./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops/sum_array-2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_aeef0204-aca7-4e18-9188-e5874cfb9138/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeef0204-aca7-4e18-9188-e5874cfb9138/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeef0204-aca7-4e18-9188-e5874cfb9138/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeef0204-aca7-4e18-9188-e5874cfb9138/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/sum_array-2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeef0204-aca7-4e18-9188-e5874cfb9138/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeef0204-aca7-4e18-9188-e5874cfb9138/bin/utaipan-verify-NcY6lQBIFX --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 0e94a2410b8f9c85a45197b99fd856588e050ecf98cb4c3bee10ba4be0dc2732 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:01:16,559 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:01:16,697 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeef0204-aca7-4e18-9188-e5874cfb9138/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-12 01:01:16,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:01:16,712 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:01:16,755 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:01:16,756 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:01:16,756 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:01:16,758 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:01:16,763 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:01:16,764 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:01:16,766 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:01:16,766 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:01:16,768 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:01:16,769 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:01:16,769 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:01:16,770 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:01:16,770 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:01:16,771 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:01:16,771 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:01:16,772 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:01:16,773 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:01:16,774 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:01:16,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:01:16,775 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 01:01:16,776 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:01:16,776 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 01:01:16,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:01:16,777 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:01:16,778 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:01:16,780 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:01:16,780 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 01:01:16,780 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 01:01:16,781 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 01:01:16,781 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:01:16,781 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:01:16,782 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:01:16,782 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:01:16,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:01:16,783 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:01:16,783 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:01:16,784 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:01:16,784 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:01:16,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:01:16,785 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:01:16,785 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:01:16,786 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:01:16,786 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_aeef0204-aca7-4e18-9188-e5874cfb9138/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeef0204-aca7-4e18-9188-e5874cfb9138/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e94a2410b8f9c85a45197b99fd856588e050ecf98cb4c3bee10ba4be0dc2732 [2023-11-12 01:01:17,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:01:17,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:01:17,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:01:17,133 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:01:17,134 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:01:17,136 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeef0204-aca7-4e18-9188-e5874cfb9138/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/loops/sum_array-2-1.i [2023-11-12 01:01:20,433 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:01:20,739 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:01:20,740 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeef0204-aca7-4e18-9188-e5874cfb9138/sv-benchmarks/c/loops/sum_array-2-1.i [2023-11-12 01:01:20,750 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeef0204-aca7-4e18-9188-e5874cfb9138/bin/utaipan-verify-NcY6lQBIFX/data/232229799/fc56ab0e95b240e687037b48f685e91f/FLAG2f408ad42 [2023-11-12 01:01:20,770 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeef0204-aca7-4e18-9188-e5874cfb9138/bin/utaipan-verify-NcY6lQBIFX/data/232229799/fc56ab0e95b240e687037b48f685e91f [2023-11-12 01:01:20,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:01:20,781 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:01:20,784 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:01:20,784 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:01:20,791 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:01:20,792 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:01:20" (1/1) ... [2023-11-12 01:01:20,793 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c7e0e14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:20, skipping insertion in model container [2023-11-12 01:01:20,793 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:01:20" (1/1) ... [2023-11-12 01:01:20,825 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:01:21,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:01:21,097 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:01:21,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:01:21,188 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:01:21,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:21 WrapperNode [2023-11-12 01:01:21,189 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:01:21,190 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:01:21,190 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:01:21,191 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:01:21,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:21" (1/1) ... [2023-11-12 01:01:21,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:21" (1/1) ... [2023-11-12 01:01:21,269 INFO L138 Inliner]: procedures = 18, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 113 [2023-11-12 01:01:21,269 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:01:21,270 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:01:21,270 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:01:21,271 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:01:21,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:21" (1/1) ... [2023-11-12 01:01:21,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:21" (1/1) ... [2023-11-12 01:01:21,292 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:21" (1/1) ... [2023-11-12 01:01:21,292 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:21" (1/1) ... [2023-11-12 01:01:21,309 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:21" (1/1) ... [2023-11-12 01:01:21,314 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:21" (1/1) ... [2023-11-12 01:01:21,316 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:21" (1/1) ... [2023-11-12 01:01:21,318 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:21" (1/1) ... [2023-11-12 01:01:21,321 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:01:21,322 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:01:21,322 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:01:21,322 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:01:21,336 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:21" (1/1) ... [2023-11-12 01:01:21,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:01:21,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeef0204-aca7-4e18-9188-e5874cfb9138/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:01:21,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeef0204-aca7-4e18-9188-e5874cfb9138/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:01:21,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeef0204-aca7-4e18-9188-e5874cfb9138/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:01:21,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:01:21,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 01:01:21,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 01:01:21,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 01:01:21,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:01:21,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:01:21,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 01:01:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 01:01:21,534 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:01:21,536 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:01:21,840 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:01:21,911 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:01:21,912 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 01:01:21,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:01:21 BoogieIcfgContainer [2023-11-12 01:01:21,915 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:01:21,918 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:01:21,918 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:01:21,933 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:01:21,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:01:20" (1/3) ... [2023-11-12 01:01:21,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483ac041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:01:21, skipping insertion in model container [2023-11-12 01:01:21,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:21" (2/3) ... [2023-11-12 