./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --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 db1e722f73dbd7795cdbaca4c816f6c8a0f90138145d9f90bf0f222b7dd371eb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:35:48,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:35:48,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:35:48,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:35:48,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:35:48,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:35:48,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:35:48,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:35:48,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:35:48,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:35:48,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:35:48,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:35:48,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:35:48,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:35:48,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:35:48,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:35:48,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:35:48,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:35:48,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:35:48,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:35:48,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:35:48,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:35:48,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:35:48,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:35:48,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:35:48,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:35:48,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:35:48,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:35:48,262 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:35:48,263 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:35:48,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:35:48,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:35:48,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:35:48,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:35:48,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:35:48,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:35:48,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:35:48,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:35:48,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:35:48,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:35:48,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:35:48,276 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 07:35:48,323 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:35:48,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:35:48,323 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:35:48,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:35:48,325 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:35:48,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:35:48,325 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:35:48,325 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:35:48,325 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:35:48,325 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:35:48,326 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:35:48,327 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:35:48,327 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:35:48,327 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:35:48,327 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:35:48,328 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:35:48,328 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:35:48,328 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:35:48,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:35:48,329 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:35:48,329 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:35:48,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:35:48,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:35:48,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:35:48,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:35:48,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:35:48,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:35:48,331 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 07:35:48,332 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:35:48,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:35:48,332 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:35:48,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:35:48,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:35:48,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:35:48,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:35:48,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:35:48,333 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:35:48,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:35:48,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:35:48,334 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:35:48,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:35:48,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:35:48,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:35:48,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db1e722f73dbd7795cdbaca4c816f6c8a0f90138145d9f90bf0f222b7dd371eb [2022-11-19 07:35:48,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:35:48,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:35:48,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:35:48,638 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:35:48,639 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:35:48,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2022-11-19 07:35:48,724 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/bin/utaipan-I9t0OCRTmS/data/87808f0e0/4ab20f1502884d2d9341ecbc8ff33d89/FLAG2652d438b [2022-11-19 07:35:49,210 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:35:49,211 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2022-11-19 07:35:49,241 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/bin/utaipan-I9t0OCRTmS/data/87808f0e0/4ab20f1502884d2d9341ecbc8ff33d89/FLAG2652d438b [2022-11-19 07:35:49,534 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/bin/utaipan-I9t0OCRTmS/data/87808f0e0/4ab20f1502884d2d9341ecbc8ff33d89 [2022-11-19 07:35:49,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:35:49,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:35:49,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:35:49,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:35:49,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:35:49,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:49" (1/1) ... [2022-11-19 07:35:49,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f3b13d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49, skipping insertion in model