i Unable to find full path for "g++" [2024-11-08 18:26:57,598 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:26:57,992 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:26:57,993 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_01_bad.i [2024-11-08 18:26:58,013 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/data/b5ff12e42/0258ddfb73a34c3ea1cd930aa594b159/FLAG56e44b86f [2024-11-08 18:26:58,034 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/data/b5ff12e42/0258ddfb73a34c3ea1cd930aa594b159 [2024-11-08 18:26:58,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:26:58,040 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:26:58,042 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:26:58,042 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:26:58,049 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:26:58,050 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:26:58" (1/1) ... [2024-11-08 18:26:58,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ce45fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:58, skipping insertion in model container [2024-11-08 18:26:58,053 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:26:58" (1/1) ... [2024-11-08 18:26:58,139 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:26:59,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:26:59,164 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:26:59,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:26:59,499 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:26:59,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:59 WrapperNode [2024-11-08 18:26:59,500 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:26:59,501 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:26:59,501 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:26:59,501 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:26:59,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:59" (1/1) ... [2024-11-08 18:26:59,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:59" (1/1) ... [2024-11-08 18:26:59,581 INFO L138 Inliner]: procedures = 497, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 99 [2024-11-08 18:26:59,581 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:26:59,582 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:26:59,583 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:26:59,584 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:26:59,594 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:59" (1/1) ... [2024-11-08 18:26:59,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:59" (1/1) ... [2024-11-08 18:26:59,597 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:59" (1/1) ... [2024-11-08 18:26:59,612 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-08 18:26:59,616 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:59" (1/1) ... [2024-11-08 18:26:59,616 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:59" (1/1) ... [2024-11-08 18:26:59,631 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:59" (1/1) ... [2024-11-08 18:26:59,635 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:59" (1/1) ... [2024-11-08 18:26:59,637 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:59" (1/1) ... [2024-11-08 18:26:59,638 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:59" (1/1) ... [2024-11-08 18:26:59,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:26:59,641 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:26:59,642 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:26:59,642 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:26:59,643 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:59" (1/1) ... [2024-11-08 18:26:59,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:26:59,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:26:59,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:26:59,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:26:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 18:26:59,716 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 18:26:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:26:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:26:59,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:26:59,910 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:26:59,912 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:27:00,138 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-08 18:27:00,138 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:27:00,153 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:27:00,154 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:27:00,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:27:00 BoogieIcfgContainer [2024-11-08 18:27:00,154 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:27:00,157 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:27:00,157 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:27:00,160 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:27:00,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:26:58" (1/3) ... [2024-11-08 18:27:00,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d85579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:27:00, skipping insertion in model container [2024-11-08 18:27:00,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:59" (2/3) ... [2024-11-08 18:27:00,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d85579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:27:00, skipping insertion in model container [2024-11-08 18:27:00,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:27:00" (3/3) ... [2024-11-08 18:27:00,163 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_01_bad.i [2024-11-08 18:27:00,181 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:27:00,182 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:27:00,248 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:27:00,255 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=PETRI_NET, 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;@3df1a08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:27:00,255 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 18:27:00,260 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 35 states have (on average 1.457142857142857) internal successors, (51), 37 states have internal predecessors, (51), 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) [2024-11-08 18:27:00,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 18:27:00,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:27:00,268 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:27:00,269 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 18:27:00,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:27:00,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1571693812, now seen corresponding path program 1 times [2024-11-08 18:27:00,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:27:00,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039691784] [2024-11-08 18:27:00,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:27:00,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:27:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:27:00,470 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:27:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:27:00,554 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:27:00,556 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:27:00,557 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 18:27:00,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 18:27:00,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:27:00,565 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 18:27:00,600 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:27:00,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:27:00 BoogieIcfgContainer [2024-11-08 18:27:00,604 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:27:00,605 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:27:00,606 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:27:00,606 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:27:00,606 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:27:00" (3/4) ... [2024-11-08 18:27:00,609 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:27:00,610 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:27:00,611 INFO L158 Benchmark]: Toolchain (without parser) took 2571.15ms. Allocated memory is still 148.9MB. Free memory was 117.7MB in the beginning and 60.6MB in the end (delta: 57.1MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. [2024-11-08 18:27:00,613 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 119.5MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:27:00,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1457.95ms. Allocated memory is still 148.9MB. Free memory was 117.7MB in the beginning and 101.3MB in the end (delta: 16.4MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2024-11-08 18:27:00,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.93ms. Allocated memory is still 148.9MB. Free memory was 101.3MB in the beginning and 98.