01:01:21,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483ac041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:01:21, skipping insertion in model container [2023-11-12 01:01:21,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:01:21" (3/3) ... [2023-11-12 01:01:21,942 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array-2-1.i [2023-11-12 01:01:21,959 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:01:21,960 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-12 01:01:22,014 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:01:22,021 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;@2c90cd2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:01:22,022 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-12 01:01:22,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 17 states have internal predecessors, (24), 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) [2023-11-12 01:01:22,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 01:01:22,036 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:01:22,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 01:01:22,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 01:01:22,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:01:22,045 INFO L85 PathProgramCache]: Analyzing trace with hash -391434532, now seen corresponding path program 1 times [2023-11-12 01:01:22,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:01:22,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141472078] [2023-11-12 01:01:22,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:22,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:01:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:01:22,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 01:01:22,619 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:01:22,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141472078] [2023-11-12 01:01:22,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141472078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:01:22,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:01:22,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 01:01:22,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747526596] [2023-11-12 01:01:22,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:01:22,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 01:01:22,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:01:22,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 01:01:22,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 01:01:22,661 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 17 states have internal predecessors, (24), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2023-11-12 01:01:22,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:01:22,800 INFO L93 Difference]: Finished difference Result 51 states and 69 transitions. [2023-11-12 01:01:22,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 01:01:22,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 6 [2023-11-12 01:01:22,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:01:22,811 INFO L225 Difference]: With dead ends: 51 [2023-11-12 01:01:22,812 INFO L226 Difference]: Without dead ends: 30 [2023-11-12 01:01:22,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 01:01:22,818 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 15 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:01:22,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 27 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:01:22,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-12 01:01:22,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 19. [2023-11-12 01:01:22,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 18 states have internal predecessors, (22), 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) [2023-11-12 01:01:22,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2023-11-12 01:01:22,855 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 6 [2023-11-12 01:01:22,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:01:22,856 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2023-11-12 01:01:22,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2023-11-12 01:01:22,856 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-11-12 01:01:22,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 01:01:22,857 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:01:22,857 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:01:22,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 01:01:22,858 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 01:01:22,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:01:22,859 INFO L85 PathProgramCache]: Analyzing trace with hash 758410321, now seen corresponding path program 1 times [2023-11-12 01:01:22,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:01:22,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830740995] [2023-11-12 01:01:22,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:22,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:01:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 01:01:22,991 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 01:01:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 01:01:23,133 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 01:01:23,136 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 01:01:23,138 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-12 01:01:23,141 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-12 01:01:23,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-12 01:01:23,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-12 01:01:23,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 01:01:23,147 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 01:01:23,152 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 01:01:23,176 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-12 01:01:23,177 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated [2023-11-12 01:01:23,180 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-12 01:01:23,181 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-12 01:01:23,181 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-12 01:01:23,181 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-12 01:01:23,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 01:01:23 BoogieIcfgContainer [2023-11-12 01:01:23,199 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 01:01:23,200 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 01:01:23,200 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 01:01:23,200 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 01:01:23,202 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:01:21" (3/4) ... [2023-11-12 01:01:23,203 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-12 01:01:23,213 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-12 01:01:23,216 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated [2023-11-12 01:01:23,225 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-12 01:01:23,225 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-12 01:01:23,227 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated [2023-11-12 01:01:23,228 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-12 01:01:23,279 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeef0204-aca7-4e18-9188-e5874cfb9138/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 01:01:23,279 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 01:01:23,280 INFO L158 Benchmark]: Toolchain (without parser) took 2499.69ms. Allocated memory is still 192.9MB. Free memory was 145.4MB in the beginning and 115.2MB in the end (delta: 30.2MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2023-11-12 01:01:23,283 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 134.2MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 01:01:23,283 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.92ms. Allocated memory is still 192.9MB. Free memory was 145.0MB in the beginning and 134.4MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 01:01:23,284 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.31ms. Allocated memory is still 192.9MB. Free memory was 134.4MB in the beginning and 132.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 01:01:23,284 INFO L158 Benchmark]: Boogie Preprocessor took 50.71ms. Allocated memory is still 192.9MB. Free memory was 132.4MB in the beginning and 131.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 01:01:23,285 INFO L158 Benchmark]: RCFGBuilder took 593.17ms. Allocated memory is still 192.9MB. Free memory was 131.2MB in the beginning and 114.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 01:01:23,285 INFO L158 Benchmark]: TraceAbstraction took 1281.09ms. Allocated memory is still 192.9MB. Free memory was 113.5MB in the beginning and 117.3MB in the end (delta: -3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 01:01:23,286 INFO L158 Benchmark]: Witness Printer took 79.56ms. Allocated memory is still 192.9MB. Free memory was 117.3MB in the beginning and 115.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 01:01:23,289 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 134.2MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.92ms. Allocated memory is still 192.9MB. Free memory was 145.0MB in the beginning and 134.4MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.31ms. Allocated memory is still 192.9MB. Free memory was 134.4MB in the beginning and 132.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.71ms. Allocated memory is still 192.9MB. Free memory was 132.4MB in the beginning and 131.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 593.17ms. Allocated memory is still 192.9MB. Free memory was 131.2MB in the beginning and 114.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1281.09ms. Allocated memory is still 192.9MB. Free memory was 113.5MB in the beginning and 117.3MB in the end (delta: -3.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 79.56ms. Allocated memory is still 192.9MB. Free memory was 117.3MB in the beginning and 115.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 42]: integer overflow possible integer overflow possible We found a FailurePath: [L27] unsigned int M = __VERIFIER_nondet_uint(); [L28] COND FALSE !(M > 1000000) [L31] int A[M], B[M], C[M]; [L32] unsigned int i; [L33] i=0 VAL [A={6:0}, B={3:0}, C={5:0}, M=1, i=0] [L33] COND TRUE i