./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_68_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/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_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/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_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/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 eb5f999f77ab51b49a4c5e9942d8bebe32c00f89ee135bf35b2b5c1f5425bfe9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:16:22,169 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:16:22,268 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-08 18:16:22,274 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:16:22,274 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:16:22,302 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:16:22,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:16:22,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:16:22,304 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:16:22,304 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:16:22,306 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:16:22,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:16:22,307 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:16:22,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:16:22,310 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:16:22,310 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:16:22,311 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:16:22,311 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:16:22,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:16:22,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:16:22,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:16:22,317 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:16:22,317 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:16:22,317 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:16:22,318 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:16:22,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:16:22,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:16:22,319 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:16:22,319 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:16:22,319 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:16:22,320 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:16:22,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:16:22,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:16:22,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:16:22,325 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:16:22,326 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:16:22,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:16:22,326 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:16:22,326 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:16:22,328 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:16:22,328 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:16:22,329 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_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb5f999f77ab51b49a4c5e9942d8bebe32c00f89ee135bf35b2b5c1f5425bfe9 [2024-11-08 18:16:22,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:16:22,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:16:22,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:16:22,646 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:16:22,647 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:16:22,649 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_68_bad.i Unable to find full path for "g++" [2024-11-08 18:16:24,975 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:16:25,394 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:16:25,395 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_68_bad.i [2024-11-08 18:16:25,427 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/data/54c70119d/28648a4f983245bd9327222af8d989b0/FLAG441f9af55 [2024-11-08 18:16:25,545 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/data/54c70119d/28648a4f983245bd9327222af8d989b0 [2024-11-08 18:16:25,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:16:25,550 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:16:25,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:16:25,552 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:16:25,561 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:16:25,562 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:16:25" (1/1) ... [2024-11-08 18:16:25,563 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6333e261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:25, skipping insertion in model container [2024-11-08 18:16:25,564 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:16:25" (1/1) ... [2024-11-08 18:16:25,658 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:16:27,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:16:27,167 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:16:27,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:16:27,528 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:16:27,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:27 WrapperNode [2024-11-08 18:16:27,529 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:16:27,531 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:16:27,531 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:16:27,532 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:16:27,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:27" (1/1) ... [2024-11-08 18:16:27,587 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:27" (1/1) ... [2024-11-08 18:16:27,622 INFO L138 Inliner]: procedures = 498, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 103 [2024-11-08 18:16:27,623 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:16:27,624 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:16:27,624 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:16:27,624 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:16:27,640 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:27" (1/1) ... [2024-11-08 18:16:27,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:27" (1/1) ... [2024-11-08 18:16:27,645 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:27" (1/1) ... [2024-11-08 18:16:27,659 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-08 18:16:27,659 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:27" (1/1) ... [2024-11-08 18:16:27,660 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:27" (1/1) ... [2024-11-08 18:16:27,666 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:27" (1/1) ... [2024-11-08 18:16:27,673 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:27" (1/1) ... [2024-11-08 18:16:27,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:27" (1/1) ... [2024-11-08 18:16:27,681 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:27" (1/1) ... [2024-11-08 18:16:27,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:16:27,686 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:16:27,686 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:16:27,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:16:27,691 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:27" (1/1) ... [2024-11-08 18:16:27,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:16:27,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:16:27,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:16:27,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:16:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 18:16:27,814 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 18:16:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:16:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:16:27,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:16:28,017 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:16:28,020 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:16:28,311 INFO L? ?]: Removed 57 outVars from TransFormulas that were not future-live. [2024-11-08 18:16:28,311 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:16:28,327 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:16:28,327 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:16:28,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:16:28 