./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f768466-2e2a-4511-b718-20794790b755/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f768466-2e2a-4511-b718-20794790b755/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f768466-2e2a-4511-b718-20794790b755/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f768466-2e2a-4511-b718-20794790b755/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f768466-2e2a-4511-b718-20794790b755/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f768466-2e2a-4511-b718-20794790b755/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash db1891a9bd072b88011322f279db8b4a1824beee21553f836baa305cd6d07cfb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:15:34,869 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:15:34,963 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f768466-2e2a-4511-b718-20794790b755/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-24 00:15:34,970 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:15:34,971 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:15:35,003 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:15:35,004 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:15:35,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:15:35,005 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:15:35,005 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:15:35,006 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:15:35,006 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:15:35,006 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:15:35,006 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:15:35,007 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:15:35,007 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:15:35,007 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:15:35,007 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:15:35,008 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:15:35,008 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:15:35,008 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:15:35,008 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:15:35,008 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 00:15:35,009 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:15:35,009 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:15:35,009 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:15:35,009 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:15:35,009 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:15:35,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:15:35,010 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:15:35,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:15:35,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:15:35,010 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:15:35,011 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:15:35,011 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:15:35,011 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:15:35,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:15:35,011 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:15:35,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:15:35,012 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:15:35,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:15:35,012 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:15:35,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:15:35,012 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:15:35,012 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:15:35,012 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:15:35,012 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:15:35,012 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_0f768466-2e2a-4511-b718-20794790b755/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db1891a9bd072b88011322f279db8b4a1824beee21553f836baa305cd6d07cfb [2024-11-24 00:15:35,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:15:35,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:15:35,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:15:35,414 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:15:35,414 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:15:35,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f768466-2e2a-4511-b718-20794790b755/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron4.c [2024-11-24 00:15:39,064 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f768466-2e2a-4511-b718-20794790b755/bin/uautomizer-verify-LYvppIcaGC/data/9dc757806/11e680ed88db424d9610aab56e6b3d22/FLAG2e2271901 [2024-11-24 00:15:39,464 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:15:39,465 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f768466-2e2a-4511-b718-20794790b755/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron4.c [2024-11-24 00:15:39,481 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f768466-2e2a-4511-b718-20794790b755/bin/uautomizer-verify-LYvppIcaGC/data/9dc757806/11e680ed88db424d9610aab56e6b3d22/FLAG2e2271901 [2024-11-24 00:15:39,669 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f768466-2e2a-4511-b718-20794790b755/bin/uautomizer-verify-LYvppIcaGC/data/9dc757806/11e680ed88db424d9610aab56e6b3d22 [2024-11-24 00:15:39,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:15:39,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:15:39,678 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:15:39,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:15:39,685 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:15:39,687 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:15:39" (1/1) ... [2024-11-24 00:15:39,688 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@635bbd8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:39, skipping insertion in model container [2024-11-24 00:15:39,691 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:15:39" (1/1) ... [2024-11-24 00:15:39,710 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:15:39,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:15:39,932 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:15:39,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:15:39,967 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:15:39,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:39 WrapperNode [2024-11-24 00:15:39,968 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:15:39,969 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:15:39,970 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:15:39,970 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:15:39,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:39" (1/1) ... [2024-11-24 00:15:39,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:39" (1/1) ... [2024-11-24 00:15:40,003 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74 [2024-11-24 00:15:40,004 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:15:40,004 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:15:40,005 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:15:40,005 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:15:40,016 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:39" (1/1) ... [2024-11-24 00:15:40,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:39" (1/1) ... [2024-11-24 00:15:40,017 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:39" (1/1) ... [2024-11-24 00:15:40,024 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-24 00:15:40,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:39" (1/1) ... [2024-11-24 00:15:40,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:39" (1/1) ... [2024-11-24 00:15:40,028 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:39" (1/1) ... [2024-11-24 00:15:40,029 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:39" (1/1) ... [2024-11-24 00:15:40,034 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:39" (1/1) ... [2024-11-24 00:15:40,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:39" (1/1) ... [2024-11-24 00:15:40,039 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:39" (1/1) ... [2024-11-24 00:15:40,041 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:15:40,045 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:15:40,046 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:15:40,046 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:15:40,047 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:39" (1/1) ... [2024-11-24 00:15:40,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:15:40,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f768466-2e2a-4511-b718-20794790b755/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:15:40,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f768466-2e2a-4511-b718-20794790b755/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:15:40,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f768466-2e2a-4511-b718-20794790b755/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:15:40,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:15:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:15:40,244 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:15:40,247 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:15:40,498 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-24 00:15:40,498 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:15:40,515 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:15:40,515 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 00:15:40,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:15:40 BoogieIcfgContainer [2024-11-24 00:15:40,519 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:15:40,523 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:15:40,523 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:15:40,529 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:15:40,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:15:39" (1/3) ... [2024-11-24 00:15:40,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d23805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:15:40, skipping insertion in model container [2024-11-24 00:15:40,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:15:39" (2/3) ... [2024-11-24 00:15:40,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d23805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:15:40, skipping insertion in model container [2024-11-24 00:15:40,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:15:40" (3/3) ... [2024-11-24 00:15:40,533 INFO L128 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-aaron4.c [2024-11-24 00:15:40,550 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:15:40,553 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-aaron4.c that has 1 procedures, 33 locations, 1 initial locations, 1 loop locations, and 