./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/Addition02WithOverflowBug.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_857928bf-3d65-43a0-95f0-6d0e3a7ec476/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_857928bf-3d65-43a0-95f0-6d0e3a7ec476/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_857928bf-3d65-43a0-95f0-6d0e3a7ec476/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_857928bf-3d65-43a0-95f0-6d0e3a7ec476/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive/Addition02WithOverflowBug.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_857928bf-3d65-43a0-95f0-6d0e3a7ec476/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_857928bf-3d65-43a0-95f0-6d0e3a7ec476/bin/utaipan-verify-t7M7D8N6sZ --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 32bit --witnessprinter.graph.data.programhash 4dc17171ab7e1d3edd86dad6d65587aa7dd0f9060f526fa057c22f6fe741258c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:16:59,105 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:16:59,242 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_857928bf-3d65-43a0-95f0-6d0e3a7ec476/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-19 05:16:59,252 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:16:59,253 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:16:59,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:16:59,296 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:16:59,297 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:16:59,298 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:16:59,304 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:16:59,304 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:16:59,305 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:16:59,306 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:16:59,308 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:16:59,308 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:16:59,308 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:16:59,309 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:16:59,309 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:16:59,310 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:16:59,310 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:16:59,311 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:16:59,311 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:16:59,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:16:59,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:16:59,313 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:16:59,313 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:16:59,314 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:16:59,314 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:16:59,315 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:16:59,315 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:16:59,316 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:16:59,316 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 05:16:59,316 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:16:59,317 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:16:59,317 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:16:59,317 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:16:59,317 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:16:59,318 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:16:59,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:16:59,318 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:16:59,318 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:16:59,319 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:16:59,319 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:16:59,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:16:59,319 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:16:59,320 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:16:59,320 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:16:59,320 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_857928bf-3d65-43a0-95f0-6d0e3a7ec476/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_857928bf-3d65-43a0-95f0-6d0e3a7ec476/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dc17171ab7e1d3edd86dad6d65587aa7dd0f9060f526fa057c22f6fe741258c [2023-11-19 05:16:59,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:16:59,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:16:59,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:16:59,742 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:16:59,742 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:16:59,744 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_857928bf-3d65-43a0-95f0-6d0e3a7ec476/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/recursive/Addition02WithOverflowBug.c [2023-11-19 05:17:03,017 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:17:03,238 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:17:03,239 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_857928bf-3d65-43a0-95f0-6d0e3a7ec476/sv-benchmarks/c/recursive/Addition02WithOverflowBug.c [2023-11-19 05:17:03,249 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_857928bf-3d65-43a0-95f0-6d0e3a7ec476/bin/utaipan-verify-t7M7D8N6sZ/data/4280b332e/23ea7f330b9c4658ab65ae6afc7550ea/FLAGbdcffd49c [2023-11-19 05:17:03,265 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_857928bf-3d65-43a0-95f0-6d0e3a7ec476/bin/utaipan-verify-t7M7D8N6sZ/data/4280b332e/23ea7f330b9c4658ab65ae6afc7550ea [2023-11-19 05:17:03,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:17:03,271 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:17:03,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:03,273 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:17:03,288 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:17:03,289 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:03" (1/1) ... [2023-11-19 05:17:03,291 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27b51bc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:03, skipping insertion in model container [2023-11-19 05:17:03,291 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:03" (1/1) ... [2023-11-19 05:17:03,315 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:17:03,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:03,511 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:17:03,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:03,562 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:17:03,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:03 WrapperNode [2023-11-19 05:17:03,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:03,565 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:03,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:17:03,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:17:03,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:03" (1/1) ... [2023-11-19 05:17:03,588 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:03" (1/1) ... [2023-11-19 05:17:03,612 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2023-11-19 05:17:03,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:03,614 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:17:03,615 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:17:03,615 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:17:03,628 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:03" (1/1) ... [2023-11-19 05:17:03,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:03" (1/1) ... [2023-11-19 05:17:03,643 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:03" (1/1) ... [2023-11-19 05:17:03,643 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:03" (1/1) ... [2023-11-19 05:17:03,647 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:03" (1/1) ... [2023-11-19 05:17:03,649 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:03" (1/1) ... [2023-11-19 05:17:03,651 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:03" (1/1) ... [2023-11-19 05:17:03,652 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:03" (1/1) ... [2023-11-19 05:17:03,654 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:17:03,655 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:17:03,655 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:17:03,656 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:17:03,664 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:03" (1/1) ... [2023-11-19 05:17:03,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:17:03,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_857928bf-3d65-43a0-95f0-6d0e3a7ec476/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:17:03,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_857928bf-3d65-43a0-95f0-6d0e3a7ec476/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:17:03,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_857928bf-3d65-43a0-95f0-6d0e3a7ec476/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:17:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:17:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:17:03,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:17:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:17:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2023-11-19 05:17:03,755 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2023-11-19 05:17:03,833 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:17:03,836 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:17:04,076 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:17:04,129 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:17:04,130 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:17:04,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:04 BoogieIcfgContainer [2023-11-19 05:17:04,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:17:04,173 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:17:04,173 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:17:04,178 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:17:04,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:17:03" (1/3) ... [2023-11-19 05:17:04,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72467c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:17:04, skipping insertion in model container [2023-11-19 05:17:04,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:03" (2/3) ... [2023-11-19 05:17:04,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72467c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:17:04, skipping