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:27:00,615 INFO L158 Benchmark]: Boogie Preprocessor took 58.39ms. Allocated memory is still 148.9MB. Free memory was 98.3MB in the beginning and 96.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:27:00,616 INFO L158 Benchmark]: RCFGBuilder took 512.90ms. Allocated memory is still 148.9MB. Free memory was 96.2MB in the beginning and 79.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 18:27:00,617 INFO L158 Benchmark]: TraceAbstraction took 447.57ms. Allocated memory is still 148.9MB. Free memory was 79.4MB in the beginning and 60.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 18:27:00,617 INFO L158 Benchmark]: Witness Printer took 5.76ms. Allocated memory is still 148.9MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:27:00,621 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 119.5MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1457.95ms. Allocated memory is still 148.9MB. Free memory was 117.7MB in the beginning and 101.3MB in the end (delta: 16.4MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.93ms. Allocated memory is still 148.9MB. Free memory was 101.3MB in the beginning and 98.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.39ms. Allocated memory is still 148.9MB. Free memory was 98.3MB in the beginning and 96.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 512.90ms. Allocated memory is still 148.9MB. Free memory was 96.2MB in the beginning and 79.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 447.57ms. Allocated memory is still 148.9MB. Free memory was 79.4MB in the beginning and 60.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 5.76ms. Allocated memory is still 148.9MB. Free memory is still 60.6MB. There was no memory consumed. 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: 1554]: 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 1562. 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] [L1562] 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) [L1562] 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] [L1563] CALL CWE191_Integer_Underflow__int_rand_predec_01_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) 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] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() 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] 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] --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: 1554]: 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, 41 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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=41occurred 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, 0.1s 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 [2024-11-08 18:27:00,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 17247b2da04193b56d03093b99ba117a04871cc4a2947503ed889a6135af0678 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:27:03,038 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:27:03,128 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-08 18:27:03,133 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:27:03,133 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:27:03,134 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-08 18:27:03,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:27:03,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:27:03,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:27:03,159 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:27:03,160 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:27:03,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:27:03,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:27:03,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:27:03,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:27:03,162 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:27:03,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:27:03,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:27:03,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:27:03,164 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:27:03,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:27:03,165 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:27:03,166 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:27:03,166 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:27:03,167 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:27:03,167 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:27:03,168 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:27:03,168 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:27:03,168 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:27:03,169 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:27:03,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:27:03,170 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:27:03,170 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:27:03,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:27:03,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:27:03,171 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:27:03,172 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:27:03,172 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:27:03,172 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:27:03,173 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:27:03,173 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:27:03,174 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:27:03,174 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:27:03,174 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:27:03,175 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17247b2da04193b56d03093b99ba117a04871cc4a2947503ed889a6135af0678 [2024-11-08 18:27:03,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:27:03,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:27:03,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:27:03,628 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:27:03,629 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:27:03,630 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_01_bad.i Unable to find full path for "g++" [2024-11-08 18:27:05,673 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:27:06,098 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:27:06,099 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_01_bad.i [2024-11-08 18:27:06,126 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/data/0147e5600/23cea4ad55fe449581fc0cb648e3c14c/FLAGc50a5c3bb [2024-11-08 18:27:06,241 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/data/0147e5600/23cea4ad55fe449581fc0cb648e3c14c [2024-11-08 18:27:06,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:27:06,245 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:27:06,246 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:27:06,246 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:27:06,252 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:27:06,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:27:06" (1/1) ... [2024-11-08 18:27:06,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2110e6e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:27:06, skipping insertion in model container [2024-11-08 18:27:06,254 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:27:06" (1/1) ... [2024-11-08 18:27:06,315 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:27:07,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:27:07,302 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:27:07,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:27:07,628 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:27:07,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:27:07 WrapperNode [2024-11-08 18:27:07,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:27:07,630 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:27:07,630 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:27:07,630 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:27:07,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:27:07" (1/1) ... [2024-11-08 18:27:07,666 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:27:07" (1/1) ... [2024-11-08 18:27:07,689 INFO L138 Inliner]: procedures = 502, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2024-11-08 18:27:07,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:27:07,690 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:27:07,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:27:07,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:27:07,704 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:27:07" (1/1) ... [2024-11-08 18:27:07,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:27:07" (1/1) ... [2024-11-08 18:27:07,708 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:27:07" (1/1) ... [2024-11-08 18:27:07,729 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-08 18:27:07,734 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:27:07" (1/1) ... [2024-11-08 18:27:07,734 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:27:07" (1/1) ... [2024-11-08 18:27:07,745 