BoogieIcfgContainer [2024-11-08 18:16:28,328 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:16:28,331 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:16:28,331 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:16:28,336 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:16:28,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:16:25" (1/3) ... [2024-11-08 18:16:28,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e47c130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:16:28, skipping insertion in model container [2024-11-08 18:16:28,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:27" (2/3) ... [2024-11-08 18:16:28,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e47c130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:16:28, skipping insertion in model container [2024-11-08 18:16:28,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:16:28" (3/3) ... [2024-11-08 18:16:28,340 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_68_bad.i [2024-11-08 18:16:28,365 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:16:28,365 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:16:28,461 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:16:28,474 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;@197205b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:16:28,475 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 18:16:28,481 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 38 states have internal predecessors, (52), 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 18:16:28,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 18:16:28,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:16:28,492 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:16:28,493 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 18:16:28,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:16:28,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1664946168, now seen corresponding path program 1 times [2024-11-08 18:16:28,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:16:28,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268654751] [2024-11-08 18:16:28,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:16:28,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:16:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:16:28,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:16:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:16:28,846 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:16:28,848 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:16:28,849 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 18:16:28,852 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 18:16:28,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:16:28,857 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 18:16:28,884 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:16:28,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:16:28 BoogieIcfgContainer [2024-11-08 18:16:28,888 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:16:28,889 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:16:28,889 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:16:28,889 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:16:28,890 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:16:28" (3/4) ... [2024-11-08 18:16:28,894 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:16:28,895 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:16:28,897 INFO L158 Benchmark]: Toolchain (without parser) took 3346.13ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 94.6MB in the beginning and 128.0MB in the end (delta: -33.4MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2024-11-08 18:16:28,897 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 134.2MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:16:28,898 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1977.79ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 94.6MB in the beginning and 113.1MB in the end (delta: -18.5MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. [2024-11-08 18:16:28,899 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.98ms. Allocated memory is still 172.0MB. Free memory was 113.1MB in the beginning and 110.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:16:28,900 INFO L158 Benchmark]: Boogie Preprocessor took 61.57ms. Allocated memory is still 172.0MB. Free memory was 110.1MB in the beginning and 107.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:16:28,901 INFO L158 Benchmark]: RCFGBuilder took 642.15ms. Allocated memory is still 172.0MB. Free memory was 107.6MB in the beginning and 90.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 18:16:28,902 INFO L158 Benchmark]: TraceAbstraction took 557.11ms. Allocated memory is still 172.0MB. Free memory was 90.0MB in the beginning and 129.1MB in the end (delta: -39.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:16:28,903 INFO L158 Benchmark]: Witness Printer took 6.44ms. Allocated memory is still 172.0MB. Free memory was 129.1MB in the beginning and 128.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:16:28,907 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 134.2MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1977.79ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 94.6MB in the beginning and 113.1MB in the end (delta: -18.5MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.98ms. Allocated memory is still 172.0MB. Free memory was 113.1MB in the beginning and 110.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.57ms. Allocated memory is still 172.0MB. Free memory was 110.1MB in the beginning and 107.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 642.15ms. Allocated memory is still 172.0MB. Free memory was 107.6MB in the beginning and 90.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 557.11ms. Allocated memory is still 172.0MB. Free memory was 90.0MB in the beginning and 129.1MB in the end (delta: -39.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.44ms. Allocated memory is still 172.0MB. Free memory was 129.1MB in the beginning and 128.0MB in the end (delta: 1.1MB). 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: 1575]: 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 1563. 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); [L1549] int CWE191_Integer_Underflow__int_rand_predec_68_goodG2BData; VAL [CWE191_Integer_Underflow__int_rand_predec_68_goodG2BData=0, 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 printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_predec_68_goodG2BData=0, 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) [L1563] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_predec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL CWE191_Integer_Underflow__int_rand_predec_68_bad() [L1554] int data; [L1555] data = 0 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) VAL [CWE191_Integer_Underflow__int_rand_predec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() VAL [CWE191_Integer_Underflow__int_rand_predec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [CWE191_Integer_Underflow__int_rand_predec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] CWE191_Integer_Underflow__int_rand_predec_68_badData = data [L1558] CALL CWE191_Integer_Underflow__int_rand_predec_68b_badSink() [L1573] int data = CWE191_Integer_Underflow__int_rand_predec_68_badData; VAL [CWE191_Integer_Underflow__int_rand_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_rand_predec_68_goodG2BData=0, 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] [L1575] --data VAL [CWE191_Integer_Underflow__int_rand_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_rand_predec_68_goodG2BData=0, 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: 1575]: 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, 42 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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=42occurred 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 18:16:28,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/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_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/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_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/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 