insertion in model container [2023-11-19 05:17:04,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:04" (3/3) ... [2023-11-19 05:17:04,235 INFO L112 eAbstractionObserver]: Analyzing ICFG Addition02WithOverflowBug.c [2023-11-19 05:17:04,269 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:17:04,270 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-19 05:17:04,341 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:17:04,351 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;@4521794, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:17:04,352 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-19 05:17:04,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 29 states have internal predecessors, (32), 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 05:17:04,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 05:17:04,368 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:04,369 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 05:17:04,369 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 05:17:04,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:04,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1609641216, now seen corresponding path program 1 times [2023-11-19 05:17:04,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:04,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073633165] [2023-11-19 05:17:04,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:04,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:04,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:17:04,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:17:04,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073633165] [2023-11-19 05:17:04,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073633165] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:04,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:04,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:17:04,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977592399] [2023-11-19 05:17:04,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:04,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:17:04,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:17:04,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:17:04,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:17:04,868 INFO L87 Difference]: Start difference. First operand has 34 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 29 states have internal predecessors, (32), 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 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:05,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:05,093 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2023-11-19 05:17:05,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:17:05,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-19 05:17:05,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:05,108 INFO L225 Difference]: With dead ends: 62 [2023-11-19 05:17:05,109 INFO L226 Difference]: Without dead ends: 60 [2023-11-19 05:17:05,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:17:05,117 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 59 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:05,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 87 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:17:05,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-19 05:17:05,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 51. [2023-11-19 05:17:05,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 34 states have (on average 1.6470588235294117) internal successors, (56), 43 states have internal predecessors, (56), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 05:17:05,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2023-11-19 05:17:05,190 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 6 [2023-11-19 05:17:05,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:05,191 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2023-11-19 05:17:05,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:05,192 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2023-11-19 05:17:05,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 05:17:05,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:05,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:05,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:17:05,194 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 05:17:05,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:05,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1640740873, now seen corresponding path program 1 times [2023-11-19 05:17:05,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:05,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660017822] [2023-11-19 05:17:05,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:05,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:17:05,231 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:17:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:17:05,278 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:17:05,278 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:17:05,280 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-11-19 05:17:05,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-11-19 05:17:05,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-11-19 05:17:05,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-11-19 05:17:05,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2023-11-19 05:17:05,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2023-11-19 05:17:05,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-11-19 05:17:05,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-11-19 05:17:05,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-11-19 05:17:05,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-11-19 05:17:05,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:17:05,300 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 05:17:05,307 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:17:05,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:17:05 BoogieIcfgContainer [2023-11-19 05:17:05,330 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:17:05,331 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:17:05,331 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:17:05,332 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:17:05,332 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:04" (3/4) ... [2023-11-19 05:17:05,333 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 05:17:05,372 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_857928bf-3d65-43a0-95f0-6d0e3a7ec476/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:17:05,372 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:17:05,373 INFO L158 Benchmark]: Toolchain (without parser) took 2102.38ms. Allocated memory is still 146.8MB. Free memory was 105.7MB in the beginning and 87.6MB in the end (delta: 18.1MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2023-11-19 05:17:05,373 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 109.1MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:17:05,374 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.15ms. Allocated memory is still 146.8MB. Free memory was 105.6MB in the beginning and 94.6MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:17:05,374 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.47ms. Allocated memory is still 146.8MB. Free memory was 94.6MB in the beginning and 93.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:17:05,375 INFO L158 Benchmark]: Boogie Preprocessor took 39.87ms. Allocated memory is still 146.8MB. Free memory was 93.4MB in the beginning and 92.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:17:05,375 INFO L158 Benchmark]: RCFGBuilder took 514.11ms. Allocated memory is still 146.8MB. Free memory was 92.2MB in the beginning and 120.8MB in the end (delta: -28.6MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2023-11-19 05:17:05,376 INFO L158 Benchmark]: TraceAbstraction took 1157.36ms. Allocated memory is still 146.8MB. Free memory was 120.8MB in the beginning and 88.9MB in the end (delta: 31.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-19 05:17:05,376 INFO L158 Benchmark]: Witness Printer took 41.05ms. Allocated memory is still 146.8MB. Free memory was 88.9MB in the beginning and 87.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:17:05,378 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 109.1MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.15ms. Allocated memory is still 146.8MB. Free memory was 105.6MB in the beginning and 94.6MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.47ms. Allocated memory is still 146.8MB. Free memory was 94.6MB in the beginning and 93.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.87ms. Allocated memory is still 146.8MB. Free memory was 93.4MB in the beginning and 92.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 514.11ms. Allocated memory is still 146.8MB. Free memory was 92.2MB in the beginning and 120.8MB in the end (delta: -28.6MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1157.36ms. Allocated memory is still 146.8MB. Free memory was 120.8MB in the beginning and 88.9MB in the end (delta: 31.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 41.05ms. Allocated memory is still 146.8MB. Free memory was 88.9MB in the beginning and 87.6MB in the end (delta: 1.3MB). 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 - CounterExampleResult [Line: 23]: integer overflow possible integer overflow possible We found a FailurePath: [L29] int m = __VERIFIER_nondet_int(); [L30] int n = __VERIFIER_nondet_int(); [L31] CALL addition(m,n) VAL [\old(m)=-2147483648, \old(n)=-1] [L16] COND FALSE !(n == 0) VAL [\old(m)=-2147483648, \old(n)=-1, m=-2147483648, n=-1] [L19] COND FALSE !(n > 0) VAL [\old(m)=-2147483648, \old(n)=-1, m=-2147483648, n=-1] [L22] COND TRUE n < 0 VAL [\old(m)=-2147483648, \old(n)=-1, m=-2147483648, n=-1] [L23] m-1 VAL [\old(m)=-2147483648, \old(n)=-1, m=-2147483648, n=-1] - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 23]: 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, 34 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 23 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2023-11-19 05:17:05,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_857928bf-3d65-43a0-95f0-6d0e3a7ec476/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)