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:27:07" (1/1) ... [2024-11-08 18:27:07,750 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:27:07" (1/1) ... [2024-11-08 18:27:07,755 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:27:07" (1/1) ... [2024-11-08 18:27:07,757 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:27:07" (1/1) ... [2024-11-08 18:27:07,764 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:27:07,768 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:27:07,769 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:27:07,769 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:27:07,770 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:27:07" (1/1) ... [2024-11-08 18:27:07,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:27:07,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:27:07,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:27:07,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:27:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 18:27:07,856 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 18:27:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:27:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:27:07,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:27:08,095 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:27:08,097 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:27:08,281 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-08 18:27:08,281 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:27:08,296 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:27:08,297 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:27:08,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:27:08 BoogieIcfgContainer [2024-11-08 18:27:08,298 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:27:08,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:27:08,301 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:27:08,305 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:27:08,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:27:06" (1/3) ... [2024-11-08 18:27:08,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b87c3f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:27:08, skipping insertion in model container [2024-11-08 18:27:08,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:27:07" (2/3) ... [2024-11-08 18:27:08,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b87c3f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:27:08, skipping insertion in model container [2024-11-08 18:27:08,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:27:08" (3/3) ... [2024-11-08 18:27:08,308 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_01_bad.i [2024-11-08 18:27:08,330 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:27:08,330 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:27:08,424 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:27:08,431 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=PETRI_NET, 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;@2a427db2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:27:08,431 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 18:27:08,436 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) [2024-11-08 18:27:08,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 18:27:08,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:27:08,446 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:27:08,447 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 18:27:08,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:27:08,453 INFO L85 PathProgramCache]: Analyzing trace with hash 51472802, now seen corresponding path program 1 times [2024-11-08 18:27:08,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:27:08,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [961548520] [2024-11-08 18:27:08,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:27:08,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:27:08,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:27:08,474 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:27:08,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:27:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:27:08,610 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:27:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:27:08,681 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 18:27:08,683 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:27:08,685 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 18:27:08,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 18:27:08,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 18:27:08,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:27:08,899 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 18:27:08,958 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:27:08,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:27:08 BoogieIcfgContainer [2024-11-08 18:27:08,964 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:27:08,966 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:27:08,966 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:27:08,966 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:27:08,967 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:27:08" (3/4) ... [2024-11-08 18:27:08,974 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:27:08,976 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:27:08,978 INFO L158 Benchmark]: Toolchain (without parser) took 2733.37ms. Allocated memory was 62.9MB in the beginning and 109.1MB in the end (delta: 46.1MB). Free memory was 35.6MB in the beginning and 53.1MB in the end (delta: -17.5MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2024-11-08 18:27:08,979 INFO L158 Benchmark]: CDTParser took 1.54ms. Allocated memory is still 62.9MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 81.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:27:08,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1383.18ms. Allocated memory was 62.9MB in the beginning and 109.1MB in the end (delta: 46.1MB). Free memory was 35.4MB in the beginning and 48.1MB in the end (delta: -12.7MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2024-11-08 18:27:08,980 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.38ms. Allocated memory is still 109.1MB. Free memory was 47.4MB in the beginning and 44.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:27:08,984 INFO L158 Benchmark]: Boogie Preprocessor took 77.62ms. Allocated memory is still 109.1MB. Free memory was 44.6MB in the beginning and 41.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:27:08,985 INFO L158 Benchmark]: RCFGBuilder took 529.51ms. Allocated memory is still 109.1MB. Free memory was 41.8MB in the beginning and 69.9MB in the end (delta: -28.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2024-11-08 18:27:08,986 INFO L158 Benchmark]: TraceAbstraction took 663.47ms. Allocated memory is still 109.1MB. Free memory was 69.1MB in the beginning and 53.1MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 18:27:08,986 INFO L158 Benchmark]: Witness Printer took 11.01ms. Allocated memory is still 109.1MB. Free memory is still 53.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:27:08,991 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.54ms. Allocated memory is still 62.9MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 81.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1383.18ms. Allocated memory was 62.9MB in the beginning and 109.1MB in the end (delta: 46.1MB). Free memory was 35.4MB in the beginning and 48.1MB in the end (delta: -12.7MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.38ms. Allocated memory is still 109.1MB. Free memory was 47.4MB in the beginning and 44.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.62ms. Allocated memory is still 109.1MB. Free memory was 44.6MB in the beginning and 41.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 529.51ms. Allocated memory is still 109.1MB. Free memory was 41.8MB in the beginning and 69.9MB in the end (delta: -28.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * TraceAbstraction took 663.47ms. Allocated memory is still 109.1MB. Free memory was 69.1MB in the beginning and 53.1MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 11.01ms. Allocated memory is still 109.1MB. Free memory is still 53.1MB. There was no memory consumed. 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: 1554]: 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 1562. 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] [L1562] 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) [L1562] 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] [L1563] CALL CWE191_Integer_Underflow__int_rand_predec_01_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] --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: 1554]: 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 [2024-11-08 18:27:09,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d589de7a-33ad-415d-ba33-7e51e63ce1df/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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