container [2022-11-19 07:35:49,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:49" (1/1) ... [2022-11-19 07:35:49,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:35:49,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:35:49,853 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c[17080,17093] [2022-11-19 07:35:49,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:35:49,862 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:35:49,906 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c[17080,17093] [2022-11-19 07:35:49,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:35:49,920 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:35:49,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49 WrapperNode [2022-11-19 07:35:49,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:35:49,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:35:49,922 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:35:49,922 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:35:49,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2022-11-19 07:35:49,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2022-11-19 07:35:49,982 INFO L138 Inliner]: procedures = 24, calls = 29, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 439 [2022-11-19 07:35:49,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:35:49,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:35:49,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:35:49,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:35:49,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2022-11-19 07:35:49,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2022-11-19 07:35:50,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2022-11-19 07:35:50,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2022-11-19 07:35:50,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2022-11-19 07:35:50,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2022-11-19 07:35:50,046 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2022-11-19 07:35:50,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2022-11-19 07:35:50,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:35:50,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:35:50,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:35:50,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:35:50,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2022-11-19 07:35:50,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:35:50,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:35:50,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:35:50,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:35:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:35:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-11-19 07:35:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-11-19 07:35:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:35:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-11-19 07:35:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-11-19 07:35:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:35:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:35:50,270 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:35:50,272 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:35:50,304 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:35:50,319 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:35:50,338 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:35:50,799 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##82: assume !false; [2022-11-19 07:35:50,799 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##81: assume false; [2022-11-19 07:35:50,799 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##58: assume !false; [2022-11-19 07:35:50,799 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume false; [2022-11-19 07:35:50,800 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2022-11-19 07:35:50,800 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2022-11-19 07:35:50,802 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:35:50,842 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2022-11-19 07:35:50,843 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2022-11-19 07:35:50,846 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:35:51,005 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:35:51,005 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:35:51,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:51 BoogieIcfgContainer [2022-11-19 07:35:51,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:35:51,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:35:51,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:35:51,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:35:51,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:35:49" (1/3) ... [2022-11-19 07:35:51,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7b8918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:51, skipping insertion in model container [2022-11-19 07:35:51,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (2/3) ... [2022-11-19 07:35:51,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7b8918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:51, skipping insertion in model container [2022-11-19 07:35:51,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:51" (3/3) ... [2022-11-19 07:35:51,018 INFO L112 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl1.cil.c [2022-11-19 07:35:51,037 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:35:51,037 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-19 07:35:51,088 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:35:51,095 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=LoopsAndPotentialCycles, 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;@1fd4e2d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:35:51,095 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-19 07:35:51,100 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 68 states have (on average 1.7205882352941178) internal successors, (117), 94 states have internal predecessors, (117), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-19 07:35:51,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 07:35:51,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:35:51,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 07:35:51,108 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-19 07:35:51,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:35:51,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1387226744, now seen corresponding path program 1 times [2022-11-19 07:35:51,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:35:51,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076261244] [2022-11-19 07:35:51,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:35:51,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:35:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:35:51,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:35:51,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:35:51,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076261244] [2022-11-19 07:35:51,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076261244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:35:51,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:35:51,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:35:51,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103006266] [2022-11-19 07:35:51,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:35:51,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:35:51,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:35:51,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:35:51,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:35:51,491 INFO L87 Difference]: Start difference. First operand has 101 states, 68 states have (on average 1.7205882352941178) internal successors, (117), 94 states have internal predecessors, (117), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-11-19 07:35:51,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:35:51,676 INFO L93 Difference]: Finished difference Result 195 states and 284 transitions. [2022-11-19 07:35:51,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:35:51,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 [2022-11-19 07:35:51,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:35:51,686 INFO L225 Difference]: With dead ends: 195 [2022-11-19 07:35:51,687 INFO L226 Difference]: Without dead ends: 45 [2022-11-19 07:35:51,708 INFO L412 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 [2022-11-19 07:35:51,712 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 86 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:35:51,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 185 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:35:51,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-19 07:35:51,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-19 07:35:51,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 44 states have internal predecessors, (44), 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) [2022-11-19 07:35:51,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 44 transitions. [2022-11-19 07:35:51,748 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 44 transitions. Word has length 6 [2022-11-19 07:35:51,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:35:51,749 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 44 transitions. [2022-11-19 07:35:51,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-11-19 07:35:51,750 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 44 transitions. [2022-11-19 07:35:51,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 07:35:51,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:35:51,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:35:51,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:35:51,751 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-19 07:35:51,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:35:51,752 INFO L85 PathProgramCache]: Analyzing trace with hash -54355925, now seen corresponding path program 1 times [2022-11-19 07:35:51,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:35:51,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019760444] [2022-11-19 07:35:51,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:35:51,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:35:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:35:51,775 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:35:51,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:35:51,814 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:35:51,815 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:35:51,817 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2022-11-19 07:35:51,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2022-11-19 07:35:51,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2022-11-19 07:35:51,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2022-11-19 07:35:51,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2022-11-19 07:35:51,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2022-11-19 07:35:51,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2022-11-19 07:35:51,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2022-11-19 07:35:51,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2022-11-19 07:35:51,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2022-11-19 07:35:51,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2022-11-19 07:35:51,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2022-11-19 07:35:51,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2022-11-19 07:35:51,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2022-11-19 07:35:51,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2022-11-19 07:35:51,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2022-11-19 07:35:51,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:35:51,827 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-19 07:35:51,831 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:35:51,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:35:51 BoogieIcfgContainer [2022-11-19 07:35:51,860 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:35:51,861 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:35:51,861 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:35:51,861 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:35:51,862 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:51" (3/4) ... [2022-11-19 07:35:51,864 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-19 07:35:51,924 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:35:51,924 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:35:51,925 INFO L158 Benchmark]: Toolchain (without parser) took 2383.04ms. Allocated memory is still 107.0MB. Free memory was 71.4MB in the beginning and 66.2MB in the end (delta: 5.3MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2022-11-19 07:35:51,925 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 77.6MB. Free memory was 52.3MB in the beginning and 52.3MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:35:51,925 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.12ms. Allocated memory is still 107.0MB. Free memory was 71.1MB in the beginning and 79.2MB in the end (delta: -8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:35:51,926 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.72ms. Allocated memory is still 107.0MB. Free memory was 79.2MB in the beginning and 76.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:35:51,926 INFO L158 Benchmark]: Boogie Preprocessor took 67.86ms. Allocated memory is still 107.0MB. Free memory was 76.4MB in the beginning and 74.