./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-regression/test22-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_1e865237-0a29-48e4-a135-746f12bc250a/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e865237-0a29-48e4-a135-746f12bc250a/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e865237-0a29-48e4-a135-746f12bc250a/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e865237-0a29-48e4-a135-746f12bc250a/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test22-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e865237-0a29-48e4-a135-746f12bc250a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e865237-0a29-48e4-a135-746f12bc250a/bin/uautomizer-verify-uCwYo4JHxu --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 32bit --witnessprinter.graph.data.programhash 0ac3f9dde39c1c30daf84e7d2d3f68c4363e658cdbd9aae18974f8ff3d9b4fc7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:04:40,047 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:04:40,182 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e865237-0a29-48e4-a135-746f12bc250a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 08:04:40,186 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:04:40,187 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:04:40,209 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:04:40,210 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:04:40,211 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:04:40,212 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:04:40,212 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:04:40,213 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:04:40,214 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:04:40,214 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:04:40,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:04:40,216 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:04:40,216 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:04:40,217 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:04:40,218 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:04:40,218 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:04:40,219 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:04:40,219 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:04:40,220 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:04:40,221 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 08:04:40,225 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:04:40,226 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:04:40,226 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:04:40,227 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:04:40,227 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:04:40,228 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:04:40,228 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:04:40,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:04:40,229 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:04:40,229 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:04:40,230 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:04:40,230 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:04:40,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:04:40,230 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:04:40,231 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:04:40,231 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:04:40,231 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:04:40,232 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:04:40,232 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_1e865237-0a29-48e4-a135-746f12bc250a/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e865237-0a29-48e4-a135-746f12bc250a/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ac3f9dde39c1c30daf84e7d2d3f68c4363e658cdbd9aae18974f8ff3d9b4fc7 [2023-11-19 08:04:40,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:04:40,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:04:40,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:04:40,539 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:04:40,540 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:04:40,541 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e865237-0a29-48e4-a135-746f12bc250a/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-regression/test22-2.c [2023-11-19 08:04:43,643 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:04:43,922 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:04:43,922 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e865237-0a29-48e4-a135-746f12bc250a/sv-benchmarks/c/ldv-regression/test22-2.c [2023-11-19 08:04:43,931 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e865237-0a29-48e4-a135-746f12bc250a/bin/uautomizer-verify-uCwYo4JHxu/data/27693294f/f2051c67283a41f0921aae85f9fe4acb/FLAG8ff12971f [2023-11-19 08:04:43,949 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e865237-0a29-48e4-a135-746f12bc250a/bin/uautomizer-verify-uCwYo4JHxu/data/27693294f/f2051c67283a41f0921aae85f9fe4acb [2023-11-19 08:04:43,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:04:43,955 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:04:43,956 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:43,957 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:04:43,963 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:04:43,964 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:43" (1/1) ... [2023-11-19 08:04:43,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a22f160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:43, skipping insertion in model container [2023-11-19 08:04:43,966 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:43" (1/1) ... [2023-11-19 08:04:43,990 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:04:44,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:44,197 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:04:44,220 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:44,255 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:04:44,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:44 WrapperNode [2023-11-19 08:04:44,256 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:44,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:44,258 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:04:44,258 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:04:44,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:44" (1/1) ... [2023-11-19 08:04:44,293 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:44" (1/1) ... [2023-11-19 08:04:44,315 INFO L138 Inliner]: procedures = 16, calls = 27, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 95 [2023-11-19 08:04:44,316 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:44,317 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:04:44,317 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:04:44,318 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:04:44,327 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:44" (1/1) ... [2023-11-19 08:04:44,327 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:44" (1/1) ... [2023-11-19 08:04:44,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:44" (1/1) ... [2023-11-19 08:04:44,330 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:44" (1/1) ... [2023-11-19 08:04:44,338 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:44" (1/1) ... [2023-11-19 08:04:44,355 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:44" (1/1) ... [2023-11-19 08:04:44,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:44" (1/1) ... [2023-11-19 08:04:44,366 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:44" (1/1) ... [2023-11-19 08:04:44,369 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:04:44,370 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:04:44,370 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:04:44,370 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:04:44,374 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:44" (1/1) ... [2023-11-19 08:04:44,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:04:44,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e865237-0a29-48e4-a135-746f12bc250a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:44,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e865237-0a29-48e4-a135-746f12bc250a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:44,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e865237-0a29-48e4-a135-746f12bc250a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:04:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:04:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:04:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:04:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2023-11-19 08:04:44,451 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2023-11-19 08:04:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:04:44,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:04:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:04:44,535 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:04:44,537 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:04:44,747 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:04:44,756 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:04:44,757 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:04:44,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:44 BoogieIcfgContainer [2023-11-19 08:04:44,761 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:04:44,764 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:04:44,765 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:04:44,790 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:04:44,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:04:43" (1/3) ... [2023-11-19 08:04:44,791 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eea6e94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:44, skipping insertion in model container [2023-11-19 08:04:44,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:44" (2/3) ... [2023-11-19 08:04:44,791 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eea6e94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:44, skipping insertion in model container [2023-11-19 08:04:44,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:44" (3/3) ... [2023-11-19 08:04:44,793 INFO L112 eAbstractionObserver]: Analyzing ICFG test22-2.c [2023-11-19 08:04:44,826 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:04:44,826 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-19 08:04:44,931 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:04:44,938 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@5facb441, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:04:44,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-19 08:04:44,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 24 states have (on average 1.375) internal successors, (33), 28 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:04:44,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 08:04:44,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:44,952 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:44,952 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 08:04:44,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:44,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1920858197, now seen corresponding path program 1 times [2023-11-19 08:04:44,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:44,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845855077] [2023-11-19 08:04:44,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:44,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:45,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 08:04:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:45,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 08:04:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:45,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-19 08:04:45,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:45,284 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-19 08:04:45,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:45,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845855077] [2023-11-19 08:04:45,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845855077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:45,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:45,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:04:45,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518738584] [2023-11-19 08:04:45,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:45,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:04:45,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:45,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:45,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:45,343 INFO L87 Difference]: Start difference. First operand has 33 states, 24 states have (on average 1.375) internal successors, (33), 28 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 08:04:45,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:45,411 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2023-11-19 08:04:45,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:04:45,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2023-11-19 08:04:45,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:45,426 INFO L225 Difference]: With dead ends: 52 [2023-11-19 08:04:45,426 INFO L226 Difference]: Without dead ends: 24 [2023-11-19 08:04:45,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:45,435 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:45,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:45,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-19 08:04:45,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-11-19 08:04:45,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:04:45,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2023-11-19 08:04:45,489 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 21 [2023-11-19 08:04:45,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:45,492 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2023-11-19 08:04:45,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 08:04:45,493 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2023-11-19 08:04:45,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 08:04:45,495 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:45,496 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:45,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:04:45,497 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 08:04:45,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:45,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1920860119, now seen corresponding path program 1 times [2023-11-19 08:04:45,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:45,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645978435] [2023-11-19 08:04:45,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:45,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:45,592 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:04:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:45,677 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:04:45,684 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 08:04:45,686 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-19 08:04:45,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-19 08:04:45,689 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-19 08:04:45,690 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-19 08:04:45,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:04:45,695 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 08:04:45,706 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:04:45,729 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret10 [2023-11-19 08:04:45,730 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret11 [2023-11-19 08:04:45,731 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret12 [2023-11-19 08:04:45,734 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated [2023-11-19 08:04:45,734 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated [2023-11-19 08:04:45,735 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-11-19 08:04:45,735 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-11-19 08:04:45,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:04:45 BoogieIcfgContainer [2023-11-19 08:04:45,751 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:04:45,752 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:04:45,752 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:04:45,752 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:04:45,753 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:44" (3/4) ... [2023-11-19 08:04:45,754 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 08:04:45,776 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret10 [2023-11-19 08:04:45,776 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret11 [2023-11-19 08:04:45,777 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret12 [2023-11-19 08:04:45,777 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated [2023-11-19 08:04:45,778 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated [2023-11-19 08:04:45,778 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-11-19 08:04:45,778 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-11-19 08:04:45,840 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e865237-0a29-48e4-a135-746f12bc250a/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:04:45,840 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:04:45,841 INFO L158 Benchmark]: Toolchain (without parser) took 1886.40ms. Allocated memory is still 155.2MB. Free memory was 120.9MB in the beginning and 86.1MB in the end (delta: 34.9MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2023-11-19 08:04:45,841 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:04:45,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.14ms. Allocated memory is still 155.2MB. Free memory was 120.9MB in the beginning and 109.6MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 08:04:45,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.83ms. Allocated memory is still 155.2MB. Free memory was 109.6MB in the beginning and 108.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:04:45,843 INFO L158 Benchmark]: Boogie Preprocessor took 52.03ms. Allocated memory is still 155.2MB. Free memory was 108.3MB in the beginning and 107.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:04:45,843 INFO L158 Benchmark]: RCFGBuilder took 391.39ms. Allocated memory is still 155.2MB. Free memory was 107.0MB in the beginning and 94.5MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 08:04:45,844 INFO L158 Benchmark]: TraceAbstraction took 986.71ms. Allocated memory is still 155.2MB. Free memory was 93.7MB in the beginning and 89.2MB in the end (delta: 4.5MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2023-11-19 08:04:45,844 INFO L158 Benchmark]: Witness Printer took 88.19ms. Allocated memory is still 155.2MB. Free memory was 89.2MB in the beginning and 86.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:04:45,858 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.14ms. Allocated memory is still 155.2MB. Free memory was 120.9MB in the beginning and 109.6MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.83ms. Allocated memory is still 155.2MB. Free memory was 109.6MB in the beginning and 108.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.03ms. Allocated memory is still 155.2MB. Free memory was 108.3MB in the beginning and 107.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 391.39ms. Allocated memory is still 155.2MB. Free memory was 107.0MB in the beginning and 94.5MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 986.71ms. Allocated memory is still 155.2MB. Free memory was 93.7MB in the beginning and 89.2MB in the end (delta: 4.5MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. * Witness Printer took 88.19ms. Allocated memory is still 155.2MB. Free memory was 89.2MB in the beginning and 86.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret10 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret11 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret12 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret10 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret11 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret12 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 39]: integer overflow possible integer overflow possible We found a FailurePath: [L11] struct dummy d1, d2; VAL [d1={4:0}, d2={5:0}] [L34] CALL init() [L15] d1.a = __VERIFIER_nondet_int() [L16] d1.b = __VERIFIER_nondet_int() [L18] d2.a = __VERIFIER_nondet_int() [L19] d2.b = __VERIFIER_nondet_int() [L34] RET init() [L35] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L35] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, pd1={5:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L35] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, pd1={5:0}, pd2={5:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L36] int i = __VERIFIER_nondet_int(); [L37] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L37] EXPR (*pd2).a [L37] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 VAL [d1={4:0}, d2={5:0}, i=0, pd1={5:0}, pd2={5:0}, pd3={4:0}] [L37] COND TRUE pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L38] int *pa = &pd1->a; [L39] EXPR pd3->a VAL [d1={4:0}, d2={5:0}, i=0, pa={5:0}, pd1={5:0}, pd2={5:0}, pd3={4:0}] [L39] pd3->a - 10 VAL [d1={4:0}, d2={5:0}, i=0, pa={5:0}, pd1={5:0}, pd2={5:0}, pd3={4:0}] - UnprovableResult [Line: 39]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: 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, 33 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 35 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 9/9 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 proved your program to be incorrect! [2023-11-19 08:04:45,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e865237-0a29-48e4-a135-746f12bc250a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)