10 error locations. [2024-11-24 00:15:40,627 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:15:40,649 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@33fb62c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:15:40,650 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-24 00:15:40,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 22 states have (on average 1.7727272727272727) internal successors, (39), 32 states have internal predecessors, (39), 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) [2024-11-24 00:15:40,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-24 00:15:40,666 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:15:40,666 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-24 00:15:40,667 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-24 00:15:40,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:15:40,677 INFO L85 PathProgramCache]: Analyzing trace with hash 28694788, now seen corresponding path program 1 times [2024-11-24 00:15:40,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:15:40,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362822377] [2024-11-24 00:15:40,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:15:40,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:15:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:15:40,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:15:40,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:15:40,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362822377] [2024-11-24 00:15:40,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362822377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:15:40,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:15:40,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:15:40,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317317083] [2024-11-24 00:15:40,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:15:40,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:15:40,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:15:40,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:15:40,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:15:40,953 INFO L87 Difference]: Start difference. First operand has 33 states, 22 states have (on average 1.7727272727272727) internal successors, (39), 32 states have internal predecessors, (39), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-24 00:15:41,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:15:41,010 INFO L93 Difference]: Finished difference Result 65 states and 78 transitions. [2024-11-24 00:15:41,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:15:41,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2024-11-24 00:15:41,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:15:41,028 INFO L225 Difference]: With dead ends: 65 [2024-11-24 00:15:41,029 INFO L226 Difference]: Without dead ends: 54 [2024-11-24 00:15:41,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:15:41,040 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 28 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:15:41,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 65 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:15:41,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-24 00:15:41,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 42. [2024-11-24 00:15:41,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 32 states have (on average 1.78125) internal successors, (57), 41 states have internal predecessors, (57), 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) [2024-11-24 00:15:41,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 57 transitions. [2024-11-24 00:15:41,097 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 57 transitions. Word has length 5 [2024-11-24 00:15:41,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:15:41,101 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 57 transitions. [2024-11-24 00:15:41,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-24 00:15:41,102 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 57 transitions. [2024-11-24 00:15:41,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-24 00:15:41,102 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:15:41,102 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-24 00:15:41,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:15:41,103 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-24 00:15:41,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:15:41,104 INFO L85 PathProgramCache]: Analyzing trace with hash 889538471, now seen corresponding path program 1 times [2024-11-24 00:15:41,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:15:41,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167452794] [2024-11-24 00:15:41,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:15:41,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:15:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:15:41,120 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:15:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:15:41,152 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:15:41,152 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:15:41,155 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-11-24 00:15:41,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-24 00:15:41,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-24 00:15:41,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-24 00:15:41,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-11-24 00:15:41,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-11-24 00:15:41,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-24 00:15:41,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-24 00:15:41,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-24 00:15:41,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-24 00:15:41,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:15:41,164 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-24 00:15:41,188 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:15:41,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:15:41 BoogieIcfgContainer [2024-11-24 00:15:41,196 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:15:41,197 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:15:41,197 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:15:41,197 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:15:41,198 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:15:40" (3/4) ... [2024-11-24 00:15:41,201 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-24 00:15:41,253 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 1. [2024-11-24 00:15:41,305 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f768466-2e2a-4511-b718-20794790b755/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 00:15:41,305 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f768466-2e2a-4511-b718-20794790b755/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 00:15:41,306 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:15:41,307 INFO L158 Benchmark]: Toolchain (without parser) took 1631.05ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 48.7MB in the end (delta: 51.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-24 00:15:41,307 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:15:41,308 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.72ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 89.7MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:15:41,308 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.29ms. Allocated memory is still 142.6MB. Free memory was 89.7MB in the beginning and 88.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:15:41,308 INFO L158 Benchmark]: Boogie Preprocessor took 40.31ms. Allocated memory is still 142.6MB. Free memory was 88.3MB in the beginning and 87.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:15:41,309 INFO L158 Benchmark]: RCFGBuilder took 473.80ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 75.5MB in the end (delta: 11.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:15:41,309 INFO L158 Benchmark]: TraceAbstraction took 673.30ms. Allocated memory is still 142.6MB. Free memory was 74.8MB in the beginning and 52.6MB in the end (delta: 22.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:15:41,310 INFO L158 Benchmark]: Witness Printer took 108.88ms. Allocated memory is still 142.6MB. Free memory was 52.6MB in the beginning and 48.7MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:15:41,312 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.72ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 89.7MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.29ms. Allocated memory is still 142.6MB. Free memory was 89.7MB in the beginning and 88.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.31ms. Allocated memory is still 142.6MB. Free memory was 88.3MB in the beginning and 87.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 473.80ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 75.5MB in the end (delta: 11.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 673.30ms. Allocated memory is still 142.6MB. Free memory was 74.8MB in the beginning and 52.6MB in the end (delta: 22.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 108.88ms. Allocated memory is still 142.6MB. Free memory was 52.6MB in the beginning and 48.7MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. 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: 21]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int i, j, k, an, bn, tk; [L15] i = __VERIFIER_nondet_int() [L16] j = __VERIFIER_nondet_int() [L17] k = __VERIFIER_nondet_int() [L18] an = __VERIFIER_nondet_int() [L19] bn = __VERIFIER_nondet_int() [L20] tk = __VERIFIER_nondet_int() [L21] ((an >= i && bn >= j) || (an >= i && bn <= j) || (an <= i && bn >= j)) && k >= tk + 1 VAL [an=0, bn=0, i=0, j=0, k=0, tk=2147483647] [L21] tk + 1 VAL [an=0, bn=0, i=0, j=0, k=0] - UnprovableResult [Line: 21]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 28]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 28]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 31]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 31]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 33]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 33]: 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, 33 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 35 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=1, 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, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-24 00:15:41,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f768466-2e2a-4511-b718-20794790b755/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)