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:35:51,927 INFO L158 Benchmark]: RCFGBuilder took 956.83ms. Allocated memory is still 107.0MB. Free memory was 74.3MB in the beginning and 67.0MB in the end (delta: 7.3MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2022-11-19 07:35:51,927 INFO L158 Benchmark]: TraceAbstraction took 849.92ms. Allocated memory is still 107.0MB. Free memory was 66.0MB in the beginning and 69.7MB in the end (delta: -3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:35:51,927 INFO L158 Benchmark]: Witness Printer took 63.20ms. Allocated memory is still 107.0MB. Free memory was 69.7MB in the beginning and 66.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:35:51,929 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 77.6MB. Free memory was 52.3MB in the beginning and 52.3MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.12ms. Allocated memory is still 107.0MB. Free memory was 71.1MB in the beginning and 79.2MB in the end (delta: -8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.72ms. Allocated memory is still 107.0MB. Free memory was 79.2MB in the beginning and 76.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.86ms. Allocated memory is still 107.0MB. Free memory was 76.4MB in the beginning and 74.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 956.83ms. Allocated memory is still 107.0MB. Free memory was 74.3MB in the beginning and 67.0MB in the end (delta: 7.3MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. * TraceAbstraction took 849.92ms. Allocated memory is still 107.0MB. Free memory was 66.0MB in the beginning and 69.7MB in the end (delta: -3.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 63.20ms. Allocated memory is still 107.0MB. Free memory was 69.7MB in the beginning and 66.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. 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: 169]: integer overflow possible integer overflow possible We found a FailurePath: [L27] int MPR3 ; [L22] int NP ; [L19] int Executive ; [L30] int compFptr ; [L24] int SKIP1 ; [L26] int MPR1 ; [L18] int KernelMode ; [L25] int SKIP2 ; [L29] int pended ; [L21] int UNLOADED ; [L31] int compRegistered ; [L20] int s ; [L33] int setEventCalled ; [L34] int customIrp ; [L32] int lowerDriverReturn ; [L35] int myStatus ; [L28] int IPC ; [L23] int DC ; [L289] int status ; [L290] int irp = __VERIFIER_nondet_int() ; [L291] int pirp ; [L292] int pirp__IoStatus__Status ; [L293] int irp_choice = __VERIFIER_nondet_int() ; [L294] int devobj = __VERIFIER_nondet_int() ; [L295] int __cil_tmp8 ; [L300] KernelMode = 0 [L301] Executive = 0 [L302] s = 0 [L303] UNLOADED = 0 [L304] NP = 0 [L305] DC = 0 [L306] SKIP1 = 0 [L307] SKIP2 = 0 [L308] MPR1 = 0 [L309] MPR3 = 0 [L310] IPC = 0 [L311] pended = 0 [L312] compFptr = 0 [L313] compRegistered = 0 [L314] lowerDriverReturn = 0 [L315] setEventCalled = 0 [L316] customIrp = 0 [L317] myStatus = 0 [L319] status = 0 [L320] pirp = irp [L321] CALL _BLAST_init() [L55] UNLOADED = 0 [L56] NP = 1 [L57] DC = 2 [L58] SKIP1 = 3 [L59] SKIP2 = 4 [L60] MPR1 = 5 [L61] MPR3 = 6 [L62] IPC = 7 [L63] s = UNLOADED [L64] pended = 0 [L65] compFptr = 0 [L66] compRegistered = 0 [L67] lowerDriverReturn = 0 [L68] setEventCalled = 0 [L69] customIrp = 0 [L321] RET _BLAST_init() [L323] COND TRUE status >= 0 [L324] s = NP [L325] customIrp = 0 [L326] setEventCalled = customIrp [L327] lowerDriverReturn = setEventCalled [L328] compRegistered = lowerDriverReturn [L329] pended = compRegistered [L330] pirp__IoStatus__Status = 0 [L331] myStatus = 0 [L332] COND FALSE !(irp_choice == 0) [L337] CALL stub_driver_init() [L41] s = NP [L42] pended = 0 [L43] compFptr = 0 [L44] compRegistered = 0 [L45] lowerDriverReturn = 0 [L46] setEventCalled = 0 [L47] customIrp = 0 [L337] RET stub_driver_init() [L340] COND TRUE status >= 0 [L341] __cil_tmp8 = 1 VAL [__cil_tmp8=1, compFptr=0, compRegistered=0, customIrp=0, DC=2, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L346] COND FALSE !(! __cil_tmp8) [L350] int tmp_ndt_1; [L351] tmp_ndt_1 = __VERIFIER_nondet_int() [L352] COND TRUE tmp_ndt_1 == 3 [L359] CALL KbFilter_PnP(devobj, pirp) [L76] int devExt ; [L77] int irpStack ; [L78] int status ; [L79] int event = __VERIFIER_nondet_int() ; [L80] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L81] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L82] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L83] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L84] int devExt__Started ; [L85] int devExt__Removed ; [L86] int devExt__SurpriseRemoved ; [L87] int Irp__IoStatus__Status ; [L88] int Irp__IoStatus__Information ; [L89] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L90] int irpSp ; [L91] int nextIrpSp ; [L92] int nextIrpSp__Control ; [L93] int irpSp___0 ; [L94] int irpSp__Context ; [L95] int irpSp__Control ; [L96] long __cil_tmp23 ; [L99] status = 0 [L100] devExt = DeviceObject__DeviceExtension [L101] irpStack = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-1, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=-1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-2147483648, irpStack=-2147483648, irpStack__MinorFunction=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L102] COND TRUE irpStack__MinorFunction == 0 [L168] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-1, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=-1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-2147483648, irpSp=-2147483648, irpStack=-2147483648, irpStack__MinorFunction=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L169] Irp__Tail__Overlay__CurrentStackLocation - 1 VAL [\old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-1, devExt__TopOfStack=0, DeviceObject=0, DeviceObject__DeviceExtension=-1, event=0, Executive=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-2147483648, irpSp=-2147483648, irpStack=-2147483648, irpStack__MinorFunction=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] - UnprovableResult [Line: 169]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 185]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 185]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 224]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 224]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 225]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 225]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 240]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 240]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 241]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 241]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 255]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 255]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 256]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 256]: 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 3 procedures, 101 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 185 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 129 mSDtfsCounter, 41 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=101occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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! [2022-11-19 07:35:51,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac4c24e7-9164-4df4-9bb0-eae6c85269e5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)