eb5f999f77ab51b49a4c5e9942d8bebe32c00f89ee135bf35b2b5c1f5425bfe9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:16:31,736 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:16:31,821 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-08 18:16:31,832 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:16:31,834 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:16:31,835 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-08 18:16:31,863 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:16:31,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:16:31,864 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:16:31,865 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:16:31,865 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:16:31,866 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:16:31,866 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:16:31,867 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:16:31,867 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:16:31,868 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:16:31,868 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:16:31,869 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:16:31,869 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:16:31,870 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:16:31,870 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:16:31,871 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:16:31,871 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:16:31,871 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:16:31,872 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:16:31,872 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:16:31,873 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:16:31,873 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:16:31,873 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:16:31,874 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:16:31,874 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:16:31,874 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:16:31,875 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:16:31,875 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:16:31,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:16:31,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:16:31,876 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:16:31,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:16:31,877 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:16:31,877 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:16:31,878 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:16:31,878 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:16:31,878 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:16:31,879 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:16:31,879 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_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb5f999f77ab51b49a4c5e9942d8bebe32c00f89ee135bf35b2b5c1f5425bfe9 [2024-11-08 18:16:32,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:16:32,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:16:32,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:16:32,302 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:16:32,303 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:16:32,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_68_bad.i Unable to find full path for "g++" [2024-11-08 18:16:34,469 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:16:34,967 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:16:34,970 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_68_bad.i [2024-11-08 18:16:34,995 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/data/cfb94218a/957c54c9d2da4627b96afdc3dfe8ef9d/FLAG027042184 [2024-11-08 18:16:35,015 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/data/cfb94218a/957c54c9d2da4627b96afdc3dfe8ef9d [2024-11-08 18:16:35,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:16:35,029 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:16:35,031 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:16:35,032 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:16:35,040 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:16:35,042 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:16:35" (1/1) ... [2024-11-08 18:16:35,043 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b3b137a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:35, skipping insertion in model container [2024-11-08 18:16:35,043 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:16:35" (1/1) ... [2024-11-08 18:16:35,117 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:16:36,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:16:36,150 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:16:36,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:16:36,508 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:16:36,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:36 WrapperNode [2024-11-08 18:16:36,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:16:36,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:16:36,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:16:36,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:16:36,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:36" (1/1) ... [2024-11-08 18:16:36,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:36" (1/1) ... [2024-11-08 18:16:36,589 INFO L138 Inliner]: procedures = 503, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2024-11-08 18:16:36,590 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:16:36,590 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:16:36,591 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:16:36,591 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:16:36,604 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:36" (1/1) ... [2024-11-08 18:16:36,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:36" (1/1) ... [2024-11-08 18:16:36,607 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:36" (1/1) ... [2024-11-08 18:16:36,618 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-08 18:16:36,618 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:36" (1/1) ... [2024-11-08 18:16:36,618 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:36" (1/1) ... [2024-11-08 18:16:36,625 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:36" (1/1) ... [2024-11-08 18:16:36,627 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:36" (1/1) ... [2024-11-08 18:16:36,630 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:36" (1/1) ... [2024-11-08 18:16:36,631 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:36" (1/1) ... [2024-11-08 18:16:36,635 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:16:36,636 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:16:36,636 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:16:36,636 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:16:36,637 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:36" (1/1) ... [2024-11-08 18:16:36,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:16:36,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:16:36,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:16:36,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:16:36,712 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 18:16:36,712 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 18:16:36,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:16:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:16:36,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:16:36,930 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:16:36,932 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:16:37,122 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-08 18:16:37,123 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:16:37,139 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:16:37,141 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:16:37,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:16:37 BoogieIcfgContainer [2024-11-08 18:16:37,142 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:16:37,146 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:16:37,146 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:16:37,150 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:16:37,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:16:35" (1/3) ... [2024-11-08 18:16:37,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ae7390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:16:37, skipping insertion in model container [2024-11-08 18:16:37,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:16:36" (2/3) ... [2024-11-08 18:16:37,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ae7390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:16:37, skipping insertion in model container [2024-11-08 18:16:37,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:16:37" (3/3) ... [2024-11-08 18:16:37,156 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_68_bad.i [2024-11-08 18:16:37,176 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:16:37,177 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:16:37,280 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:16:37,292 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;@31cf56ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:16:37,292 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 18:16:37,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 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 18:16:37,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 18:16:37,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:16:37,314 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:16:37,316 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 18:16:37,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:16:37,325 INFO L85 PathProgramCache]: Analyzing trace with hash 733378214, now seen corresponding path program 1 times [2024-11-08 18:16:37,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:16:37,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1559129333] [2024-11-08 18:16:37,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:16:37,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:16:37,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:16:37,349 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:16:37,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:16:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:16:37,556 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:16:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:16:37,644 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 18:16:37,648 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:16:37,650 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 18:16:37,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 18:16:37,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:16:37,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:16:37,858 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 18:16:37,887 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:16:37,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:16:37 BoogieIcfgContainer [2024-11-08 18:16:37,891 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:16:37,892 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:16:37,892 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:16:37,892 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:16:37,893 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:16:37" (3/4) ... [2024-11-08 18:16:37,897 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:16:37,898 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:16:37,900 INFO L158 Benchmark]: Toolchain (without parser) took 2870.40ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 46.7MB in the beginning and 61.2MB in the end (delta: -14.5MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2024-11-08 18:16:37,900 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 67.1MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:16:37,901 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1477.89ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 46.2MB in the beginning and 45.4MB in the end (delta: 853.5kB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. [2024-11-08 18:16:37,902 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.70ms. Allocated memory is still 98.6MB. Free memory was 45.4MB in the beginning and 68.6MB in the end (delta: -23.2MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2024-11-08 18:16:37,902 INFO L158 Benchmark]: Boogie Preprocessor took 44.55ms. Allocated memory is still 98.6MB. Free memory was 68.6MB in the beginning and 66.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:16:37,903 INFO L158 Benchmark]: RCFGBuilder took 506.24ms. Allocated memory is still 98.6MB. Free memory was 66.0MB in the beginning and 51.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 18:16:37,904 INFO L158 Benchmark]: TraceAbstraction took 744.94ms. Allocated memory is still 98.6MB. Free memory was 51.3MB in the beginning and 61.9MB in the end (delta: -10.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:16:37,904 INFO L158 Benchmark]: Witness Printer took 6.57ms. Allocated memory is still 98.6MB. Free memory was 61.9MB in the beginning and 61.2MB in the end (delta: 636.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:16:37,908 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 67.1MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1477.89ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 46.2MB in the beginning and 45.4MB in the end (delta: 853.5kB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.70ms. Allocated memory is still 98.6MB. Free memory was 45.4MB in the beginning and 68.6MB in the end (delta: -23.2MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.55ms. Allocated memory is still 98.6MB. Free memory was 68.6MB in the beginning and 66.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 506.24ms. Allocated memory is still 98.6MB. Free memory was 66.0MB in the beginning and 51.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 744.94ms. Allocated memory is still 98.6MB. Free memory was 51.3MB in the beginning and 61.9MB in the end (delta: -10.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.57ms. Allocated memory is still 98.6MB. Free memory was 61.9MB in the beginning and 61.2MB in the end (delta: 636.9kB). 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: 1575]: 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 1563. 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); [L1550] int CWE191_Integer_Underflow__int_rand_predec_68_goodB2GData; VAL [CWE191_Integer_Underflow__int_rand_predec_68_goodB2GData=0, 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 printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_predec_68_goodB2GData=0, 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) [L1563] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_predec_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL CWE191_Integer_Underflow__int_rand_predec_68_bad() [L1554] int data; [L1555] data = 0 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [CWE191_Integer_Underflow__int_rand_predec_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] CWE191_Integer_Underflow__int_rand_predec_68_badData = data [L1558] CALL CWE191_Integer_Underflow__int_rand_predec_68b_badSink() [L1573] int data = CWE191_Integer_Underflow__int_rand_predec_68_badData; VAL [CWE191_Integer_Underflow__int_rand_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_rand_predec_68_goodB2GData=0, 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] [L1575] --data VAL [CWE191_Integer_Underflow__int_rand_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_rand_predec_68_goodB2GData=0, 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: 1575]: 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, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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=22occurred 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 18:16:37,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7268eebc-e906-4cf1-ac9c-ef62fd8e2a2d/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample