./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/signedintegeroverflow-regression/AdditionIntMin.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8304003-9d0d-4559-b2ed-cb84e1e419bb/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8304003-9d0d-4559-b2ed-cb84e1e419bb/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8304003-9d0d-4559-b2ed-cb84e1e419bb/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8304003-9d0d-4559-b2ed-cb84e1e419bb/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/signedintegeroverflow-regression/AdditionIntMin.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8304003-9d0d-4559-b2ed-cb84e1e419bb/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8304003-9d0d-4559-b2ed-cb84e1e419bb/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 27b7f4ca13f89942926d688f9661c8b9db8ca724ecc8df8ad72d9c1c501fca7e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:41:20,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:41:20,218 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8304003-9d0d-4559-b2ed-cb84e1e419bb/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 18:41:20,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:41:20,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:41:20,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:41:20,249 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:41:20,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:41:20,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:41:20,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:41:20,251 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:41:20,252 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:41:20,252 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:41:20,253 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:41:20,253 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:41:20,254 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:41:20,254 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:41:20,255 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:41:20,255 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:41:20,256 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:41:20,256 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:41:20,257 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:41:20,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:41:20,258 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:41:20,258 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:41:20,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:41:20,259 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:41:20,260 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:41:20,260 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:41:20,261 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 18:41:20,261 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 18:41:20,261 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:41:20,262 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:41:20,262 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:41:20,263 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:41:20,263 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:41:20,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:41:20,264 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:41:20,264 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:41:20,264 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:41:20,265 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:41:20,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:41:20,266 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:41:20,266 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:41:20,266 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:41:20,266 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:41:20,266 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8304003-9d0d-4559-b2ed-cb84e1e419bb/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8304003-9d0d-4559-b2ed-cb84e1e419bb/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27b7f4ca13f89942926d688f9661c8b9db8ca724ecc8df8ad72d9c1c501fca7e [2023-12-02 18:41:20,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:41:20,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:41:20,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:41:20,520 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:41:20,520 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:41:20,522 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8304003-9d0d-4559-b2ed-cb84e1e419bb/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/signedintegeroverflow-regression/AdditionIntMin.i [2023-12-02 18:41:23,288 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:41:23,527 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:41:23,528 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8304003-9d0d-4559-b2ed-cb84e1e419bb/sv-benchmarks/c/signedintegeroverflow-regression/AdditionIntMin.i [2023-12-02 18:41:23,542 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8304003-9d0d-4559-b2ed-cb84e1e419bb/bin/utaipan-verify-nQ1chXbOIh/data/2c066f099/8634c875ff35424994840916cbd1f4b6/FLAG340c995d7 [2023-12-02 18:41:23,554 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8304003-9d0d-4559-b2ed-cb84e1e419bb/bin/utaipan-verify-nQ1chXbOIh/data/2c066f099/8634c875ff35424994840916cbd1f4b6 [2023-12-02 18:41:23,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:41:23,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:41:23,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:41:23,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:41:23,563 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:41:23,564 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:41:23" (1/1) ... [2023-12-02 18:41:23,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55190ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:23, skipping insertion in model container [2023-12-02 18:41:23,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:41:23" (1/1) ... [2023-12-02 18:41:23,600 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:41:23,812 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:41:23,817 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:41:23,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:41:23,869 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:41:23,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:23 WrapperNode [2023-12-02 18:41:23,869 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:41:23,870 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:41:23,870 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:41:23,871 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:41:23,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:23" (1/1) ... [2023-12-02 18:41:23,886 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:23" (1/1) ... [2023-12-02 18:41:23,900 INFO L138 Inliner]: procedures = 104, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2023-12-02 18:41:23,901 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:41:23,901 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:41:23,901 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:41:23,902 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:41:23,908 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:23" (1/1) ... [2023-12-02 18:41:23,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:23" (1/1) ... [2023-12-02 18:41:23,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:23" (1/1) ... [2023-12-02 18:41:23,910 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:23" (1/1) ... [2023-12-02 18:41:23,913 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:23" (1/1) ... [2023-12-02 18:41:23,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:23" (1/1) ... [2023-12-02 18:41:23,915 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:23" (1/1) ... [2023-12-02 18:41:23,916 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:23" (1/1) ... [2023-12-02 18:41:23,917 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:41:23,918 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:41:23,918 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:41:23,918 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:41:23,919 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:23" (1/1) ... [2023-12-02 18:41:23,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:41:23,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8304003-9d0d-4559-b2ed-cb84e1e419bb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:41:23,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8304003-9d0d-4559-b2ed-cb84e1e419bb/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:41:23,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8304003-9d0d-4559-b2ed-cb84e1e419bb/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:41:23,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:41:23,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:41:24,064 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:41:24,066 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:41:24,164 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:41:24,183 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:41:24,184 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 18:41:24,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:41:24 BoogieIcfgContainer [2023-12-02 18:41:24,186 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:41:24,189 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:41:24,189 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:41:24,193 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:41:24,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:41:23" (1/3) ... [2023-12-02 18:41:24,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b7f5ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:41:24, skipping insertion in model container [2023-12-02 18:41:24,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:41:23" (2/3) ... [2023-12-02 18:41:24,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b7f5ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:41:24, skipping insertion in model container [2023-12-02 18:41:24,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:41:24" (3/3) ... [2023-12-02 18:41:24,196 INFO L112 eAbstractionObserver]: Analyzing ICFG AdditionIntMin.i [2023-12-02 18:41:24,218 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:41:24,218 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-02 18:41:24,269 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:41:24,277 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2528ebc5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:41:24,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-02 18:41:24,282 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 5 states have (on average 1.8) internal successors, (9), 9 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 18:41:24,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 18:41:24,287 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:41:24,287 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-12-02 18:41:24,288 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)] === [2023-12-02 18:41:24,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:41:24,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1398, now seen corresponding path program 1 times [2023-12-02 18:41:24,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:41:24,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141458957] [2023-12-02 18:41:24,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:41:24,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:41:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:41:24,385 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 18:41:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:41:24,406 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 18:41:24,408 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 18:41:24,409 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-12-02 18:41:24,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-12-02 18:41:24,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-12-02 18:41:24,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-12-02 18:41:24,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 18:41:24,417 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 18:41:24,423 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:41:24,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:41:24 BoogieIcfgContainer [2023-12-02 18:41:24,437 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:41:24,438 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:41:24,438 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:41:24,438 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:41:24,439 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:41:24" (3/4) ... [2023-12-02 18:41:24,439 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-12-02 18:41:24,473 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8304003-9d0d-4559-b2ed-cb84e1e419bb/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 18:41:24,474 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:41:24,475 INFO L158 Benchmark]: Toolchain (without parser) took 917.48ms. Allocated memory is still 140.5MB. Free memory was 108.2MB in the beginning and 67.4MB in the end (delta: 40.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-12-02 18:41:24,475 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 107.0MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:41:24,476 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.49ms. Allocated memory is still 140.5MB. Free memory was 107.7MB in the beginning and 93.6MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 18:41:24,477 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.68ms. Allocated memory is still 140.5MB. Free memory was 93.6MB in the beginning and 91.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:41:24,477 INFO L158 Benchmark]: Boogie Preprocessor took 15.81ms. Allocated memory is still 140.5MB. Free memory was 91.9MB in the beginning and 91.1MB in the end (delta: 885.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:41:24,478 INFO L158 Benchmark]: RCFGBuilder took 267.77ms. Allocated memory is still 140.5MB. Free memory was 91.1MB in the beginning and 82.2MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 18:41:24,479 INFO L158 Benchmark]: TraceAbstraction took 248.35ms. Allocated memory is still 140.5MB. Free memory was 81.5MB in the beginning and 68.7MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 18:41:24,479 INFO L158 Benchmark]: Witness Printer took 35.99ms. Allocated memory is still 140.5MB. Free memory was 68.7MB in the beginning and 67.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:41:24,491 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 107.0MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.49ms. Allocated memory is still 140.5MB. Free memory was 107.7MB in the beginning and 93.6MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.68ms. Allocated memory is still 140.5MB. Free memory was 93.6MB in the beginning and 91.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.81ms. Allocated memory is still 140.5MB. Free memory was 91.9MB in the beginning and 91.1MB in the end (delta: 885.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 267.77ms. Allocated memory is still 140.5MB. Free memory was 91.1MB in the beginning and 82.2MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 248.35ms. Allocated memory is still 140.5MB. Free memory was 81.5MB in the beginning and 68.7MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 35.99ms. Allocated memory is still 140.5MB. Free memory was 68.7MB in the beginning and 67.4MB in the end (delta: 1.3MB). 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 - CounterExampleResult [Line: 333]: integer overflow possible integer overflow possible We found a FailurePath: [L332] int minInt = -2147483647 - 1; VAL [minInt=-2147483648] [L333] minInt + -1 VAL [minInt=-2147483648] - UnprovableResult [Line: 333]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 333]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 333]: 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 1 procedures, 10 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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=10occurred 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, 2 NumberOfCodeBlocks, 2 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 proved your program to be incorrect! [2023-12-02 18:41:24,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8304003-9d0d-4559-b2ed-cb84e1e419bb/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)